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參數(shù)資料
| 型號(hào)： | TPA6013A4PWPRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO24 |
| 封裝： | GREEN, PLASTIC, HTSSOP-24 |
| 文件頁數(shù)： | 5/30頁 |
| 文件大小： | 743K |
| 代理商： | TPA6013A4PWPRG4 |
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PGND
ROUT-
PVDD
RHPIN
RLINEIN
RIN
VDD
LIN
LLINEIN
LHPIN
PVDD
LOUT-
1
ROUT+
SE/BTL
HP/LINE
VOLUME
SEDIFF
SEMAX
AGND
BYPASS
FADE
SHUTDOWN
LOUT+
PGND
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
CS
NC
VDD
Ci
CS
Ci
CS
Power Supply
Left Negative
Differential Input Signal
Power Supply
VDD
100 k
100 k
CC
In From DAC
or
Potentiometer
(DC Voltage)
C(BYP)
System
Control
CC
Right
Speaker
Left
Speaker
Headphones
1 k
1 k
NC
Left Positive Differential
Input Signal
Right Negative
Differential Input Signal
Right Positive
Differential Input Signal
www.ti.com
SLOS635 – NOVEMBER 2009
A.
A 0.1-
μF ceramic capacitor should be placed as close as possible to the IC. For filtering lower-frequency noise
signals, a larger electrolytic capacitor of 10
μF or greater should be placed near the audio power amplifier.
Figure 23. Typical TPA6013A4 Application Circuit Using Differential Inputs
SE/BTL OPERATION
The ability of the TPA6013A4 to easily switch between BTL and SE modes is one of its most important cost
saving features. This feature eliminates the requirement for an additional headphone amplifier in applications
where internal stereo speakers are driven in BTL mode but external headphone or speakers must be
accommodated. Internal to the TPA6013A4, two separate amplifiers drive OUT+ and OUT–. The SE/BTL input
controls the operation of the follower amplifier that drives LOUT– and ROUT–. When SE/BTL is held low, the
amplifier is on and the TPA6013A4 is in the BTL mode. When SE/BTL is held high, the OUT– amplifiers are in a
high output impedance state, which configures the TPA6013A4 as an SE driver from LOUT+ and ROUT+. IDD is
reduced by approximately one-third in SE mode. Control of the SE/BTL input can be from a logic-level CMOS
source or, more typically, from a resistor divider network as shown in Figure 24. The trip level for the SE/BTL
input can be found in the recommended operating conditions table.
Copyright 2009, Texas Instruments Incorporated
13
Product Folder Link(s) :TPA6013A4
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