參數(shù)資料
型號: TDA746913TR
廠商: STMICROELECTRONICS
元件分類: 音頻控制
英文描述: 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO24
封裝: SSOP-24
文件頁數(shù): 1/13頁
文件大?。?/td> 725K
代理商: TDA746913TR
1/13
TDA7469
December 2004
1
FEATURES
2 STEREO INPUT
1 STEREO OUTPUT
TREBLE BOOST
BASS CONTROL
BASS AUTOMATIC LEVEL CONTROL
VOLUME CONTROL IN 1dB STEPS
MUTE
STAND-BY FUNCTION SOFTWARE
CONTROLLED
ALL FUNCTION ARE PROGRAMMABLE VIA
SERIAL BUS
2
DESCRIPTION
The TDA7469 is a volume tone (bass and treble) pro-
cessor for quality audio applications in Low voltage
supply portable systems.
Bass ALC (Automatic Level Control) function can be
adjusted by a dedicated pin. The 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 ob-
tained.
LOW VOLTAGE ANALOG AUDIO PROCESSOR WITH
HEADPHONE POWER AMPLIFIER
Figure 2. Block Diagram
IN1-R
ALC
IN2-L
0.47
F
0.47
F
SUPPLY
VS
GND
CREF
TREBLE-L
D00AU1234
I2C BUS DECODER + LATCHES
SCL
SDA
PVS-L
PGND-L
PGND-R
PVS-R
OUT-L
OUT-R
220
F
22
F
TREBLE-R
MUX_R
MUX_L
RB
BASSI-R
BASSO-R
x1
0.47
F
TREBLE
VOLUME
+6dB
÷
0dB
+6dB
÷
-63dB
+6dB
÷
0dB
3.3nF
+6dB
÷
-63dB
TREBLE
BASS
BASS_ALC
CONTROL
HALF_WAVE
RECTIFIER
25K
VREF
gm
68nF
3.3nF
68nF
5.6K
16
or
32
16
or
32
220
F
BASSO-L
BASSI-L
IN2-R
0.47
F
25K
gm
IN1-L
0.47
F
REV. 3
Figure 1. Package
Table 1. Order Codes
Part Number
Package
TDA7469
SSOP24
TDA746913TR
Tape & Reel
SSOP24
Obsolete
Product(s)
- Obsolete
Product(s)
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