LA1265. Specifications. Monolithic Linear IC FM/AM Tuner of Electronic Tuning Type. Maximum Ratings at Ta = 25 C, See specified Test Circuit.

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1 Ordering number : EN8D LA65 Monolithic Linear IC FM/AM Tuner of Electronic Tuning Type Features Minimum number of external parts required. Excellent S/N. Local OSC with ALC. Local OSC buffer. Tuning indicator pin (common with narrow-band stop signal and muting drive output). Variable stop sensitivity (variable separately for FM, AM) Low whistle. Signal meter pin. Functions FM : IF amplifier, quadrature detector, AF preamplifier, signal meter, tuning indicator drive output (common with stop signal, muting drive output). AM : RF amplifier, MIX, OSC (with ALC), IF amplifier, detector, AGC, signal meter, tuning indicator drive output (common with stop signal). Specifications Maximum Ratings at Ta = 5 C, See specified Test Circuit. Parameter Symbol Conditions Ratings Unit Maximum supply voltage V CC max Pins 7, 8, 7 6 V Flow-in current I 8 Pin 8 ma Flow-out current I Pin ma I Pin ma Allowable power dissipation Pd max Ta 6 C 65 mw Operating temperature Topr to +7 C Storage temperature Tstg to +5 C Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. 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. 58 MS JK/N897HA (KT)/9HK/O77KI/D95KI/55KI, TS No.8-/5

2 LA65 Operating Conditions at Ta = 5 C Parameter Symbol Conditions Ratings Unit Recommended operating voltage V CC 8.5 V Operating voltage range V CC op 6 to V Electrical Characteristics at Ta = 5 C, VCC = 8.5V, See specified Test Circuit Ratings Parameter Symbol Conditions min typ max Unit AM : f = MHz Quiescent current I CCO No input 8 6 ma Detection output V O V IN = dbμ, Hz, % mod. 5 9 mv V O V IN = 8dBμ, Hz, % mod. 6 mv S/N S/N V IN = dbμ 6 db S/N V IN = 8dBμ 9 5 db Total harmonic distortion THD V IN = 8dBμ, Hz, % mod... % THD V IN = 7dBμ, Hz, % mod..5. % Signal meter output V SM No input. V V SM V IN = 8dBμ..8. V LED lighting sensitivity VLED on I LED = ma 5 dbμ Local OSC buffer output V OSC f OSC =.5MHz 75 mv FM : f =.7MHz Quiescent current I CCO No input 8 ma Input limiting sensitivity dbl.s. db down, Hz, % mod. 7 dbμ Demodulation output V O V IN = dbμ, Hz, % mod. 6 mv S/N S/N V IN = dbμ 78 8 db Total harmonic distortion THD V IN = % dbμ, Hz, % mod... % Signal meter output V SM No input. V V SM V IN = dbμ.5.7. V LED lighting sensitivity LED-on I LED = ma dbμ LED lighting bandwidth LED-BW V IN = db, I LED = ma 9 6 khz AM rejection ratio AMR V IN = dbμ, FM = Hz % mod. AM = khz % mod. 5 6 db No. 8- /5

