The LA1776M integrates all six blocks required in a car radio tuner on a single chip.

Transcription

1 Ordering number : ENN885 ANYO emiconductors DATA HEET Monolithic Linear IC ingle-chip Tuner IC for Car Radios Overview The integrates all six blocks required in a car radio tuner on a single chip. Functions FM front end FM IF Noise canceller Multiplex AM up-conversion FM/AM switch MRC Feature Reduced noise in the mixer and amplifier blocks for improved performance Increased FM front end mixer dynamic range for improved three signal characteristics Improved AM practical sensitivity and saturated signal-to-noise ratio -meter sample-to-sample variations can be improved by using the FM -meter shift function (Fixed resistors can be used for the D, keyed AGC, muting on adjustment, muting attenuation, NC, and HCC.) High-speed searching can be implemented using the FM band mute time constant switching function. uperb listenability provided by improved medium and weak field noise canceller characteristics. Improved separation temperature dependency characteristics Excellent FM -meter voltage linearity Noise rejection improved by modifications to the NC circuit ample-to-sample variation correction circuit (zapping) in the FM IF circuit topping at stations with heavy interference is prevented by increasing the AM wide AGC sensitivity by 1 db during seek operations Built-in anti-birdie filter Any and all ANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your ANYO representative nearest you before using any ANYO products described or contained herein in such applications. ANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all ANYO products described or contained herein. ANYO Electric Co.,Ltd. emiconductor Company TOKYO OFFICE Tokyo Bldg., 1-1, 1 Chome, Ueno, Taito-ku, TOKYO, JAPAN 76 M OT B No.885-1/1

2 pecifications Maximum Ratings at Ta = 5 C Parameter ymbol Conditions Ratings Unit 1 max Pins 5,, and 61 9 V Maximum supply voltage max Pins 9, 6, 5, 59, and 6 1 V Allowable power dissipation Pd max Ta 85 C 95 mw Operating temperature Topr to 85 C torage temperature Tstg to 15 C Recommended Operating Conditions at Ta = 5 C Parameter ymbol Conditions Ratings Unit Pins 5, 9,, 6, 5, 59, 6, and 61 8 V Maximum Recommended supply voltage T IND Pin 9 5 V Operating supply voltage range op 7.5 to 8.5 V Function List FM Front End (Equivalent to the anyo LA119) Double input type double balanced mixer, base injection Pin diode drive AGC output MOFET second gate drive AGC output Keyed AGC adjustment pin Differential IF amplifier Wide band AGC sensitivity setting pin, and narrow band AGC sensitivity setting pin FM IF IF limiter amplifier -meter output (also used for AM) 6-stage pickup Multipath detection pin (shared FM signal meter) Quadrature detection AF preamplifier AGC output Band muting oft muting adjustment pin Muting attenuation adjustment pin IF counter buffer output (also used for AM) D (IF counter buffer on level) adjustment pin D output (active high) (also used for AM) Time constant switching during band muting -meter shifter Noise Canceller High-pass filter (first order) Delay circuit based low-pass filter (fourth order) Noise AGC Pilot signal compensation circuit Noise sensitivity setting pin Function for disabling the noise canceller in AM mode Multiplex Functions Adjustment-free VCO circuit Level follower type pilot canceller circuit HCC (high cut control) Automatic stereo/mono switching VCO oscillation stop function (AM mode) Forced monaural function NC (stereo noise controller) No.885-/1

3 tereo display pin Anti-birdie filter AM Double balanced mixer IF amplifier Detection RF AGC (narrow/wide) Pin diode drive pin IF AGC ignal meter output (also used for FM) Local oscillator circuits (first and second) Local oscillator buffer output IF counter buffer output (also used by the FM IF) D (IF counter buffer on level) adjustment pin D output (active high) (also used for AM) Wide AGC Detection output frequency characteristics adjustment pin (low cut, high deemphasis) AM stereo buffer MRC (multipath noise rejection circuit) AM/FM switching output (linked to the FM ) No.885-/1

4 Operating Characteristics at Ta = 5 C, = 8.V, with the specified test circuit and for standards other than anyo's for the FM IF input Ratings Parameter ymbol Conditions min typ max unit [FM Characteristics] At the FM IF input Current drain I CCO -AM No input, I9 I I6 I5 I59 I6 I ma Demodulation output V O -FM 1.7 MHz, 1dBµ, 1 khz, 1%mod, The pin 15 output mvrms Pin 1 demodulation output V O MHz, 1dBµ, 1 khz, 1%mod, The pin 1 output mvrms Channel balance CB The ratio between pins 15 and 16 at 1.7 MHz, 1 dbµ, 1 khz 1 1 db Total harmonic distortion THD-FM mono 1.7 MHz, 1 dbµ, 1 khz, 1% mod, pin % ignal-to-noise ratio: IF /N-FM IF 1.7 MHz, 1 dbµ, 1 khz, 1% mod, pin db AM suppression ratio: IF AMR IF 1.7 MHz, 1 dbµ, 1 khz, f m = 1 khz, % AM, pin db Muting attenuation Att-1 Att- Att- 1.7 MHz, 1 dbµ, 1 khz. The pin 15 attenuation when V goes from to V 1.7 MHz, 1 dbµ, 1 khz. The pin 15 attenuation when V goes from to V*1 1.7 MHz, 1 dbµ, 1 khz. The pin 15 attenuation when V goes from to V * db db db eparation eparation 1.7 MHz, 1 dbµ, LR = 9%, pilot = 1%. The pin 15 output ratio db tereo on level T-ON The pilot modulation such that V9<.5 V % tereo off level T-OFF The pilot modulation such that V9>.5 V % Main total harmonic distortion THD-Main L 1.7 MHz, 1 dbµ, LR = 9%, pilot = 1%. The pin 15 signal. 1. % Pilot cancellation NC output attenuation HCC output attenuation PCAN AttNC AttHCC-1 AttHCC- 1.7 MHz, 1 dbµ, pilot = 1%. The pin 15 signal/the pilot level leakage. DIN audio 1.7 MHz, 1 dbµ, L-R = 9%, pilot = 1%. V8 = V.6 V, pin MHz, 1 dbµ, 1 khz, LR = 9%, pilot = 1%. V9 = V.6 V, pin MHz, 1 dbµ, 1 khz, LR = 9%, pilot = 1%. V9 = V.1 V, pin 15 db 8 1 db 6 1 db db Input limiting voltage Vi-lim 1 dbµ, 1.7 MHz, % modulation. The IF input such that the input reference output goes down by db 5 9 dbµ Muting sensitivity Vi-mute The IF input level (unmodulated) when V = V dbµ D-sen1 FM The IF input level (unmodulated) (over 1 mv rms) D sensitivity such that the IF counter buffer output goes on dbµ D-sen FM Unmodulated IF input such that the D pin goes to the on state dbµ IF counter buffer output V IFBUFF-FM 1.7 MHz, 1 dbµ, unmodulated. The pin output 15 mvrms V M FM-1 No input. The pin DC output, unmodulated.1. V ignal meter output V M FM- 6 dbµ. The pin DC output, unmodulated V V M FM- 8 dbµ. The pin DC output, unmodulated..7.5 V V M FM- 11 dbµ. The pin DC output, unmodulated V Muting bandwidth BW-mute 1 dbµ. The bandwidth when V = V, unmodulated 15 9 khz Mute drive output V MUTE- No input. The pin DC output, unmodulated V V MUTE-1 1 dbµ, dbµ. The pin DC output, unmodulated.1. V [FM FE Mixer Input N-AGC on input V N -AGC 8 MHz, unmodulated. The input such that the pin voltage is. V or below dbµ W-AGC on input V W AGC 8 MHz, unmodulated. The input such that the pin voltage is. V or below. (When the keyed AGC is set to. V.) dbµ Conversion gain A.V 8 MHz, 8 dbµ, unmodulated. The FE CF output 9 1 mvrms Oscillator buffer output V OCBUFFFM No input mvrms [Multipath Rejection Circuit] MRC input (pin 7) MRC output VMRC V = 5 V.9..1 V MRC operating level MRC-ON The pin 6 input level at f = 7 khz such that pin goes to 5 V and pin 7 goes to V mvrms Continued on next page. No.885-/1

