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參數(shù)資料
| 型號： | TDA746913TR |
| 廠商： | 意法半導體 |
| 英文描述： | LOW VOLTAGE ANALOG AUDIO PROCESSOR WITH HEADPHONE POWER AMPLIFIER |
| 中文描述： | 低電壓模擬音頻處理器耳機功率放大器 |
| 文件頁數(shù)： | 1/13頁 |
| 文件大?。?/td> | 274K |
| 代理商： | TDA746913TR |
1/13
TDA7469
June 2004
1
■
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
FEATURES
2
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.
DESCRIPTION
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
μ
F
0.47
μ
F
SUPPLY
SUPPLY
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
μ
F
22
μ
F
TREBLE-R
MUX_R
MUX_L
RB
RB
BASSI-R
BASSO-R
x1
x1
0.47
μ
F
TREBLE
VOLUME
VOLUME
+6dB
÷
0dB
+6dB
÷
-63dB
+6dB
÷
0dB
3.3nF
+6dB
÷
-63dB
TREBLE
BASS
BASS
BASS_ALC
CONTROL
HALF_WAVE
RECTIFIER
25K
25K
V
REF
gm
68nF
3.3nF
68nF
68nF
68nF
5.6K
5.6K
16
or
32
16
or
32
220
μ
F
BASSO-L
BASSI-L
IN2-R
0.47
μ
F
25K
25K
25K
25K
25K
25K
gm
IN1-L
0.47
μ
F
REV. 2
Figure 1. Package
Table 1. Order Codes
Part Number
TDA7469
TDA746913TR
Package
SSOP24
Tape & Reel
SSOP24
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