TA2149BNG,TA2149BFNG

Transcription

1 TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA249BNG,TA249BFNG TA249BNG/BFNG V / Chip Tuner IC (for Digital Tuning System) TA249BNG, TA249BFNG are / chip tuner ICs, which are designed for portable Radios and V Head phone Radios. This is suitable for Digital Tuning System Applications. Local Oscillation Voltage is set up low relativity, for NEW FCC. TA249BNG Functions For NEW FCC. Suitable for combination with Digital Tuning System which is included IF Counter. Adjustable for IF count output sensitivity by external resistance of pin 7 ( only). One terminal type / IF count output for IF counter of Digital Tuning System. :.75 MHz (/ dividing) : 450 khz Built-in Mute Circuit for IF count output. For adopting ceramic Discriminator, it is not necessary to adjust the Quad Detector Circuit. Built-in MPX VCO circuit. Built-in one terminal type / Local Oscillator Buffer Output for Digital Tuning System Applications. Built-in /6 Pre-scaler for Local OSC Buffer. Built-in Low cut circuit. Low supply current. (VCC = V, Ta = 25 C) ICCq () = ma (Typ.) ICCq () =.5 ma (Typ.) Operating Supply voltage range: VCC =.~7 V (Ta = 25 C) TA249BFNG Weight SDIP24-P-00-.7:.2 g (Typ.) SSOP24-P A: 0.4 g (Typ.) Note : Handle with care to prevent devices from deteriorations by static electricity.

2 Block Diagram H: MONO L: ST H: L: V T OSC BUFF OUT PSC SW IF OUT OPEN: / : /6 IF REQ RF OSC ST IF DET MPX RFout RFin OSC OSC OUT LED REQ OUT IN LPF LPF OSC OSC BUFF BUFF / or /6 LEVEL DET ST SW IF BUFF / IF REQ AF BUFF AF VCO DIVIDE DECODE MIX DET DET SM/MO / RF MIX IF IF AGC MUTE RF ANTENNA MIX V RFin LOW CC IF IF AGC QUAD R-OUT L-OUT OUT IN IN CUT BFP R-OUT L-OUT 2

3 Explanation of Terminals (Terminal Voltage: Typical terminal voltage at no signal with test circuit, = V, Ta = 25 C) TA249BNG/BFNG PIN No. Characteristic RF ( for RF stage) Internal Circuit Terminal Voltage (Typ.) (V) RFin RF 22 kω DET LOW CUT.0 22 kω 5 4 MIX 4 MIX OUT.0.0 MIX RF 5 ( for, IF, MPX).0.0 kω kω kω 60 pf 6 6 IF IN

4 PIN No. Characteristic Internal Circuit Terminal Voltage (Typ.) (V) 5 0 Ω 7 IF IN ( for, IF, MPX) kω 9 AGC kω QUAD R-OUT L-OUT / kω 4

5 PIN No. Characteristic Internal Circuit Terminal Voltage (Typ.) (V) LPF2 LPF terminal for phase detector Bias terminal / SW circuit V = V = OPEN / SW LPF LPF terminal for synchronous detector VCO stop terminal V 4 = VCO STOP 4 DC P kω 5 5 MPX IN DET OUT 750 Ω a b a b LOW, HIGH LOW, HIGH 5

6 PIN No. Characteristic Internal Circuit Terminal Voltage (Typ.) (V) 5 7 IF REQ 7 9 khz ST LED RF Ω 9 OSC OUT PSC SW RF OSC RF 2 2 OSC.0.0 6

7 PIN No. Characteristic Internal Circuit Terminal Voltage (Typ.) (V) 5 AGC 22 RFin RF ( for RF stage) RFout cf. pin.0.0 7

8 Application Note. Low-Cut Circuit The Low-Cut action is carried out by the bypass of the high frequency component of the positive-feedback signal at the AF P stage. The external capacitor: C by-pass this component. The cut-off frequency fl is determined by the internal resistance 22 kω (Typ.) and the external capacitor C as following; f L = (Hz) 2 π 22 0 C In the case of the Low-Cut function is not needed, set up the value of C over µf. In the condition of C > = µf, the frequency characteristic has flat response at the low frequency. It is possible to reduce the recovered output level at mode, by additional resistance between the pin and line. 2. Detection Circuit For the detection circuit, detection coil is able to use instead of ceramic discriminator. Recommended circuit and recommended coil are as follows. (In this case, please take care that Vin (lim.) falls a little.) 22 kω 22 kω R C P Pin Test Frequency Co (pf) Qo Turns Wire (mmφ) 0.7 MHz UEW Reference Toko Co., Ltd. 600BEAS-00Z. / switch and forced monaural switch. / switchover and stereo/forced monaural switchover are done by pin and pin 4. / switch (pin ) V: Low (Active Low, Vth = 0.2 V (Typ.), Ith 0 µa (Typ.) V: OPEN Stereo/forced monaural switch (pin 4) V4: Low (Active Low, Vth = 0.2 V (Typ.), Ith 0 µa (Typ.) Forced Monaural V4: OPEN Stereo V CE (sat) V CE (sat) 4