5 Continued from preceding page. Ratings Parameter ymbol Conditions min typ max unit [AM Characteristics] AM ANT input Practical sensitivity /N- 1 MHz, dbµ, f m = 1 khz, % modulation, pin 15 db Detector output V O -AM 1 MHz, 7 dbµ, f m = 1 khz, % modulation, pin mvrms Pin 1 detector output V O -AM1 1 MHz, 7 dbµ, f m = 1 khz, % modulation, pin mvms 1 MHz, 7 dbµ, referenced to the output, the input amplitude AGC F.O.M. V AGC-FOM such that the output falls by 1 db. Pin db ignal-to-noise ratio /N-AM 1 MHz, 7 dbµ, f m = 1 khz, % modulation 5 56 db Total harmonic distortion THD-AM 1 MHz, 7 dbµ, f m = 1 khz, 8% modulation. 1 % V M AM-1 No input..1.5 V ignal meter output V M AM- 1 MHz, 1 dbµ, unmodulated V Oscillator buffer output V OCBUFF AM No input, the pin 15 output 185 mvrms Wide band AGC sensitivity W-AGCsen1 1. MHz, the input when V8 =.7 V dbµ W-AGCsen 1. MHz, the input when V8 =.7 V (seek mode) dbµ D sensitivity D-sen1 AM 1 MHz, the ANT input level such that the IF counter output turns on. 6 dbµ D-sen AM 1 MHz, the ANT input level such that the D pin goes to the on state. 6 dbµ IF buffer output V IFBUFF-AM 1 MHz, 7 dbµ, unmodulated. The pin output 18 mvrms Note: These measurements must be made using the either the IC IC socket (manufactured by Yamaichi Electronics). * 1. When the resistor between pin 58 and ground is kω. *. When the resistor between pin 58 and ground is kω. Package Dimensions Unit:mm 159A Allowable power dissipation, Pdmax mw Mounted on a mm glass epoxy printed circuit board Ambient temperature, Ta ºC No.885-5/1

6 AC Test Circuit W1.kΩ VD5 Mute D FM DET OUT VA11 µf HCC NC VD MRC OUT MRC IN Vsm 5kΩ 5kΩ W5 5V.µF.1µF 1kΩ 9kΩ 1µF 1kΩ 68kΩ.µF 9pF 56kΩ W µF 1µF.µF 9 1 MUTE drive 5 MUTE IF AMP REG.7V Q.DET MUTE AMDET AMLC Ω AM IF 51 IF AMP 9 IF count AMP REG NC.MPX FM AFC IF AMP ANT D 5 MUTE AMP. AM IF 8 IF AMP AM RF AGC drive AMIF AGC 5 MRC out 7 IF count W REG FM IF H det Mute ATT control IF AMP s mut AM Vsm AM MIX 5 time const IF AMP 6 FM/AM D T IND REG AM REG BUFF FM Vsm AM W AGC 1MH AM X OC Zap AM N AGC 55 5 MRC noise amp 56 AM/FM W REG FE KEYED AGC 1st IF AMP 57 7µF 58 W-AGC LEVEL DET 59 tri ger phase comp 1 VCO stop HCC NC LPF NC HPF 1µH N-AGC 6 ECL AM/FM MIX pilot det FF 19K FF 8K NC - ECL pilot can ECL 6 AM OC VCO FF ECL AM OC BUFF 18 ub De coder MATRIX GATE TRIG NC AGC FM RF AGC FM OC FM OC BUFF 6 ECL 17 Main HC ANT D pf.15µf.15µf pf pf 5pF.1µF kω MΩ VC8 18pF 1µF CF OUT 1µH MH 1kΩ FC18G 6Ω 75Ω AC AC AC VA6 5Ω Ω 5Ω AN Vcc VA6 5Ω Ω 65pF 15pF 5Ω 5Ω FM RF AGC VD 1 Vcc PG1 AC1 Vcc 1kΩ W6 IF Buffer VA8 1kΩ 18kΩ VA pf 1pF VCO OUT.1µF D/T IND VD KETED AGC 5V kω 1kΩ W 1pF 8pF 1kΩ.µF W 1kΩ 1kΩ µf 1kΩ 1µF.µF 15pF 8V K1 15pF 7Ω Ω VR1 91JF18 CB kω kω W7 W8.7µF VR 1kΩ kω W9.1µF X, TAL 68pF.1µF 1.5MHz C56 kω 7Ω 7Ω VA1 C56 OC Buffer kω W1 1µF 1µF VA VA FM 8V AM V VA9 VA1 GND FE Vcc FM Vt HPF OUT AM Vt LPF OUT L-ch R-ch GND VCC No.885-6/1

