TDA7339
DESCRIPTION
The TDA7339 is a volume and tone (bass , middle and treble) processor for quality audio application in car radio and Hi-Fi system. Control is acplished by serial I2C bus microprocessor interface. The AC signal setting is obtained by resistor networks and switches bined with operational amplifiers. BLOCK DIAGRAM
DIP28
ORDERING NUMBER: TDA7339
Thanks to the used BIPOLAR/MOS Technology, Low Distortion, Low Noise and Low DC stepping are obtained.
R1 2.7K C7 5.6n F 3x 2.2 µF C1 C2 C3 REC OUT(L) TREBLE(L) 2 4 5 MUTE 8 1st VOL TREBLE MIDDLE 3 C9 18n F M IN(L) 6 C10 22n F M OUT(L) 7 9 C13 100n F B IN(L)
R3 2.7K C14 100n F B OUT(L) 10 2nd VOL BASS SOFTMUTE
IN1(L) IN2(L) IN3(L)
OUT L
14 13 SERIAL BUS DECODE & LATCHES 18 15 1st VOL TREBLE MIDDLE BASS 2nd VOL SOFTMUTE 17 11
SCL SDA ADDR DIG.GND CMUTE CSM 22n F OUT R BUS
MULTIPLEXER
IN1(R) IN2(R) IN3(R)
C4 C5 C6 3x 2.2 µF
27 25 24 MUTE
1 VS SUPPLY 16 ANAL.GND CREF 28 21 26 M IN(R) C11 18n F 23 M OUT(R) C12 22n F R2 2.7K 22 20...