9 4. Line TA249BNG/BFNG This ICs have two voltage supply terminals, VCC (for, IF, MPX stage) and RF VCC (for RF stage). Set up the potential difference between VCC and RF VCC 0.4 V (typ.) or less, otherwise there is the case that this IC doesn t operate normally. 5. How to control the Divider of OSC. R RF OSC OSC buff buff / or /6 9 SW buff out Divider of OSC ON/OFF switching is controlled by external pull-up resistor of pin 9. In case of Divider of OSC is used, it is necessary to set up the value of R under 470 Ω (typ.). When R is over 470 Ω, it is feared that Divider is not operating. (At this time, buffer output frequency is equal to OSC frequency.) Which ever Divider of OSC is used or not, OSC buffer frequency and output level is same. Mode SW Output Frequency Output Level (Typ.) OPEN / OSC 5 mvrms ON /6 OSC 0 mvrms OPNE / OSC 75 mvrms ON 6. How to adjust the IF Count Output Sensitivity IF count output sensitivity can be adjusted by changing the value of external resistance at pin 7. This ICs have IF signal level detector in pin 9. When DC voltage of pin 9 is high than threshold, IF count output signal come out from the pin 7. And this threshold is controlled by value of external resistance at pin 9. IF count output sensitivity IF sens () VCC = V 5 f = 0.7 MHz f = 75 MHz VIF () IF sens () IF count output voltage VIF () mvp-p External resistance of pin-7 (kω) 9

10 Absolute Maximum Ratings (Ta = 25 C) Characteristics Symbol Rating Unit Supply voltage V LED current ILED 0 ma LED voltage VLED V Power dissipation TA249BNG P D 200 TA249BFNG (Note 2) 500 Operating temperature T opr 25~75 C Storage temperature T stg 55~50 C Note 2: Derated above Ta = 25 C in the proportion of 9.6 mw/ C for TA249BNG of 4 mw/ C for TA249BFNG. mw Electrical Characteristics (Unless otherwise specified, Ta = 25 C, = V, F/E: f = 9 MHz, f m = khz IF: f = 0.7 MHz, f = ±75 khz, f m = khz : f = MHz, MOD = 0%, f m = khz MPX: f m = khz) Supply current F/E IF Characteristic Symbol Test Circuit Input limiting voltage V in (lim) Local OSC buffer output voltage Local OSC buffer output voltage 2 Test Condition Min Typ. Max Unit I CC () V in = 0, mode 6.5 I CC () V in = 0, mode.5.0 V OSC (buff) V OSC (buff) 2 Input limiting voltage V in (lim) IF V in = 60dBµV EMF, db limiting ma 0 dbµv EMF f OSC = 0.7 MHz 2 5 mvrms f OSC = MHz SW: ON V in = 0dBµV EMF, db limiting 75 0 mvrms dbµv EMF Recovered output voltage V OD V in = 0dBµV EMF mvrms Signal to noise ratio S/N V in = 0dBµV EMF 75 db Total harmonic distortion THD V in = 0dBµV EMF 0. % rejection ration R V in = 0dBµV EMF 60 db IF count output frequency f IF () V in = 0dBµV EMF, SW7: ON MHz IF count output voltage V IF () V in = 0dBµV EMF, SW7: ON mv p-p IF count output sensitivity IF sens () SW7: ON dbµv EMF Gain G V V in = 27dBµV EMF mvrms Recovered output voltage V OD V in = 60dBµV EMF mvrms Signal to noise ratio S/N V in = 60dBµV EMF 4 db Total harmonic distortion THD V in = 60dBµV EMF 0.7 % Local OSC buffer output voltage V OSC (buff) f OSC =.45 MHz mvrms IF count output voltage V IF () V in = 60dBµV EMF SW7: ON mv p-p IF count output sensitivity IF sens () Pin 7 output resistance R 7 SW7: ON 4 dbµv EMF mode 0.75 kω mode 5.5 0