7 Application Circuit Example MUTE drive 5 W IF AMP REG.7V Q.DET MUTE AMDET AMLC 51 IF AMP AM IF 9 IF COUNT AMP REG NC.MPX FM AFC IF AMP ANT D 5 MUTE AMP. 8 AM RF AGC drive AMIF AGC AM IF1 IF AMP 5 MRC out 7 IF COUNT W REG FM IF H det Mute ATT control IF AMP s mute AM Vsm AM MIX 5 time const IF AMP 6 5V T IND AM/FM D.µF VCC 8V kω MUTE ON ADJ 1kΩ 1µF.µF RF AGC BYPA 1.kΩ 1µF FM D ADJ 56kΩ MUTE DRIVE 1kΩ VREF.7V 9pF AFC IN AM/FM D T IND PILOT DET AM LC 1µF KEYED AGC AM IF AGC AM IFT AM ANT D AM WAGC IN 1µF 75Ω 1pF FM VM AM nd MIX IN 1kΩ min:5kω DET OUT AM IF IN 8pF.µF 1Ω 68kΩ.µF Ω 1MH 6Ω NC IN 1 kω HCC AM IF IN NC AM IF OUT FM IF OUT 1µH.µF MRC OUT AM MIX OUT 15pF 15pF FC18G MRC ADJ FM/AM D T IND REG AM REG BUFF FM Vsm AM W AGC AM X OC 1µH GAD FM WB AGC AM D ADJ 1kΩ Zap AM N AGC 55 51kΩ.µF 1kΩ 5 MRC noise amp MH GND 56 AF AGC 1µH 1kΩ.µF AM/FM VM FM/AM W REG FE KEYED AGC 1st IF AMP 57 AM IF IN1 FM IF IN1 58 7pF IN FM NB AGC MUTE ATT Ω IF COUNT BUFFER 7Ω IF Buffer 7kΩ PHAE COM W-AGC LEVEL DET 59 MIX OUT 5/.5/V tri ger phase comp 1 VCO stop HCC NC LPF NC HPF N-AGC 6 MIX OUT PHAE COM VCO ECL AM/FM MIX pilot det Ω FF 19K FF 8K NC FE VCC 1pF ECL 61 91kHz CB EP ADJ Ω 1pF µf 19 pilot can ECL 6 AM MIX IN.7µF 1kµ kω AM OC VOC FF ECL AM OC BUFF 18 ub De coder MATRIX GATE TRIG NC AGC FM RF AGC MIX IN VC8 FM OC AM OC BUFF 6 PI CAN OUT ECL 17 Main HC 1pF 1kΩ ANT D 6 1pF.1µF PI CAN IN 1pF MIX IN kΩ.15µF MPX OUT R.7µF AM/FM OC BUFF pf.15µf MPX OUT L NC,MPX GND 1.5M IN PLL IN LPF OUT HOLD AGC ADJ NOIE AGC EN 15kΩ pf pf 1pF kω FE GND.1µF 68pF FM RF1µF AGC 1pF 1kΩ VC8 15pF FM OC AGC FM ANT D 1kΩ 18Ω kω 18pF VC8 1Ω.1µF.1µF 1kΩ 1pF 8pF AM OC 65kΩ 1pF kω L-ch R-ch GND VCC FM/AM VM AM/FM FE GND AM/FM VT FE VCC AM/FM W OC BUFF 1.5kHz IN AM VCC 8V AM ANT AM/FM ANT IN No.885-7/1

8 Pin Descriptions Pin No. Pin Description Equivalent circuit ANT 6 pin RF AGC 1 FM antenna damping drive pin An antenna damping current flows when the RF AGC voltage (pin 1) reaches V D. 1 pf 1 Ω 1 5 Ω 1 pf (61pin) FET ND GATE 1 kω ANT DAMPING RF AGC Used to control the FET second gate voltage. In AM mode, forcibly set the pin voltage to the low level and apply AGC to the FM RF system. N AGC DET W AGC DET -V D KEYED AGC EF. GND (5 pin) FM OC Oscillator connection This pin is designed to drive an external oscillator circuit that uses external transistors and capacitors. 5 pf 1 kω VT pf kω Continued on next page. No.885-8/1

9 Continued from preceding page. Pin No. Pin Description Equivalent circuit 5 AM/FM W The pin 5 input voltage state (high or low) switches between AM and FM modes. V5 = high (8 V): FM V5 = low ( V): AM This level is also used as the FM oscillator circuit. 8V 5 FM OC GND V AM/FM switching circuit kω kω 15 kω 1 kω 6 7 Noise AGC sensitivity AGC adjustment After setting up the medium field (about 5 dbµ) sensitivity with the noise sensitivity setting pin (pin 6), set the weak field (about to dbµ) sensitivity with the AGC adjustment pin (pin 7) Ω 6 7 kω.1 µf MΩ. µf FM OC AM OC 8 AM/FM oscillator buffer output This pin is shared by the AM and FM systems. 8 (16 pin) 9 9 AM OC AM system first oscillator This oscillator can provide frequencies for use up to the shortwave band. This pin includes an ALC circuit. A L C Continued on next page. No.885-9/1

10 Continued from preceding page. Pin No. Pin Description Equivalent circuit.1µf 68 pf Memory circuit connection Recording circuit used during noise canceller operation. Differential amp Gate circuit LPF kω 1 Pilot input Pin 1 is the PLL circuit input pin. PLL N.C µf 1 kω 5.6 V pf to nd MIX 1 AM nd OC Crystal oscillator circuit Use the HC-9/U- manufactured by Kinseki, Ltd. CL = pf pf 1 X tal 1.6 MHz 1 N. C, MPX, MRC, GND Ground for the N, C, MPX, and MRC circuits Continued on next page. No.885-1/1

11 Continued from preceding page. Pin No. Pin Description Equivalent circuit AM output MPX output (left) MPX output (right) FM multiplex output For deemphasis, use the following capacitors: 5 µ:.15 µf. kω. kω 75 µ:. µf µf.15 µ F 5 kω 17 Pilot canceller signal input Adjustment is required since the pilot signal level varies with the sample-to-sample variations in the IF output level and other parameters. 1 kω 6.7 kω µf 5 kω 18 Pilot canceller signal output Pin 18 is the output pin for the pilot canceller signal. Ω Ω µf 5 kω Continued on next page. No /1

