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TDA7439 Datasheet

  • TDA7439

  • THREE BANDS DIGITALLY CONTROLLED AUDIO PROCESSOR

  • 19頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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TDA7439
THREE BANDS
DIGITALLY CONTROLLED AUDIO PROCESSOR
1
鈻?/div>
FEATURES
INPUT MULTIPLEXER
鈥?4 STEREO INPUTS
鈥?SELECTABLE INPUT GAIN FOR OPTIMAL
ADAPTATION TO DIFFERENT SOURCES
Figure 1. Package
SDIP30
鈻?/div>
鈻?/div>
ONE STEREO OUTPUT
TREBLE, MIDDLE AND BASS CONTROL IN
2.0dB STEPS
VOLUME CONTROL IN 1.0dB STEPS
TWO SPEAKER ATTENUATORS:
鈥?TWO INDEPENDENT SPEAKER CONTROL
IN 1.0dB STEPS FOR BALANCE FACILITY
鈥?INDEPENDENT MUTE FUNCTION
Table 1. Order Codes
Part Number
TDA7439
Package
SDIP30
鈻?/div>
鈻?/div>
audio applications in car-radio and Hi-Fi systems.
Selectable input gain is provided. 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
amplifiers.
Thanks to the used BIPOLAR/CMOS Technology,
Low Distortion, Low Noise and DC stepping are
obtained
鈻?/div>
ALL FUNCTION ARE PROGRAMMABLE VIA
SERIAL BUS
2
DESCRIPTION
The TDA7439 is a volume tone (bass, middle and
treble) balance (Left/Right) processor for quality
Figure 2. Block Diagram
MUXOUTL
L-IN1
11
100K
12
100K
13
100K
14
100K
0/30dB
2dB STEP
100K
9
100K
8
G
VOLUME
15
INL
16
TREBLE(L)
27
MIN(L) MOUT(L) BIN(L)
26
R
M
25
23
R
B
BOUT(L)
24
L-IN2
L-IN3
TREBLE
MIDDLE
BASS
SPKR ATT
LEFT
6
LOUT
L-IN4
30
I
2
CBUS DECODER + LATCHES
1
29
SCL
SDA
DIG_GND
R-IN1
10
R-IN2
G
VOLUME
TREBLE
MIDDLE
BASS
SPKR ATT
RIGHT
V
REF
5
ROUT
R-IN3
100K
7
100K
INPUT MULTIPLEXER
+ GAIN
17
MUXOUTR
INR
18
28
TREBLE(R)
R
M
19
20
21
R
B
22
2
D95AU342B
3
SUPPLY
4
R-IN4
V
S
AGND
MIN(R) MOUT(R) BIN(R)
BOUT(R) CREF
June 2004
REV. 10
1/19

TDA7439 產(chǎn)品屬性

  • 16

  • 集成電路 (IC)

  • 線性 - 音頻處理

  • -

  • 音頻處理器

  • 車載系統(tǒng)

  • 通孔

  • 30-SDIP（0.400"，10.16mm）

  • 30-SDIP

  • 管件

  • 497-8866-5TDA7439-ND

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