3 LA65 Package Dimensions unit : mm (typ) 59A Block Diagram No. 8- /5

4 LA65 How to use the LA65. LED lighting, muting drive output, stop signal (SD). For LED lighting, muting drive output, stop signal, the output at pin 8 is used. The voltage on pin 8, when tuned, turns from "H" to "L". (Active-Low) Signal bandwidth at pin 8. For AM, the bandwidth depends on the CF (BFU5CN) at pin. If a capacitor is connected in place of the CF, the bandwidth will get wider. For FM, the bandwidth depends on the resistance across pins 9 and. If the resistance is increased, the bandwidth will get narrower. R = 5kΩ makes the bandwidth approximately khz. Sensitivity adjustment of LED, muting, stop signal. For FM, the semifixed variable resistor across pin and GND is used. For AM, the semifixed variable resistor across pins and is used. Be sure to start adjustment for FM, and then make adjustment for AM. For the stop signal sensitivity and FM stop signal bandwidth, the variations should be considered and it is recommended to use the semifixed variable resistor for adjustment. LED lighting sensitivity setting for AM. For the LED lighting sensitivity setting for AM, it is desirable that the IC input be dbμ (antenna input : approximately 5dB/m). In this case, the value of VR is kω. LED lighting sensitivity setting for FM. For the LED lighting sensitivity setting for FM, the IC input may be 5dBμ to 6dBμ. With the variations in the front end considered, it is ideal that the IC input in a standard receiving set be 5dBμ to 5dBμ. The lower value of VR for the LED lighting sensitivity setting is as illustrated right. Since the variations in the front end cause the IC input setting sensitivity to vary, it is recommended to use a value of VR at an input voltage lower than a standard setting by 6dB or greater. For example, if IC input 5dBμ is taken as a standard, use VR kω at IC input 7dBμ.. AM/ FM changeover Two selections are available for changeover as shown below : (A) pin 7-used method and (B) pin 8-used method. For (A), the voltage on pin 7 relative to V CC (pin 7) must be within the range of.8v to +.V. If not within this range, distortion and selectivity will get worse. For (A), a resistance of 68kΩ at the IFT cold terminal, which is used to prevent the changeover circuit from malfunctioning, must be connected. (A) pin 7-use method for AM/FM changeover (B) Pin 8-used method for AM/FM changeover No. 8- /5

5 LA65. Local OSC buffer output When local OSC buffer output wave form is saw-toothed at the SW mode, connect a resistance of.kω or thereabouts across pin and GND.. AM input pin It is desirable that the AM input pin (pin 9) be L-coupled to pin 8. Inputting to pin 9 can be done by DC-cutting with a capacitor. However, an unbalance in the RF amplifier (differential amplifier) causes gain drop and whistle worsening. 5. Capacitance across pin 9 and GND. A large capacitance across pin 9 and GND may cause a misstop at an adjacent channel when the channel select speed is made faster at the automatic channel select mode. In this case, decrease the capacitance across pin 9 and GND. However, if too decreased, the LED will flutter at low modulation frequencies at the time of detuning. Therefore, it is recommended to fix the capacitance across pin 9 and GND to be.μf to μf. The relation between modulation frequency and demodulation output voltage on pin 9 with the capacitance across pin 9 and GND as a parameter is shown right. 6. If the coupling coefficient of the local OSC coil is small and an antiresonance point of approximately MHz is present or the stray capacitance across pins and is large, a parasitic oscillation of approximately MHz may occur in the buffer output (pin ). In this case, connect a capacitance of approximately pf across pin and GND. 7. AM OSC coil Generally speaking, the following should be noted. Avoid winding with loose coupling between primary side and secondary side (especially SW, SW). To put it concretely, the pot core type is better than the screw core type which is loose in coupling. This prevents the local OSC frequency from turning third resonance frequency related to the coupling coefficient. 8. Resistance across pin 8 and V DD. If pin 8 is used for the stop signal (SD) only, without using LED, it is recommended to fix resistance R L across pin 8 and GND to be 5kΩ to kω. 9. To prevent whistle from worsening, make the pattern of AM output pin as short as possible. Input/Output Admittance FM Parameter Frequency Admittance Unit IF γi.7mhz r i Ω c i pf AM Admittance Parameter Frequency AGC-off (V6 =.V) AGC-on (V6 =.5V) Unit RF γi9 MHz r i 5 6 kω c i pf MIX γo7 5kHz r o kω c o pf IF γi5 5kHz r i kω c o 8 pf No. 8-5/5

6 LA65 Test Circuit : FM, AM-MW Detection output, Noise voltage dbm Signal meter current, I SM ma FM Input/Output Characteristics Detection output Hz-75kHz dev. AM output khz-%mod -8 Noise voltage f =.7MHz IF input voltage dbμ JK65 FM Signal Meter Current Characteristic. VCC = 8.5V Non-modulation See test circuit... LED-on Total harmonic distortion, THD % Signal meter voltage, VSM V 5 THD -- VINIF f =.7kHz THD Hz-75kHz dev. 6 8 IF input voltage dbμ JK65 FM Signal Meter Voltage Characteristic. VCC = 8.5V Non-modulation.5 See test circuit LED-on 6 8 IF input voltage dbμ JK IF input voltage dbμ JK65 No. 8-6/5