12 Continued from preceding page. Pin No. Pin Description Equivalent circuit Composite signal 1 kω DECODER 19 eparation adjustment pin Use a trimmer to adjust the subdecoder input level. (The output level is not modified in mono and main modes.) 19 kω.1 µf V REF CB 91 JF18 VCO The oscillator frequency is 91 Hz. JF18 V REF 1 PHAE COMP 6 kω 6 kω 19 khz 9º 1 Continued on next page. No.885-1/1

13 Continued from preceding page. Pin No. Pin Description Equivalent circuit This pin functions both as the IF counter buffer (AC output) and as the seek/stop switch pin. FM D. V. V AM D IF counter buffer seek/stop switching FM mode 5 V (high): eek mode.5 V: High-speed D mode FM D 1. V V (low): Reception mode AM mode 5 V (high): eek mode 51 kω V (low): Reception mode TOP.5 V/5V AM/FM signal meter Dedicated FM signal meter Fixed-current drive signal meter output FM -meter AM -meter 1 kω 1 kω AM/FM W 6 MRC AC input The supports two methods: detecting IF - meter wideband components and detecting the noise canceller high-pass filter noise output. The noise amplifier gain is determined by R and the internal kω resistor as shown in the figure. Note that the frequency characteristics are determined by C1. C1 R 6 kω Dedicated MRC -meter voltage 7 µa C 7 MRC output The MRC detector time constant is determined by a 1 Ω resistor and C when discharging and by the 7-µA current and C when charging. 1 Ω 7 8 pin Continued on next page. No.885-1/1

14 Continued from preceding page. Pin No. Pin Description Equivalent circuit 8 NC control input The sub-output is controlled by a to 1-V input. 8 9 HCC control input The high-frequency output is controlled by an input in the to 1 V range. 9 1 pf 1 µf Noise canceller input The input impedance is about 5 kω.. µf 1 5 kω. V Continued on next page. No.885-1/1

15 Continued from preceding page. Pin No. Pin Description Equivalent circuit FM detector output 1 1 Noise canceller input AM/FM detector output Pin is the noise canceller input. The input impedance is 5 kω Pin 1 is the AM and FM detector output In FM mode, this is a low-impedance output. In AM mode, the output impedance is 1 kω. AM detector output 1 kω R. µf The AM detection output can be modified by adjusting the value of R. Noise canceller 5 kω V M IF -meter output FM -meter output block 1 kω 1 pf 9 C1 Mute drive output The muting time constant is determined by an external RC circuit as described below. Attack time: TA = 1 kω C1 Release time: TR = 5 kω C1 Noise convergence adjustment The noise convergence when V is V will be about db. (The basis can be varied from 5 to 5 db for a 1 khz.5 khz deviation output.) EEK OFF. µf 1 kω 5 kω MUTE AMP. *: There is no hole detection function. Muting off function The muting function is turned off by a kω resistor between pin and ground. OFT MUTE Band muting D circuit Continued on next page. No /1

16 Continued from preceding page. Pin No. Pin Description Equivalent circuit R Null voltage 5 6 Vref:.7 V QD output When tuned, the voltage between pins and 7, V 7, will be V. The band muting function turns on when V 7.7 V. Quadrature detector IF limitter amplifier 8 Band muting time constant switching R1: Resistor that determines the width of the band muting function When R1 is larger... The band becomes narrower When R1 is smaller... The band becomes wider The band muting time constants are determined by the following components. During reception: R1, C, and C8 During seek: R1 and C The band muting time constant can be made smaller by reducing the value of C. Degradation of total harmonic distortion characteristics at low temperatures can be prevented by make C8 larger. During FM reception: on 5 Ω C8 R1 C 8 7 Band muting V is switched by the voltage mode as described below. 9 AM/FM D pin tereo indicator FM mode 5 V: V operates in conjunction with the D pin and IF counter buffer..5 V: V operates as the forcible D mode pin. V: Reception mode AM mode (There are two modes: V or 5 V.) 9 AM/FM D eek/stop switching tereo indicator 5 V: Linked operation with the seek D pin..5 V: Reception mode, no function. V: Reception mode 19 5 V Continued on next page. No /1

17 Continued from preceding page. Pin No. Pin Description Equivalent circuit VCC IF, NC, MPX, VCC R D Adj 8 1 FM D The comparison voltage is controlled by an external resistor. In seek mode, the seek operation will stop when V1 < Vsm. V kω D Comparator Vsm -meter 19 khz º BIA This pin us used for both FM pilot detection and AM low-cut filter. kω Pilot detector AM L.C Pilot detection The system is forced to mono mode when a 1 MΩ resistor is inserted between pin and ground. In AM mode, the frequency characteristics of the unneeded audio band below 1 Hz are modified producing a clear audio signal. kω kω AM low-cut filter The cutoff frequency f C can be determined from the following formula. F C = 1/ π. kω C DET. kω. kω 1 kω 1kΩ C 1 µf Vsm Dedicated keyed AGC -meter Keyed AGC The keyed AGC function starts operation when V becomes less than or equal to.8 V. (Narrow AGC off mode.) N-AGC 1 kω 1 kω.8 V Continued on next page. No /1

18 Continued from preceding page. Pin No. Pin Description Equivalent circuit 1 kω FM muting on level adjust Modify the value of the external resistor to adjust the muting on level. soft mute MUTE.7 V kω C. µf TR1: eek mode time constant switching diode IF AGC Discharge diode Reception τ =. µf kω eek τ =. µf 1 Ω The external capacitors are connected to. This is because the IF amplifier operates referenced to. DET TR1. kω. kω 5 Ω IF AGC EEK ON 1 Ω kω pin 6 pin 6 IF output The IF amplifier load DET Continued on next page. No /1

