參數(shù)資料
型號: TPA0252PWPRG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 音頻控制
英文描述: 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24
封裝: GREEN, PLASTIC, HTSSOP-24
文件頁數(shù): 6/34頁
文件大小: 851K
代理商: TPA0252PWPRG4
www.ti.com
CCLK
47 nF
SE/BTL
ROUT+
13
R
MUX
RHPIN
RLINEIN
+
-
16
17
CIRIN-
0.47
F
15
RIN
ROUT-
11
+
-
1 k
COUTR
330
F
100 k
L
MUX
LHPIN
LLINEIN
20
19
CILIN-
0.47
F
21
LIN
1 k
COUTL
330
F
VDD
100 k
Depop
Circuitry
Power
Management
PVDD
3
VDD
18
BYPASS
7
SHUT-
DOWN
2
GND
LOUT+
23
+
-
LOUT-
1
+
-
CBYP
0.47
F
12, 24
To
System
Control
CSR
0.1
F
VDD
CSR
0.1
F
VDD
See Note A
PC-
Beep
PC-BEEP
10
CPCB
0.47
F
PC-BEEP
Input Signal
Gain/
MUX
Control
UP
CLK
5
6
4
CIRIN+
0.47
F
22
CILIN+
0.47
F
32-Step
Volume
Control
32-Step
Volume
Control
32-Step
Volume
Control
32-Step
Volume
Control
VDD
100 k
Up
Down
100 k
DOWN
CLHP-
0.47
F
Gain
Memory
VAUX
9
0.47
F
VDD
System
VAUX
HP/LINE
14
NC
Right
Positive
Differential
Input Signal
Right
Negative
Differential
Input Signal
Left
Positive
Differential
Input Signal
Left
Negative
Differential
Input Signal
NC
TPA0252
SLOS288B – JUNE 2000 – REVISED SEPTEMBER 2004
Application Information (continued)
A.
A 0.47 F ceramic capacitor must be placed as close as possible to the IC. For filtering lower-frequency noise
signals, a larger electrolytic capacitor of 10 F or greater must be placed near the audio power amplifier.
Figure 31. Typical TPA0252 Application Circuit Using Differential Inputs
14
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