7 LA65 Sensitivity db/m Interference db Signal meter voltage, VSM V Noise voltage, Detection output dbm MW Input/Output Characteristics VCC = 8.5V MHz reception Mod. Hz, % AM Signal Meter Voltage Characteristic VCC = 8.5V Non-modulation See test circuit. MW Reception Characteristic Image interference MW Detuning Characteristic Hz-% mod fo = MHz Tracking adjust at each frequency IF interference Detection output Hz-% THD Hz-% THD Hz-8% LED-on - -6 Noise voltage 6 8 Antenna input voltage dbm JK Antenna input voltage dbm JK656 Usable sensitivity (Hz-% mod., S/N = db) Max. sensitivity (Hz-%mod., detection output mv) Receiving frequency, fr -- khz JK658 Attenuation db Signal meter current, ISM ma Antenna input voltage dbm JK MHz reception db/m input % mod MW Fidelity Characteristics Attenuation Distortion k 5 Modulation frequency Hz JK657 Selectivity Characteristic Attenuation db Output 5mV const. IFT HW-7 SFZ5B (MHz) Frequency deviation, Δf -- khz JK659 AM Signal Meter Current Characteristic VCC = 8.5V Non-modulation See test circuit. LED-on Spurious Characteristic Hz-% mod Reception : khz 6 5 Total harmonic distortion, THD % Detection output dbm dbm Total harmonic distortion, THD % 5dBm 8dBm Response db Frequency deviation, Δf -- Hz JK65-7 M 5 7 M 5 Frequency, f -- Hz JK65 No. 8-7/5

8 LA65 VOSC -- VCC VOSC -- fr VCC = 8.5V Local OSC buffer output, VOSC mv V OSC fosc =.5MHz Local OSC buffer output, VOSC mv VOSC Current drain, ICC ma Supply voltage, VCC V JK65 FM Current Drain Characteristic f =.7MHz I CC (including no LED current) Current drain, ICC ma Receiving frequency, fr khz JK AM Current Drain Characteristic ICC (including no LED current) f = MHz Detection output dbm Noise voltage, VN dbm Sensitivity dbμ S meter voltage, VSM V IF input voltage dbμ JK65 FM Temperature Characteristics VN input dbμ THD input dbμ Hz-% mod VSM input dbμ VSM input 5dBμ VSM no input LED lighting sensitivity I LED = ma f =.7MHz Detection output Input dbμ Hz-% mod db limiting sensitivity Hz-% mod LED-BW input dbμ, ILED = ma Ambient temperature, Ta C JK656 Total harmonic distortion, THD % 5 Bandwidth, LED-BW khz Total harmonic distortion,thd % Noise voltage, VN dbm Detection output dbm Sensitivity dbμ Antenna input voltage dbm JK655 AM Temperature Characteristics THD input 8dBμ Hz-% mod VSM input 8dBμ VSM input dbμ VN input 8dBμ VSM no input LED lighting sensitivity ILED = ma S/N = db sensitivity Hz-% mod. Output mv sensitivity Hz-% mod f = MHz Ambient temperature, Ta C JK S meter voltage, V SM V No. 8-8/5

9 LA65 No. 8-9/5

10 LA65 Test Circuit : SW Noise voltage, Detection output dbm Noise voltage, Detection output dbm SW Input/Output Characteristics Noise voltage Detection output Hz-% Detection output Hz-% IEC input voltage dbμ SW Input/Output Characteristics Detection output Hz-% Noise voltage THD Hz-% IEC input voltage dbμ f = 8.5MHz JK65 f = MHz JK65 Total harmonic distortion, THD % Total harmonic distortion, THD % Noise voltage, Detection output dbm Spurious db SW Input/Output Characteristics Noise voltage Detection output Hz-% THD Hz-% IEC input voltage dbμ f = MHz 8.5MHz Spurious Characteristics Receiving frequency Image frequency Frequency, f -- MHz JK65 Referenced to output dbm JK65 Total harmonic distortion, THD % No. 8- /5