19 Continued from preceding page. Pin No. Pin Description Equivalent circuit RF AGC rectification capacitor The low frequency distortion is determined as follows: 5.8 V 1 kω 7 56 RF AGC bypass RF AGC Increasing C7 and C56 improves the distortion but makes the response slower. Reducing C7 and C56 aggravates the distortion but makes the response faster.. µf 7 Antenna damping *:If the audio is disturbed due to the RF AGC when there are rapid changes in the reception field strength (on the order of off to 8 dbµ), the combination of the time constants due to C56 and C7 must be changed. For AGC use 56 7 µf 5.7 V 1 kω 1 kω 5 51 FM IF input IF bypass Due to the high gain of the limiter amplifer, care must be taken when choosing the grounding point for the limiter amplifer input capacitor to prevent oscillation. Ω µf kω 1 Ω 5 IF input The input impedance is kω. 5 5 IF OUT 61 pin 5 IF amplifier output (AM/FM) First IF amplifier input pin Ω 57 IF amplifier input (AM/FM) Inverted output amplifier The gain is switched between AM and FM modes IF IN 57 Ω.75 V Continued on next page. No /1

20 Continued from preceding page. Pin No. Pin Description Equivalent circuit pin 5 pin OC 5 9 AM MIX OUT AM MIX IN The mixer coil connected to the pin 5 mixer output must be wired to (pin ). The pin 9 mixer input impedance is 1 Ω M 1.7 M 1 kω 6 pin W-AGC N-AGC Pins 55 and 58 include built-in DC cut capacitors. 58 W-AGC IN AM-D Adj N-AGC IN The AGC on level is determined by the values of the capacitors C1 and C. Pin 55 functions as the D sensitivity adjustment pin in AM mode. V55 is changed by the value of the external resistor. D is operated by comparing V55 with the -meter voltage. eek mode stop condition: V55 < Vsm MIX IN C1 C pf 5 pf 1.5 kω MIX OUT kω AM D -meter FM Vsm 5 pf 8 AM antenna damping drive output Wideband AGC input FM -meter voltage shift I8 = 6 ma Antenna damping current Resistor values under 5 kω cannot be used for the FM -meter shift resistor.. µf 8 1 Ω I8 kω W.AGC AMP. ANT DAMPING DRIVER Continued on next page. No.885-/1

21 Continued from preceding page. Pin No. Pin Description Equivalent circuit 59 6 Y-type mixer circuit OC FM/AM MIX output AM MIX input Pins 59 and 6 are the mixer outputs 1.7 MHz (1.71 MHz) Input impedance: 1 kω 6 1 kω V6 =. V 1T.IF O C Mixer output Mixer input Double balanced mixer Pins 59 and 6 are the mixer 1.7-MHz output Pins 6 and 6 are the mixer inputs These are base injection type inputs. Note: The lines for pins 6 and 6 must be kept separated from the lines for pins 59 and 6. Ω 1 pf RF AMP 1 pf No.885-1/1

22 Test Conditions Parameter ymbol W1 W W W W5 W6 W7 W8 W9 W1 Current drain I CCO -AM OFF B OFF B ON OFF OFF ON Demodulation output V O -FM ON B OFF B ON OFF OFF ON Pin 1 demodulation output V O -1 ON B OFF B ON OFF OFF ON Channel balance CB ON B OFF B ON OFF OFF ON Total harmonic distortion (FM) THD-FM mono ON B OFF B ON OFF OFF ON ignal-to-noise ratio: IF /N-FM IF ON B OFF B ON OFF OFF ON AM suppression ratio: IF AMR IF ON B OFF B ON OFF OFF ON Att-1 ON B OFF B ON OFF OFF ON Muting attenuation Att- ON B OFF B ON ON OFF ON Att- ON B OFF B ON OFF ON ON eparation eparation ON B OFF B ON OFF OFF ON tereo on level T-ON ON B OFF B ON OFF OFF ON tereo off level T-OFF ON B OFF B ON OFF OFF ON Main total harmonic distortion THD-Main L ON B OFF B ON OFF OFF ON Pilot cancellation PCAN ON B OFF B ON OFF OFF OFF/ON NC output attenuation AttNC ON B OFF B ON OFF OFF ON HCC output attenuation 1 AttHCC-1 ON B OFF B ON OFF OFF ON HCC output attenuation AttHCC- ON B OFF B ON OFF OFF ON Input limiting voltage V IN -LIM ON B OFF B ON OFF OFF ON ON Muting sensitivity V IN -MUTE ON B OFF B ON OFF OFF ON D sensitivity 1 D-sen1 FM ON B OFF B OFF OFF OFF OFF ON D sensitivity D-sen FM ON B OFF B ON OFF OFF OFF ON IF counter Buffer output V IFBUFF-FM ON B OFF B OFF OFF OFF OFF ON V M FM-1 ON B OFF B ON OFF OFF ON ignal meter output (FM) V M FM- ON B OFF B ON OFF OFF ON V M FM- ON B OFF B ON OFF OFF ON V M FM- ON B OFF B ON OFF OFF ON Muting Bandwidth BW-mute ON B OFF B ON OFF OFF ON Mute drive output V MUTE- ON B OFF B ON OFF OFF ON V MUTE-1 ON B OFF B ON OFF OFF ON N-AGC on input V NAGC ON A ON B ON OFF OFF W-AGC on input V WAGC ON A ON B ON OFF OFF Conversion gain A.V ON A ON B ON OFF OFF Oscillator buffer output V OC BUFF-FM ON A ON B ON OFF OFF MRC output V MRC ON OFF B ON OFF OFF MRC operating level MRC-ON ON OFF B ON OFF OFF Practical sensitivity /N- OFF OFF B ON ON Detection output V O -AM OFF OFF B ON ON Pin 1 detection output V O -AM1 OFF OFF B ON ON AGC F.O.M. V AGC-FOM OFF OFF B ON ON ignal-to-noise ratio /N-AM OFF OFF B ON ON Total harmonic distortion (AM) THD-AM OFF OFF B ON ON ignal meter output (AM) V M AM-1 OFF OFF B ON ON V M AM- OFF OFF B ON ON Oscillator buffer output V OC BUFF-AM OFF OFF B ON ON Wide band AGC sensitivity W-AGCsen 1 OFF OFF B ON ON W-AGCsen OFF OFF B ON ON D sensitivity D-sen1 AM OFF OFF B OFF OFF D-sen AM OFF OFF B OFF OFF IF buffer output V IFBUFF -AM OFF OFF B OFF OFF No.885-/1