11 MPX Characteristic Symbol Test Circuit TA249BNG/BFNG Test Condition Min Typ. Max Unit Input resistance R IN 55 kω Output resistance R OUT 5 kω Max. composite signal input voltage V in MAX (Stereo) Separation Sep. Total harmonic distortion Monaural Stereo THD (Monaural) THD (Stereo) L + R = 90%, P = 0%, SW: LPF ON f m = khz, THD = % 700 mvrms L + R = f m = 00 Hz 45 0 mvrms, P = 20 mvrms f m = khz 5 45 SW: LPF ON f m = 0 khz 45 V in = 200 mvrms 0. L+R = 0 mvrms, P = 20 mvrms, SW: LPF ON 0. Voltage gain G V V in = 200 mvrms db Channel balance C.B. V in = 200 mvrms db Stereo LED sensitivity ON V L (ON) Pilot input (9 khz) 0 4 OFF V L (OFF) 5 Stereo LED hysteresis V H To LED turn off from LED turn on db % mvrms 2 mvrms Capture range C.R. P = 5 mvrms ± % Signal noise ratio S/N V in = 200 mvrms 0 db Muting attenuation MUTE V in = 200 mvrms 0 db Coil Data Coil No. Test Freq. L (µh) Co (pf) L RF 00 MHz 79 Qo Turns Wire (mmφ) 2 0.6UEW 2 L 2 OSC 00 MHz UEW T OSC 796 khz UEW T 2 IFT 455 khz UEW Reference Toko Co., Ltd. 666SNF-05NK Toko Co., Ltd. 666SNF-06NK Toko Co., Ltd. 5PNR-546Y Toko Co., Ltd. 5PLG-547X L : RF L 2 : OSC T : OSC T 2 : IFT Pin 20 C.F. C.F Pin 4

12 Test Circuit V DD = V 2.2 µf 0 kω 0 kω 2SC5 5 V 2.4 kω DET OUT Vin -RF IN 2 kω µf 75 Ω 75 Ω V T OSC OUT 400 Ω 0.0 µf 0.0 µf 00 kω 00 kω kω 2SC92 IF OUT 2.2 kω µf 0 µf MPX IN 47 kω SV0 L 2.7 mh 47 kω SV0 T L 2 SV49 47 kω SW 470 Ω 560 Ω. kω 0 pf 0. µf µf. kω 0. µf 220 µf 00 pf 000 pf 470 pf SW 7 SW 5 SW RFout RF RFin OSC OSC 9 OSC OUT ST LED IF REQ DET OUT MPX IN LPF LPF2 TA249BNG/BFNG RF LOW RFin CUT MIX OUT IF IN IF IN AGC QUAD R-OUT L-OUT µf 0.0 µf 4.7 µf SW 2 T 2 CF CF 2 CR 0.0 µf µf 0.0 µf SW 0 Ω BPF -RF IN -IF IN 270 Ω SW LPF 4.7 kω Vin 75 Ω Vin 50 Ω BPF : GFWB (Soshin Electric Co., Ltd.) CF : SFU450B (Murata Co., Ltd.) CF 2 : SFE0.7MA5 (Murata Co., Ltd.) CR : CDALA0M7GA00A-B0 (Murata Co., Ltd.) 2

13 Package Dimensions Weight:.2 g (typ.)

14 Package Dimensions Weight: 0.4 g (typ.) 4

15 RESTRICTIONS ON PRODUCT USE 0606EBA The information contained herein is subject to change without notice. 0202_D TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the Handling Guide for Semiconductor Devices, or TOSHIBA Semiconductor Reliability Handbook etc. 0202_A The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ( Unintended Usage ). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer s own risk. 0202_B The products described in this document shall not be used or embedded to any downstream products of which manufacture, use and/or sale are prohibited under any applicable laws and regulations _Q The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of TOSHIBA or others. 0202_C The products described in this document are subject to the foreign exchange and foreign trade laws. 0202_E About solderability, following conditions were confirmed Solderability () Use of Sn-7Pb solder Bath solder bath temperature = 20 C dipping time = 5 seconds the number of times = once use of R-type flux (2) Use of Sn-.0Ag-0.5Cu solder Bath solder bath temperature = 245 C dipping time = 5 seconds the number of times = once use of R-type flux 5