11 LA65 Image interference db Sensitivity dbμ 7 Usable Hz -- % mod sensitivity Image sensitivity S/N = db Max. sensitivity Input at detection output mv 5 Receiving frequency, f r MHz JK655 Spurious db to 9.MHz Spurious Characteristics Receiving frequency f f f f Referenced to output dbm f5 f6 f7 f8 Image frequency Receiving frequency, f r MHz JK656 f : 8.7MHz fosc-f = 55kHz f : 8.799MHz fosc-f = 55kHz f : 8.86MHz fosc-f = 55kHz f : 8.859MHz 5fOSC-5f = 55kHz f5 : 9.8MHz 5f5-5fOSC = 55kHz f6 : 9.6MHz f6-fosc = 55kHz f7 : 9.98MHz f7-fosc = 55kHz f8 : 9.7MHz f8-fosc = 55kHz Coil Specifications MW antenna Bar antenna (for PVCKTL) TN-896 (Mitsumi) Loop antenna (for SVC) LA (Korin Giken) Loop antenna matching coil KT- MW OSC (Sumida) For PVCKTL KO-87 (Korin Giken) For SVC No. 8- /5

12 AM-IFT Matching coil for SFU5B (-element type) LA65 S 6 S HW-7 (Mitsumi) - 8T, - 7T - 6 7T Q O = ±%, f = 5kHz Internal 8pF (Sumida) - T, - 7T - 6 8T Q O 8, f = 5kHz Internal 8pF Matching coil for SFZ5B (-element type) FM single tuning detection coil FM double tuning detection coil HW- HW No. 8- /5

13 LA65 Sample Application Circuit : LA86N+LA65 (US Band) B.P.F FM + AM 68kΩ C6 μf R8 C 7pF V CC = 8.5V VD VR CF T C.7μF C.μF.7μF 7pF R9 T T.μF C7 kω C7 TC C μf C9 C9 μf.7μf C C8 R5 R6 R7 VT (V~).5μF C6 VR LA R C kω R.7μF CF.7μF C.μF.7μF C 5Ω pf C T R 5Ω R5 CF pf C8 5Ω R6 kω pf pf L pf C 5kΩ VR LA86N FM output C5 8Ω R.μF pf R kω C T5a S.D. CF C T5b.kΩ V DD R VT (V~).μF S meter output.kω kω BL-7 kω OCS-Buffer 68kΩ.μF C C5 R 7Ω kω R R 8kΩ R9 56Ω R7 5Ω C pf C7 pf C9 VD C TC L 6pF SC999 Ω C pf C6 R R8 MΩ C6 C pf C5 SKE OCS-Buffer C kω R AM output pf C5 Ω R pf R VD kω R pf pf pf : : : : : : Loop antenna C8 pf kω + VD.7μF BL-7 YT- (Mitsumi) KL (Korin) KO87 (Korin) HW-7 (Mitsumi), (Sumida) HW- (Mitsumi), -96 (Sumida) HW-9 (Mitsumi), -97 (Sumida) T T T T T5a T5b B.P.F SNY- (Sumida) V D, V D = SVC V D, V D = SVC TC = pf TC = pf CF, CF = SFE.7MA CF = SFZ5B (Murata) CF = BFU5CN (Murata) L : YT-96 (Mitsumi), 78-7 (Sumida) L : HW5 (Mitsumi), 67- (Sumida) No. 8- /5

14 Sample Printed Circuit Pattern (Cu-foiled area) LA65 R8 AM V CC FM V CC C7 VR CF T C9 C6 R5 C5 SD VR R6 CF + C C6 C C8 + C7 LA65 R R9 C C R R + T5a T5b R C + C C C C CF R C5 BCE R C R R9 R CF C5 R5 R C C6 R R5 R7 T C8 C D S G FET C L 9 C R8 BL-7 LA86N R C9 VD C7 R C6 TC VD C C L C5 C R BPF C V CC 8.5V AM buffer FM buffer FM VT (V~) AM VT (V~) 85 55mm No. 8- /5

15 LA65 SANYO Semiconductor Co.,Ltd. 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 SANYO Semiconductor Co.,Ltd. products described or contained herein. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such 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 SANYO Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require 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 consent of SANYO Semiconductor 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 Specification" for the SANYO Semiconductor Co.,Ltd. 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. Upon using the technical information or products described herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of May, 8. Specifications and information herein are subject to change without notice. PS No. 8-5/5