23 Usage Notes 1.AM/FM witching Pin 5 is used for switching between AM and FM (dedicated FM oscillator ) FM mode: When the pin 5 voltage is greater than V. AM mode: When the pin 5 voltage is less than V. FM/AM W FM OC V5 5 FE GND FM OC.Pin 9: AM/FM D and tereo Indicator Pin 9 is used both for AM and FM station detection and as a stereo indicator. FM 8V/ AM/FM W FM mode 5 V: Operates as the D pin, coupled to the IF counter buffer..5 V: Operates in forced D mode. V: Reception mode AM mode (two modes: V and 5 V) 5 V: Operates coupled as the seek D pin.5 V: Reception mode, no function V: Reception mode.front End Notes on interface characteristics Like the previous anyo products, the includes the D (triple dimension) AGC circuit. This circuit allow the to achieve at the same time both good three-signal interference characteristics (intermodulation characteristics) and two-signal sensitivity suppression characteristics. -1.Intermodulation characteristics The prevents intermodulation from occurring by applying dual high-band AGC AGC on sensitivity Wide AGC (7 p) Keyed AGC (1 K) Narrow AGC (7 p) 6 Center frequency: 98.1 MHz Keyed AGC ( pin) = 1 K f [MHz] No.885-/1

24 -.Two-ignal ensitivity uppression Like the earlier anyo products, the 's D AGC determines the amount of wide-band AGC applied using the information acquired from three frequency characteristics. RF and antenna circuit information: Mixer input AGC Mixer circuit information: Mixer output AGC <- Three dimensions CF selectivity: -meter output -.FE Block AGC Like the earlier anyo products, the uses the follow two functions (1) PIN diode antenna input control () FET second gate control The AGC input pins are pin 58 (narrow AGC) and pin 55 (wide AGC). Applying AGC The PIN diode drive circuit is turned on when (roughly) ( V) is 1 V or higher. In application circuits, there will be about to db of attenuation. When an adequate current flows in the antenna attenuator PIN diode and the impedance falls, the FET second gate voltage falls, the FET gm falls, and the AGC operates. The recommended FET is the anyo K6, which is an enhanced type MOFET, and thus the full AGC will be applied when the voltage between the second gate and the source ( G- ) is. Note that if a depletion type MOFET were used, AGC would not be applied unless V G- were lower than V Pin voltage Region where the AGC does not operate AGC voltage V 6 5 AGC amount due to the PIN diode AGC amount due to the MOFET's second gate. 1 PIN diode voltage Field strength - dbµ -. Mixer The 's mixer circuit is a double balanced mixer that used balanced signals for both the input and output. Input type: base input Input impedance: kω 59 6 OC kω kω 6 6 No.885-/1

25 -5. Mixer Pin : The FM oscillator circuit is formed from external components. Pin 8: AM/FM oscillator buffer BUFF AM OC V T 8 FM/AM OC BUFF -6.FM: First IF Amplifier (1.7 MHz) Input impedance: Ω (pin 57) Output impedance: Ω (pin 5) No.885-5/1

26 . FM IF -1.Notes on FM D and D Adjustment The FM station detection and IF counter buffer operate with the following elements. 8 7 AFC EEK = OFF T IND FM -meter _ AFC.7.6 V -.6 V 1 _ V.7 V kω kω mute AMP _ 1 _ D _ EEK = OF oft mute FM IF 1 58 mute ATT IF conut 9 FM D adj mute on mute d IF conut D/T IF conut kω kω 5 V.5 V 5 V The following conditions must be met for the station detection and IF counter buffer to operate. (1) V > V1 - The -meter voltage must be higher than the pin 1 voltage () V <.7 V (Vbe) - The band muting function must not be operating. () V = high - A high level (VDD) must be applied to pin from a 51 kω resistor. The figure below shows the relationships between the FM station detection, the IF counter buffer output, the - meter voltage, and the muting operation output. V Larger values of R -meter V 8 V maller values of R V 6 V over.7 V V over.7 V 5 V V AC D as an D signal D ON D ON tereo Mono V DC OFF IF count buffer 5 V OFF IF counter output off.5 V V RD and other types of D detection can be used by switching these modes. No.885-6/1

27 -.Transient Response Characteristics During Automatic election The transient response characteristics when the D or IF counter buffer are turned on or off are determined by the time constant at the pins shown below. (1) AFC time constant Pin 7 () Muting time constant Pin () -meter time constant Pin (1) tation detection time constant due to the pin 7 AFC voltage time constant ince there is a function for switching the AFC time constant, it is possible to set the time constants so that there are no harmful effects. For reception mode, if the pin 8 capacitor value is not made comparatively large, the total harmonic distortion may be made worse. Vref 1 kω AFC 7 8 FM TOP: ON FM EEK: OFF Reception mode time constant: Make the time constant longer with R_7, C7, and C8. C R-7 C 7 C 8 eek mode time constant: A high-speed response can be achieved with R_7 and C7, since the seek mode time constant is independent of C8. The following values are recommended. C7: About. µf C8: About 1 µf () tation detection time constant due to the pin muting voltage time constant The volume changes due to fluctuations in the field during weak field reception can be made smoother by setting the soft muting operation attack and release times appropriately. MUTE DRIVE 1 kω 5 kω MUTE AMP Attack Release C () tation detection time constant due to -meter time constant ince the pin current (I) changes with the field strength, the time constant also changes. There is no hysteresis in the comparator circuit. Note that if a smaller value is used for C, the MRF frequency characteristics setting will need to be changed as well. FM -meter AM -meter 1 kω No.885-7/1

28 -.FM Muting Function Control (pin : soft muting) and Attenuation etting (pin 58) The - db limiting sensitivity can be adjusted by changing the value of R. The muting attenuation can be switched between three levels (-1, -, and - db) with R58. Output level Output level When R is small V When R is large R58:OPEN R58:K R58:K R58 Mute ATT OPEN 1 db K db K db 5.AM Block The adopts an upconversion method. 5-1.AM AGC ystem The RF AGC pickup operates according to the input level on pins 8 and 9. Pin 8: AGC based on the components in the 1.7 MHz CF band. Pin 9: Wideband AGC (The level at which the wideband AGC turns on can be adjusted with Rw.) (The seek mode wideband AGC on level is increased by 1 db.) AM AGC YTEM R W 1st MIX IF Amp. nd MIX IF Amp. 1.7 MHz CF 1.7 MHz 5 khz CF RF DET 1 1st OC X'tal 1 µf 9 Wide AGC IN Middle AGC IN IF AGC 5 1 µf ANT DUMPING RF AGC 56 7 µf. µf The RF AGC is picked up from two places. 1. The wideband AGC determined by RW.. Midband AGC picked up from the second mixer at pin 9. Operating bandwidth: 15 to 18 khz (the 1.7 MHz CF bandwidth) No.885-8/1

