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TDA7334

ST Microelectronics
Part Number TDA7334
Manufacturer ST Microelectronics
Description LOW NOISE STEREO PREAMPLIFIER
Published Apr 23, 2005
Detailed Description ® TDA7334 LOW NOISE STEREO PREAMPLIFIER DUAL CHANNEL PROCESSOR FOR PLAYBACK APPLICATIONS. LOW NOISE HEAD PREAMPLIFIER ...
Datasheet PDF File TDA7334 PDF File

TDA7334
TDA7334

Overview
® TDA7334 LOW NOISE STEREO PREAMPLIFIER DUAL CHANNEL PROCESSOR FOR PLAYBACK APPLICATIONS.
LOW NOISE HEAD PREAMPLIFIER GROUND COMPATIBLE MUTE, AUTOREVERSE METAL/NORMAL FUNCTIONS INTERNAL SWITCHES FOR EQUALIZATION LOW SUPPLY CURRENT MIXED BIPOLAR/CMOS TECHNOLOGY DESCRIPTION The TDA7334 is a monolithic BICmos IC designed for use in stereo cassette player systems.
The dual preamplifier contains mute, autoreverse, metal/normal facilities for amplification of low level signal in applications requiring very low noise performance.
Each channel consists of two cascaded operational amplifiers.
The first one, AMP1, has a fixed gain of 32dB, TEST CIRCUIT R15 6.
2K C4 10nF DIP16 SO16 ORDERING NUMBER: TDA7334 (DIP16) TDA7334D (SO16) low noise forward/reverse switchable input, and allows magnetic heads connection directly to ground.
The second one, AMP2, is a standard operational amplifier whose equalizing external components fix the frequency response.
EQRO R12 300K EQRI 12 RN 13 9 VS C12 100nF +VS R11 1.
2K C11 1µF INPUT R C6 300pF R13 6.
8K 1 32dB GND INR2 R10 600 Ω C5 300pF INR1 R9 600 Ω 14 15 AMP1 AMP2 11 OUTR C13 0.
22µF 20K 8 F/RSW R7 10K +VS INPUT L C3 300pF R1 600 Ω C2 300pF INL1 INL2 R2 600Ω 2 3 7 AMP1 AMP2 MUTE C9 100nF 32dB 4 6 RN 5 16 EQSW OUTL C14 0.
22µF R3 1.
2K C1 1µF R4 6.
8K R5 300K C8 10nF EQLI 20K EQLO GND D94AU079 R8 10K +VS R14 6.
2K November 1999 1/11 TDA7334 ABSOLUTE MAXIMUM RATINGS Symbol VS Ptot Top Tstg Supply Voltage Total Power Dissipation Operating Temperature Range Storage Temperature Range Parameter Value 12 1 -40 to 85 -40 to 150 Unit V W °C °C PIN CONNECTION (Top view) THERMAL DATA DIP 16 Rth j-pins Thermal resistance junction-pins 100 SO16 200 °C/W 2/11 TDA7334 Application Circuit R15 6.
2K C7 10nF EQRO R13 6.
8K R12 300K EQRI 32dB INR2 INR1 INPUT R 14 15 AMP1 AMP2 8 F/RSW R7 30K C10 0.
68µF 7 AMP1 AMP2 C9 0.
68µF 32dB 4 R4 6.
8K R5 300K EQLI 5 EQLO RN 16 EQSW R8 30K C4 0.
68µF D94AU080 12 RN 13 9 VS C12 10...


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