TDA7429 Datasheet, PDF (1/22 Pages) STMicroelectronics – DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX

TDA7429
DIGITALLY CONTROLLED AUDIO PROCESSOR
WITH SURROUND SOUND MATRIX
1 FEATURES
■ 3 STEREO INPUTS
Figure 1. Package
■ INPUT ATTENUATION CONTROL IN 0.5dB
STEP
■ TREBLE MIDDLE AND BASS CONTROL
SDIP42
TQFP44
■ THREE SURROUND MODES ARE
AVAILABLE
Table 1. Order Codes
– MUSIC: 4 SELECTABLE RESPONSES
) – MOVIE AND SIMULATED:
t(s ^{256 SELECTABLE RESPONSES}
c ■ FOUR SPEAKERS ATTENUATORS:
u _{– 4 INDEPENDENT SPEAKERS CONTROL}
rod ^{IN 1dB STEPS FOR BALANCE FACILITY}
– INDEPENDENT MUTE FUNCTION
P _{■ ALL FUNCTIONS PROGRAMMABLE VIA}
te _{SERIAL BUS}
sole 2 DESCRIPTION
b _{The TDA7429 is volume tone (bass middle and tre-}
O _{ble) balance (Left/Right) processors for quality audio}
- _{applications in TV and Hi-Fi systems.}
t(s) ^{Figure 2. Pin Connection (TQFP44)}
Part Number
TDA7429S
TDA7429T
TDA7429T13TR
Package
SDIP42
TQFP44
Tape & Reel
It reproduces surround sound by using programma-
ble phase shifters and a signal matrix. Control of all
the functions is accomplished by serial bus.
The AC signal setting is obtained by resistor net-
works and switches combined with operational ampli-
fiers.
Thanks to the used BIPOLAR/CMOS Technology,
Low Distortion, Low Noise and DC stepping are
obtained.
roduc _LP1
P _HP1
te ^HP2.
le ^REAROUT
REARIN
so VAR_L
b BASSO_L
O ^VAR_R
44 43 42 41 40 39 38 37 36 35 34
1
33
2
32
3
31
4
30
5
29
6
28
7
27
8
26
MONITOR_R
MONITOR_L
L_IN1
L_IN2
L_IN3
L_IN4
AUXOUT_L
AUXOUT_R
BASSO_R 9
25 L_OUT
BASS_LO 10
24 R_OUT
BASS_LI 11
23 DIG_GND
12 13 14 15 16 17 18 19 20 21 22
D96AU532
June 2004
REV. 6
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