TDA7334
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 32d B, TEST CIRCUIT
R15 6.2K C4 10n F
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 ponents fix the frequency response.
EQRO R12 300K EQRI
12 RN 13
VS C12 100n F
+VS
R11 1.2K C11 1µF INPUT R C6 300p F
R13 6.8K
1 32d B
INR2 R10 600 Ω C5 300p F INR1 R9 600 Ω
14 15 AMP1 AMP2
OUTR
C13 0.22µF
20K
F/RSW
R7 10K
+VS
INPUT L C3 300p F R1 600 Ω C2 300p F
INL1 INL2 R2 600Ω
2 3
7 AMP1 AMP2
MUTE C9 100n...
