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參數(shù)資料
| 型號： | TPA2008D2PWPR |
| 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)： | 20/26頁 |
| 文件大小： | 691K |
| 代理商： | TPA2008D2PWPR |
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TPA2008D2
SLOS413C – JULY 2003 – REVISED MAY 2004
TERMINAL FUNCTIONS
TERMINAL
I/O
DESCRIPTION
NO.
NAME
AGND
12
-
Analog ground
BYPASS
22
I
Tap to voltage divider for internal mid-supply bias generator used for internal analog reference.
COSC
10
I
A capacitor connected to this terminal sets the oscillation frequency in conjunction with ROSC. For
proper operation, connect a 220-pF capacitor from COSC to ground.
LINN
1
I
Negative differential audio input for left channel
LINP
2
I
Positive differential audio input for left channel
LOUTN
8
O
Negative audio output for left channel
LOUTP
5
O
Positive audio output for left channel
NC
15
I
No connection
PGNDL
6, 7
-
Power ground for left channel H-bridge
PGNDR
18, 19
-
Power ground for right channel H-bridge
PVDDL
4, 9
Power supply for left channel H-bridge
PVDDR
16, 21
Power supply for right channel H-bridge
RINN
24
I
Positive differential audio input for right channel
RINP
23
I
Negative differential audio input for right channel
ROSC
11
I
A resistor connected to the ROSC terminal sets the oscillation frequency in conjunction with COSC. For
proper operation, connect a 120-k
resistor from ROSC to ground.
ROUTN
17
O
Negative output for right channel
ROUTP
20
O
Positive output for right channel
SHUTDOWN
3
I
Places the amplifer in shutdown mode if a TTL logic low is placed on this terminal; normal operation if a
TTL logic high is placed on this terminal.
VDD
13
-
Analog power supply
VOLUME
14
I
DC volume control for setting the gain on the internal amplifiers. The dc voltage range is 0 to VDD.
Thermal Pad
-
Connect to analog ground and the power grounds must be soldered down in all applications to properly
secure device on the PCB.
3
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