参数资料
型号: TDA7435D
厂商: STMICROELECTRONICS
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO28
封装: SO-28
文件页数: 1/10页
文件大小: 307K
代理商: TDA7435D
TDA7435
DIGITALLY CONTROLLED AUDIO PROCESSOR
WITH LOUDSPEAKERS EQUALIZER
INPUT
- FOUR HIGH PASS CHANNELS
- TWO AUX STEREO CHANNELS
VOLUME CONTROL IN 1dB STEPS WITH
GAIN UP TO 15dB
SOFT MUTE AND DIRECT MUTE
FOUR AUXILIARY CHANNELS:
- TWO SPEAKERS CONTROL IN 1dB STEP
- TWO CHANNELS MULTIPLEXED WITH
THE HIGH PASS CHANNELS
ALL FUNCTIONS PROGRAMMABLE VIA SE-
RIAL I
2 CBUS
DESCRIPTION
The audioprocessor TDA7435 is an upgrade of
the TDA731X audioprocessor family.
Due to a highly linear signal processing, using
CMOS-switching techniques instead of standard
bipolar multipliers, very low distortion and very
low noise are obtained.
A second programmable high pass filtering pro-
vides the loudspeakers equalization.
The soft Mute function is implemented andcan be
activated in two ways:
1 Via serial bus (Mute byte, bit D0)
2 Directly on pin 3 through an I/O line of the mi-
crocontroller
Very low DC stepping is obtained by use of a
BICMOS technology.
September 2003
ORDERING NUMBER: TDA7435D
SO28
HP FILTER
SOFT
MUTE
GAIN
0-15dB/1dB step
MUX
ATTENUATOR
0/-79dB
ATTENUATOR
0/-79dB
I
2C BUS
SUPPLY
22
21
20
19
18
17
16
15
6
7
1
2
HP FL 1
HP FL 2
HP FR 1
HP FR 2
HP RL 1
HP RL 2
HP RR 1
HP RR 2
AUX 2 IN L
AUX 2 IN R
AUX 1 IN L
AUX 1 IN R
AUX 1 OUT R
4
AUX 1 OUT L
5
AUX 2 OUT R
8
AUX 2 OUT L
9
HP RR OUT
14
HP RL OUT
13
HP FR OUT
11
HP FL OUT
10
OUT REF
12
28
23
24
25
26
27
SDA SCL DGND AGND CREF
VCC
D96AU437A
3
CSM
BLOCK DIAGRAM
1/10
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