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STV5712

ST Microelectronics
Part Number STV5712
Manufacturer ST Microelectronics
Description ADVANCED FM AUDIO PLAY-BACK AND RECORD AMPLIFIER FOR VCR
Published Jun 23, 2005
Detailed Description STV5712 ADVANCED FM AUDIO PLAY-BACK AND RECORD AMPLIFIER FOR VCR RECORD MODE ONE INTEGRATED I/I CONVERTER WITH ACCURATE...
Datasheet PDF File STV5712 PDF File

STV5712
STV5712


Overview
STV5712 ADVANCED FM AUDIO PLAY-BACK AND RECORD AMPLIFIER FOR VCR RECORD MODE ONE INTEGRATED I/I CONVERTER WITH ACCURATE CONTROL OF TRANSCONDUCTANCE RECORD AMPLIFIER WITH AUTOMATIC PROTECTION AGAINST SHORT CIRCUIT 5V SUPPLY VOLTAGE .
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PLAY-BACK MODE LOW NOISE 68dB AMPLIFIERS FOR 2 HEADS AUTOMATIC OFFSET CANCELLATION BETWEEN THE 2 SELECTED HEADS ONE PLAY-BACK OUTPUT MODE SELECTION BY LOGIC INPUT SO16 NARROW (Plastic Micropackage) ORDER CODE : STV5712 DESCRIPTION The STV5712 is an advanced two head FM audio record and play-back amplifier for VCR.
PIN CONNECTIONS VCC V2 C2 H2 GND1 H1 C1 FM OUT 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 V1 I OUT GND2 PROT V MES V IN SW REC SW H 5712-01.
EPS April 1996 1/8 STV5712 BLOCK DIAGRAM SW REC GND2 SW H 9 PROT VMES IOUT 16 15 14 13 12 11 VIN V1 10 S T V 5 7 1 2 1 VCC 2 V2 3 C2 4 H2 5 GND1 6 H1 7 C1 8 FM OUT 5712-02.
EPS FUNCTIONAL DESCRIPTION STV5712 is intended for 2 heads FM audio VCR applications.
High performancetechnologyallows very low noise levels (current and voltage).
In play-back mode a special feature suppresses the DC offset when switching two channels.
Optimized play-back output stage gives to the STV5712 large capability to directly drive a coaxial cable in order to reduce number of external components.
Only one power supply is necessary for play-back and record modes.
The mode can be chosen through a logic input.
Aspecial care has been taken to avoid current peaks through the rotary transformers.
ABSOLUTE MAXIMUM RATINGS VCC TJ Power Supply Voltage Junction Temperature 6 + 150 V o 5712-01.
TBL 5712-02.
TBL During play-back mode, record output is grounded via an internal transistor and during record mode preamplifiers are turned off.
There is one output current for the two heads, the DC current and the AC characteristics can be very precisely controled with accurate external resistors.
If recommended resistances are used, a ±5% transconductance accuracy is guaranted.
The recording...


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