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参数资料
| 型号： | TPA3123D2PWPG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 25 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24 |
| 封装： | GREEN, PLASTIC, TSSOP-24 |
| 文件页数： | 12/30页 |
| 文件大小： | 887K |
| 代理商： | TPA3123D2PWPG4 |
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24
23
22
21
20
19
18
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16
15
14
13
PVCCL
SD
PVCCL
MUTE
LIN
RIN
BYPASS
AGND
PVCCR
VCLAMP
PVCCR
PGNDL
LOUT
BSL
AVCC
GAIN0
GAIN1
BSR
ROUT
PGNDR
SLOS541C – JULY 2007 – REVISED AUGUST 2010
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
PWP (TSSOP) PACKAGE
(TOP VIEW)
Table 1. PIN FUNCTIONS
PIN
I/O/P
DESCRIPTION
24-PIN
NAME
(PWP)
Shutdown signal for IC (low = disabled, high = operational). TTL logic levels with compliance to
SD
2
I
AVCC
RIN
6
I
Audio input for right channel
LIN
5
I
Audio input for left channel
GAIN0
18
I
Gain select least-significant bit. TTL logic levels with compliance to AVCC
GAIN1
17
I
Gain select most-significant bit. TTL logic levels with compliance to AVCC
Mute signal for quick disable/enable of outputs (high = outputs switch at 50% duty cycle, low =
MUTE
4
I
outputs enabled). TTL logic levels with compliance to AVCC
BSL
21
I/O
Bootstrap I/O for left channel
PVCCL
1, 3
P
Power supply for left-channel H-bridge, not internally connected to PVCCR or AVCC
LOUT
22
O
Class-D 1/2-H-bridge positive output for left channel
PGNDL
23, 24
P
Power ground for left-channel H-bridge
VCLAMP
11
P
Internally generated voltage supply for bootstrap capacitors
BSR
16
I/O
Bootstrap I/O for right channel
ROUT
15
O
Class-D 1/2-H-bridge negative output for right channel
PGNDR
13, 14
P
Power ground for right-channel H-bridge.
PVCCR
10, 12
P
Power supply for right-channel H-bridge, not connected to PVCCL or AVCC
AGND
9
P
Analog ground for digital/analog cells in core
AGND
8
P
Analog ground for analog cells in core
Reference for preamplifier inputs. Nominally equal to AVCC/8. Also controls start-up time via
BYPASS
7
O
external capacitor sizing.
AVCC
19, 20
P
High-voltage analog power supply. Not internally connected to PVCCR or PVCCL
Connect to ground. Thermal pad should be soldered down on all applications to secure the
Thermal pad
Die pad
P
device properly to the printed wiring board.
2
Copyright 2007–2010, Texas Instruments Incorporated
Product Folder Link(s) :TPA3123D2
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