29 5-.AM D Pin (pin 9) and the AM D Adjustment Pin The compares V and the reference voltage V55 to operate D and the IF counter. -meter 5 µa Comparator AM IF IF Buff Amp. 5 pf kω 1 kω.7 µf 51 kω. µf 5 V EEK IF BUFER 5 V D VPIN V55 Larger values of R55 -meter V9 maller values of R55 VAC D ON OFF IF Buffer ON VDC 5V Pin 55: AM D adjustment pin V 5-.AM Wideband Cut and Detection Output Adjustment Methods The AM/FM detection output (pin 1) has an output impedance of 1 kω in AM mode, and an impedance of a few tens of ohms in FM mode. Therefore the AM detection output level is lowered by R1 and the AM wideband frequency characteristics are determined by C1. FM detector 1 R1 C1 AM detector VCC 1 kω Noise canceller input 5 kω No.885-9/1

30 5-.AM Low Region Cut Adjustment The AM low frequency region frequency characteristics can be adjusted with capacitor C, which is inserted between pin and ground. ince this capacitor is shared with the FM pilot detector, it is connected to ground. To prevent incorrect operation of the pilot detector, C must have a value of. µf or higher. 5 Detector Output f [db] AM detector 1 kω 1 kω 1 kω To 1PIN Pilot det C Output [db] C =.7u C = 1u Modulation frequency [khz] 6.Noise Canceller Block 6-1.The noise canceller input (pin ) has an input impedance of about 5 kω. The low band frequency characteristics require care when determining the value for the coupling capacitor. Note that fc will be about Hz in an application that uses a 1 µf capacitor. 6-. The noise detection sensitivity and the noise AGC are set with pins 8 and 9. Good settings can be acquired by first setting the medium field strength (corresponding to an antenna input of about 5 dbµ) sensitivity with the noise sensitivity setting pin (pin 8) and then setting the weak field ( to dbµ) with the AGC adjustment pin (pin 9). Note that if the noise detection sensitivity is increased, the effect of the AGC will be improved, but that inversely the weak field sensitivity will be decreased. The problem of incorrect operation of the noise canceller for 1 khz overmodulation occurs when an overmodulated signal is input and the noise canceller responds to that signal even though it should not. The cause of this is the IF detector output taking on the sort of waveform shown in the figure due to the band of the IF ceramic filter as shown below. (15 khz 1, 18 khz (r), f = 1 khz, 18 khz deviation) The noise canceller responds to the whisker components generated by this overmodulation, resulting in distortion of the audio output. (The whisker components due to the overmodulation are generated by the band of the ceramic filter in the tuner.) This can be prevented as follows. The incorrect operation due to the overmodulation can be eliminated by removing the whisker components due to the overmodulation as described above with the lowpass filter consisting of a 1 kω resistor and pf capacitor as shown in the figure. Note, however, that the FM separation characteristics in the high band and the AM frequency characteristics will change. H1 W1.5OU IF audio output f = 1 khz, 18 khz dev IF output Noise canceller input 1 kω 1 1 µf pf.5ou 19. µs 981. µs No.885-/1

31 7.Multiplex Block 7-1.Pilot Canceller The pin 18 pilot canceller signal waveform is a 19 khz signal in which the third harmonic is not present. ince this signal has the same phase as the pilot signal, no capacitor is required between pin 18 and ground. ince the third harmonic is not present, excellent pilot cancellation in both the left and right channels can be acquired by adjusting the circuit with a variable resistor. Noise canceller input To the multiplexer GATE PILOT CANCEL pf.1 µf 5 kω 7-.eparation Adjustment (pin 19) 5 kω To the subdecoder 19 Larger kω.7 µf C The separation is adjusted by adjusting the sub-decoder input level with the pin 19 variable resistor VR. Adjusting VR only changes the sub-channel modulation. It does not change the monaural (main) output level. Degradation of high band separation in the decoder can be avoided if the impedance of the external capacitor value (C) is made enough smaller than the impedance of VR in the sub-channel signal frequency band ( to 5 khz). 8. MRC Block 7 µa FM/AM Vsm 5.5 kω 5.5 kω FM Vsm 1 kω 1 kω DC BUFFER kω MRC 1 Ω HPF: C6, K LPF: C Gain: R6 6 7 C6. µf C C R6 C7. µf 1 pf 1 kω 51 kω *: When the AC component is removed with C. No.885-1/1

32 8-1.The -meter DC input voltage is set by the variable resistor R1 connected to pin. While it is often said that a curve such as that shown in figure 59 is ideal for separation control when multipath interference occurs, if the pin voltage is too high, separation control in strong field reception, as shown in figure 6, will become impossible. Thus it is desirable to adjust the circuit so that the pin voltage remains under V when saturated. ACø% EP (db) AC % AC 6% AC 1% EP (db) AC % ACø% AC 6% AC 1% Field strength Field strength 8-. The time constant with which the MRC circuit controls the separation is determined by an internal 1 Ω resistor and C during charge and by a constant current of 7 µa and C during discharge. 7 µf C 1 1 Ω No.885-/1

33 Crystal Oscillator Element Kinseki, Ltd. Frequency: 1.6 MHz CL: pf Model No.: HC-9/U- Coil pecifications umida Electronics, Ltd. [AM Block] AM FILTER (A-151) 1 AM OC (A-59) 6 AM IF1 (A-6) 1 6 AM IF (A-16) 1 6 AM loading (A-16) 1 6 AM ANT IN (A-18) 1 6 AM RF amplifier (RC875-J) 1 6.1øUEW [FM Block] FM RF (A-16) 1 6 FM OC (A-15) 1 6 FM DET (A-8) FM ANT (A-161) 1 6 FM MIX (A-66) C C No.885-/1

