cxa1737r Sony Electronics, cxa1737r Datasheet
cxa1737r
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cxa1737r Summary of contents
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... AFM Stereo Signal Processor for 8 mm VCR Description The CXA1737R is a bipolar IC designed as an AFM stereo signal processor for 8mm VCR. All functions necessary for AFM stereo are concentrated onto a single 64-pin LQFP. Features • Low supply voltage (3.15V) design • Low power consumption (Vcc = 3.15V) ...
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... LPEMP MUTE PB LP REC PB REC PB REC DEC OUT DEC IN LPF NR R LPF ENC OUT ENC – 2 – CXA1737R 1.5MHz 32 MATRIX CTL VCO PLL L REC PB LIM 31 RFSWP AFLIM LPF 30 NC PHASE LIM COMP MIX MONO 29 FSCIN ...
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... GND Vcc1 5µ 4 147 50k VCT = 1.23V 1 GND – 3 – CXA1737R H = 4.75V 27°C) CC Description Vcc1 2µ ALC time constant pin. ALC is OFF when this pin is low. GND Line input pin. Standard input level: –38dBm. This pin has a small input signal level and high input impedance ...
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... GND Vcc1 26. 60µ GND – 4 – CXA1737R Description DC monitor pin of Rch signal path. Pin for generating the reference current. Connect a 47k external resistor to GND. Be careful not to cause pin cross talk. DC monitor pin of Lch signal path. DC monitor pin of Rch signal ...
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... VccH 9 1k 40k 40µ GND — 5µ 11 4.7k GND 147 1k 5µ GND – 5 – CXA1737R Description DC monitor pin of Lch signal path. Audio system GND pin. NR WEIGHT time constant pin. DC offset cancel pin of NR block. 1 Externally applied voltage ...
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... 30µ 1 GND V 47k 3k 16 60k 50k 20µ GND – 6 – CXA1737R Description attack/ recovery time constant pins. 2µ Pin for monitoring the signal before modulation during recording and after demodulation during playback of Rch Deviation adjusting pin. ...
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... CC 0.08µ 0.08µ 25k GND – 7 – CXA1737R Description Serial/ parallel (SP/ LP) mode switching pin. When this pin is 4.3V or more, the IC operates in serial control mode and mode control for the IC is performed by CS, CK and SI of Pins 58, 59 and 60. When this pin is 3.5V or ...
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... V – 1.15V CC GND – 8 – CXA1737R Description MONODET discrimination output pin. This pin is open collector, and it is pulled up to Vcc with 100k resistor. During parallel mode, this pin is also recording bilingual control input pin. • Specification for parallel CTL ...
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... CC 47k 47k 23k 23k 26 20µ 20µ 73k 73k GND – 9 – CXA1737R Description This pin is for measurement which monitors the BPF output. For monitoring 1.5M BPF characteristics, connect 4.7k resistor to GND. For monitoring 1.7M BPF characteristics, connect 4.7k resistor to Vcc. Recording FM modulated output pin. Reference output is 220mVp-p for 1.5M component ...
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... V – 1.4V CC GND 147 50k 110k 1.2V GND – 10 – CXA1737R Description Time constant pin for determining the MUTE OFF delay time. MUTE ON when drop out (T) continues approximately 1ms (during 680pF externally). Pin 22 input T Pin 27 VTH MUTE ON NTSC/PAL switching pin during parallel mode. ...
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... CC 0.08µ 0.08µ 25k GND 47k 3k 36 60k 50k 20µ GND – 11 – CXA1737R Description MATRIX control input pin during parallel mode. During parallel During Pin 32 serial REC PB Bilingual/ REC 0.7V) MONO MONO Auto MONO STEREO/ M (1.3 to 1.7V) STEREO — ...
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... GND 39 1k — 147 1k 5µ GND – 12 – CXA1737R Description 1 CC Pin for monitoring the signal before modulation during recording and after demodulation during playback of Lch attack/ recovery time constant pins. 2µ RF system GND pin. ...
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... Equivalent circuit 5µ 42 4.7k GND GND 500 44 1k 5µ GND — 500 46 1k 5µ GND – 13 – CXA1737R Description NR WEIGHT time constant pin. RF system reference bias pin. Connect a decoupling capacitor. S/H time constant pin. — S/H time constant pin. ...
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... Reference output –7dBm Equivalent circuit 20k 47 147 10k 40µ 48 50k 1.5V 49 147 – 14 – CXA1737R Description Rch DC check pin. Be careful not to cause pin cross talk. GND Mute control pin 1V) MUTE OFF H ( MUTE ON or OPEN ...
