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參數資料
| 型號： | TPA2000D1GQC |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 2-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER |
| 中文描述： | 2 - W型單聲道無濾波器D類音頻功率放大器 |
| 文件頁數： | 10/14頁 |
| 文件大小： | 205K |
| 代理商： | TPA2000D1GQC |
TPA2000D1
2-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER
SLOS328B
–
JUNE 2000
–
REVISED MAY 2001
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
differential input
The differential input stage of the amplifier cancels any noise that appears on both input lines of the channel.
To use the TPA2000D1 EVM with a differential source, connect the positive lead of the audio source to the INP
input and the negative lead from the audio source to the INN input. To use the TPA2000D1 with a single-ended
source, ac ground the INN input through a capacitor and apply the audio single to the input. In a single-ended
input application, the INN input should be ac-grounded at the audio source instead of at the device input for best
noise performance.
shutdown modes
The TPA2000D1 employs a shutdown mode of operation designed to reduce supply current (I
DD
) to the absolute
minimum level during periods of nonuse for battery-power conservation. The SHUTDOWN input terminal
should be held high during normal operation when the amplifier is in use. Pulling SHUTDOWN low causes the
outputs to mute and the amplifier to enter a low-current state, I
DD(SD)
= 1
μ
A. SHUTDOWN should never be left
unconnected because amplifier operation would be unpredictable.
using low-ESR capacitors
Low-ESR capacitors are recommended throughout this application section. A real (as opposed to ideal)
capacitor can be modeled simply as a resistor in series with an ideal capacitor. The voltage drop across this
resistor minimizes the beneficial effects of the capacitor in the circuit. The lower the equivalent value of this
resistance the more the real capacitor behaves like an ideal capacitor.
evaluation circuit
INP
INN
SHUTDOWN
GAIN0
GAIN1
PVDD
OUTP
GNDP
BYPASS
AGND
COSC
ROSC
VDD
PVDD
OUTN
GNDN
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
U1
TPA2000D1
C5
1
μ
F
C6
1
μ
F
C7
1
μ
F
C1
220 pF
R1
120 k
C2
1
μ
F
C3
1
μ
F
J1
J2
C4
1
μ
F
C8
10
μ
F
R3
120 k
S1
R2
120 k
OUT
–
VDD
OUT+
IN
–
IN+
VDD
R4
120 k
SHUTDOWN
GND
GND
NOTE: R1, R2, and R3 are used in the EVM but are not required for normal applications.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA2000D1GQCR | 功能描述:音頻放大器 Mono Filter-Free Class-D RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA2000D1PW | 功能描述:音頻放大器 2W Class-D RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA2000D1PW | 制造商:Texas Instruments 功能描述:POWER AMP CLASS-D AUDIO SMD 2000 |
| TPA2000D1PWG4 | 功能描述:音頻放大器 Mono Filter-Free Class-D RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA2000D1PWR | 功能描述:音頻放大器 Mono Filter-Free Class-D RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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