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TDA7309 Datasheet

  • TDA7309

  • DIGITAL CONTROLLED STEREO AUDIO PROCESSOR WITH LOUDNESS

  • 12頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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TDA7309
DIGITAL CONTROLLED STEREO AUDIO PROCESSOR
WITH LOUDNESS
INPUT MULTIPLEXER:
3 STEREO INPUTS
RECORD OUTPUT FUNCTION
LOUDNESS FUNCTION
VOLUME CONTROL IN 1dB STEPS
INDEPENDENT LEFT AND RIGHT VOLUME
CONTROL
SOFT MUTE FUNCTION
ALL FUNCTIONS PROGRAMMABLE VIA SE-
RIAL I
2
C BUS
DIP20
SO20
DESCRIPTION
The TDA7309 is a control processor with inde-
pendent left and right volume control for quality
audio applications. Selectable external loudness
and soft mute functions are provided.
Control is accomplished by serial I
2
C bus micro-
processor interface.
The AC signal setting is obtained by resistor net-
BLOCK DIAGRAM
ORDERING NUMBER:
TDA7309
TDA7309D
works and switches combined with operational
amplifiers.
Thanks to the used BIPOLAR/CMOS Technology,
Low Distortion, Low Noise and Low DC stepping
are obtained.
100nF
Recout(L)
3x
2.2碌F
17
18
LEFT
INPUTS
20
VOLUME +
LOUDNESS
MUTE
2
1
LOUD(L)
19
OUT
LEFT
INPUT
SELECTOR
3x
2.2碌F
14
13
RIGHT
INPUTS
11
VOLUME +
LOUDNESS
SOFT
MUTE
SERIAL BUS DECODER + LATCHES
6
4
5
8
DIGGND
SDA
SCL
ADDR
CSM
BUS
3
SUPPLY
TDA7309
MUTE
15
CREF
10
Recout(R)
22碌F
12
LOUD(R)
9
OUT
RIGHT
16
VS
7
AGND
D93AU045A
100nF
September 1997
1/12

TDA7309 產(chǎn)品屬性

  • 50

  • 集成電路 (IC)

  • 線性 - 音頻處理

  • -

  • 音頻處理器

  • -

  • 通孔

  • 20-DIP（0.300"，7.62mm）

  • 20-DIP

  • 管件

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