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... GND — 55 147 1 — V 10k 57 5k 300 GND – 15 – CXA1737R Description Output buffer system GND pin LINE/ EPOUT pin. This pin can drive a load of 120 . H CC MUTEOUT pin. This pin outputs current during muting and power ON/OFF to operate the external SW Tr ...
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... 40µ 60 50k 1.5V GND 60k 61 60k GND – 16 – CXA1737R Description MIC/ LINE switching pin during parallel mode 1V) LINE or OPEN H ( MIC CC CS input pin during serial mode. REC/ PB switching pin during parallel mode 1V) ...
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... VCT = 1.23V — 5µ 64 147 50k VCT = 1.23V 1 – 17 – CXA1737R Description Vcc1 Microphone input pin. Standard input level: –38dBm. This pin has a small input signal level and high input impedance. Therefore, be careful not to cause cross talk with other signals. GND Audio system power supply pin ...
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... Mode – 27 – CXA1737R ...
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... Lch/Lch — Rch/Rch OFF — OFF ON — ON MUTE ON MUTE ON — LINE MIC — REC PB — OFF ON — – 28 – CXA1737R Remarks HIGH3 (4. Serial 1 mode CTL IN — during REC DET OUT — during PB — — — — ON OFF (only 1.5M BPF is through) — ...
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... Table OFF LINE H MIC PAL H NTSC L OFF REC H PB – 29 – CXA1737R CTL voltage Pin Symbol LOW HIGH No. OPEN (0 to 1V) ( SIN (15) Data latch OUTSEL2 (bit 8) ...
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... During Pin REC During Pin MONO PB MONO Pin 20 (SO) CS 58Pin OPEN OPEN 20Pin L L The result of detection is output during CS period. OPEN H or OPEN other than CS period. – 30 – CXA1737R H or OPEN ...
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... T1 T2 Fig PGD delay PGD width Fig. 3 1.7M component waveform 1.5M component waveform 15mVp-p/1.5MHz/SIN wave a Level when the 1.7MHz signal is AM modulated (2mVp-p to 20mVp-p) at 400Hz and the 12mVp-p input is set to 0dB. Fig. 4 – 31 – CXA1737R 1.5MHz Dev = ±60kHz fs = 1kHz ...
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... Input the reference input (–38dBm/ 400Hz) to the MIC input (Pins 62 and 4) and adjust the output level of Pins 49 and 52 with the voltage applied to Pin 3 (V3). load resistor between Pin 24 and GND as shown in the electrical load resistor between Pin 24 and GND as shown in the electrical load resistor between Pin 23 and GND as shown in the electrical – 32 – CXA1737R ...
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... CTL OUTSEL L PLLLPF NC L DEVADJ L MONI TCH GND2 L NRDC L WEIGHT VCTH L HTC HTC ON/OFF MUTE – 33 – CXA1737R R DEVADJ R MONI TCH R NRDC R WEIGHT GND1 L IFDC R RFDC L RFDC IREF R IFDC R MICIN FADE R LINEIN ALCDET ...
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... L DEVADJ Lch ADJ DEV L MONI TCH GND2 L NRDC L WEIGHT VCTH L HTC HTC ON/OFF MUTE ON/OFF MUTE – 34 – CXA1737R R DEVADJ Rch ADJ DEV R MONI TCH R NRDC R WEIGHT GND1 L IFDC R RFDC L RFDC IREF R IFDC R MICIN Rch IN MIC FADE ...
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... Graph 3. DEV ADJ control characteristics Lch 0.5 1.0 1.5 2.0 2.5 TP36 adjustment voltage [V] 36 TP36 82k Graph 2. BPF ADJ control characteristics 1.70 1.65 1.60 1.55 1.50 3.0 0 0.5 1.0 1.5 TP26 adjustment voltage [V] 26 82k Graph 4. DEV ADJ control characteristics Rch 3.0 0 0.5 1.0 1.5 TP16 adjustment voltage [V] 16 82k – 35 – CXA1737R 2.0 2.5 3.0 TP26 2.0 2.5 3.0 TP16 ...
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... LQFP (PLASTIC) 12.0 ± 0.2 10.0 ± 0 (0.22 0.08 0.18 – 0.03 0.127 – 0.02 + 0.2 1.5 – 0.1 NOTE: Dimension “ ” does not include mold protrusion. DETAIL A PACKAGE STRUCTURE PACKAGE MATERIAL LEAD TREATMENT LQFP-64P-L01 LQFP064-P-1010 LEAD MATERIAL PACKAGE MASS – 36 – CXA1737R + 0.05 0.1 EPOXY RESIN SOLDER/PALLADIUM PLATING 42/COPPER ALLOY 0.3g ...