34 The Toko Electric Corporation [AM Block] AM FILTER (A861BI-157) AM OC (V666N-1BY) 1 6 AM IF1 (7PGTC-51A) 1 6.1øUEW AM IF (7PGTC-5Y) 1 6.5øUEW AM loading (69AN-7Z) 1 6.5øUEW AM RF amplifier (187LY-) 1 6.5øUEW AM ANT IN (85BN-7Z) 1 6.1øUEW [FM Block] FM RF (V666N-8AQ) FM ANT (V666N-9B) ø.1 UEW 1 6 FM OC (V666N-5APZ) ø.1 UEW 1 6 FM MIX (71DH-118FYH) ø.1 UEW ø.7 UEW FM DET (DM6DEA-87GLF) 1 6.7øMUEW No.885-/1

35 agami Elec Co., Ltd. [AM Block] AM FILTER (155) 1 6 AM OC (156) µh AM IF1 (157) AM IF (159) 18 pf 18 pf 1 6 AM loading (161) 1 6 AM ANT IN (16) mh 1 µh 1 6 AM RF amplifier (16) 1 6. mh [FM Block] FM RF (16) FM ANT (165) 15.5 nh FM OC (166) FM MIX (167) 1-:1 pf 6.7 nh 5 -:1 pf 1 6 FM DET (1175) : µh -:1 pf No.885-5/1

36 Output db FM Input/Output Characteristics Vsm AMR(1K,%) N 7 Total harmonic distortion, THD % -meter voltage, Vsm V Total harmonic distortion, THD % -meter voltage, Vsm V FM Input/Output Characteristics RF AGC ANT D THD (1%) THD (%) Field strength db µ Field strength db µ 1 FM eparation Input/Output Characteristics 1 AM Input/Output Characteristics 8 7 eparation, ep db Vsnc V EP(R) EP(L) Vsnc 1 Output db Vsm N 6 5 -meter voltage, Vsm V AGC V Total harmonic distortion, THD % Field strength db µ Field strength db µ 1 AM Input/Output Characteristics THD (8%) RF AGC THD (%) ANT D AM Two-ignal Interference uppression Characteristics ( khz) Output db Field strength db µ k 5 7 1k Frequency, fm Hz 1 AM Frequency Characteristics THD (%) output THD (8%) AM Two-ignal Interference uppression Characteristics ( khz) Total harmonic distortion, THD % -1 ( dbµ) (8 dbµ) (6 dbµ) -1 ( dbµ) (8 dbµ) (6 dbµ) N ( dbµ) - N( dbµ) - N (6 dbµ) -5 N (6 dbµ) N (8 dbµ) N (8 dbµ) fu input level dbµ - N(6 dbµ) -5 N(6 dbµ) N(8 dbµ) -6 N(8 dbµ) fud input level dbµ No.885-6/1

37 8 5 output 7 /N Output mv rms db L. db 6 AMR (8 db) 5 5 AMR (5 db) Ambient temperature, Ta ºC Ambient temperature, Ta ºC Ambient temperature, Ta ºC 1 db (mute on) db (mute off) Q.., U.., Noise convergence dbµ, db /N, AMR db Q. (/N = 5) Noise convergence 1 U. (/N = ) Ambient temperature, Ta ºC 5 N-AGC, W-AGC on level dbµ W-AGC N-AGC eparation, ep db 1 EP (5 dbµ) EP (8 dbµ) Ambient temperature, Ta ºC Ambient temperature, Ta ºC Total harmonic distortion, THD % 1 THD (mono) THD (main) Vafc,Vref V Vref Vafc Ambient temperature, Ta ºC Ambient temperature, Ta ºC No.885-7/1

38 Vnull V D bandwidth khz ignal-to-noise ratio with IF beating db Vnull D bandwidth Ambient temperature, Ta ºC Ambient temperature, Ta ºC 8 D bandwidth () D bandwidth ( ) Ambient temperature, Ta ºC MHz beating worst case Vsm ( dbµ) 5 Vsm ( dbµ) Ambient temperature, Ta ºC Ambient temperature, Ta ºC 17 MHz beating worst case D on level dbµ D bandwidth khz -meter voltage, Vsm V D on level Ambient temperature, Ta ºC 6 Vsm (8 dbµ) 5 Vsm (7 dbµ) Vsm (6 dbµ) Vsm (5 dbµ) 5 output 7 /N AMR (6 dbµ) output mvrms /N, AMR db Ambient temperature, Ta ºC Ambient temperature, Ta ºC No.885-8/1

39 8 6 7 T /N (15 khz) 5 T /N db N-AGC on LEVEL dbµ 6 T /N (OFF) 5 db (mute on) Ambient temperature, Ta ºC Ambient temperature, Ta ºC 9 85 N-AGC on 8 75 D on LEVEL dbµ db L. dbµ D on level Ambient temperature, Ta ºC Ambient temperature, Ta ºC 6 Total harmonic distortion, THD % -meter voltage, Vsm V 1 THD (mono) 1 THD (main) Ambient temperature, Ta ºC Ambient temperature, Ta ºC 6 Vsm (8 dbµ) Vsm (7 dbµ) Vsm (6 dbµ) Vsm (5 dbµ) Vsm ( dbµ) Vsm ( dbµ) Vsm (9 dbµ) IF count BUFF LEVEL mvrms 5 IF count buff Ambient temperature, Ta ºC No.885-9/1

40 7 AM Temperature Characteristics AM Temperature Characteristics /N, AGC FOM db Vsm V Ambient temperature, Ta ºC Ambient temperature, Ta ºC /N AGC FOM AM Temperature Characteristics Vsm (7 dbµ) Vsm (1 dbµ) Vsm ( dbµ) Vsm ( dbµ) N-AGC, W-AGC on LEVEL dbµ Practical sensitivity dbµ, D on dbµ 5 5 D Practical sensitivity AM Temperature Characteristics 6 W-AGC 55 W-AGC (EEK) 5 N-AGC Ambient temperature, Ta ºC 5 AM Temperature Characteristics Ambient temperature, Ta ºC AM Temperature Characteristics Total harmonic distortion, THD % 1 THD (1 k, 8 %) THD (.1 k, 8 %) THD (.1 k, %) AM LC (1 Hz) db Hz attenuation - THD (1 k, %) Ambient temperature, Ta ºC Ambient temperature, Ta ºC No.885-/1

41 pecifications of any and all ANYO products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment. ANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. uch measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all ANYO products(including technical data,services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of ANYO Electric Co., Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery pecification" for the ANYO product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only ; it is not guaranteed for volume production. ANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of July, 5. pecifications and information herein are subject to change without notice. P No.885-1/1