TDA7319 Datasheet, PDF (1/16 Pages) STMicroelectronics – 3 BAND DIGITAL CONTROLLED AUDIO PROCESSOR

TDA7319
3 BAND DIGITAL CONTROLLED AUDIO PROCESSOR
ONE STEREO INPUT
ONE STEREO OUTPUT
TWO INDEPENDENT VOLUME CONTROL IN
1.0dB STEPS
TREBLE, MIDDLE AND BASS CONTROL IN
1.0dB STEPS
ALL FUNCTIONS PROGRAMMABLE VIA SE-
RIAL I² CBUS
DESCRIPTION
The TDA7319 is a volume and tone (bass , mid-
dle and treble) processor for quality audio appli-
cation in car radio and Hi-Fi system.
Control is accomplished by serial I²C bus micro-
processor interface.
The AC signal setting is obtained by resistor net-
works and switches combined with operational
amplifiers.
DIP20
SO20
ORDERING NUMBERS: TDA7319 (DIP20)
TDA7319D (SO20)
Thanks to the used BIPOLAR/MOS Technology,
Low Distortion, Low Noise and Low Dc stepping
are obtained.
BLOCK DIAGRAM AND APPLICATION CIRCUIT
C1 2.2µF
2
L
C2 2.2µF
19
R
R1
2.7K
R3
5.6K
C3
5.6nF
TREBLE(L)
3
MIN(L)
4
C5
15nF
MOUT(L)
5
C6
22nF
6
C9
100nF
BIN(L)
7
C10
100nF
BOUT(L)
1st VOL
TREBLE
MIDDLE
BASS
2nd VOL
8
OUT L
1st VOL
TREBLE
MIDDLE
10
9
SERIAL BUS DECODE & LATCHES
11
BASS
2nd VOL
13
SCL
SDA
DIGGND
OUT R
I²C
BUS
1
VS
SUPPLY
12
20
AGND CREF
18
17
16
TREBLE(R) MIN(R) MOUT(R)
15
BIN(L)
14
BOUT(R)
CREF
10µF
C4
5.6nF
C7
15nF
C8
22nF
C11
100nF
C12
100nF
R2
2.7K
R4
5.6K
D93AU042E
May 1995
1/16