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| 型号： | TPA2016D2RTJT |
| 厂商： | Texas Instruments |
| 文件页数： | 8/39页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO PWR 2.8W D 20QFN |
| 标准包装： | 250 |
| 类型： | D 类 |
| 输出类型： | 2 通道（立体声） |
| 在某负载时最大输出功率 x 通道数量： | 2.8W x 2 @ 4 欧姆 |
| 电源电压： | 2.5 V ~ 5.5 V |
| 特点： | 差分输入，I²C，短路和热保护，关机，音量控制 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 20-QFN 裸露焊盘（4x4） |
| 封装/外壳： | 20-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 其它名称： | 296-32452-2 TPA2016D2RTJT-ND |
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V
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V
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IN
1:
1
Large Limiter
Range
Small
Compression
Region
Large
Compression
Region
Small Limiter
Range
Rotation
Point @
lower gain
Rotation
Point @
higher gain
time
Gain-dB
InputSignal
Amplitude-V
rms
time
NoiseGateThreshold
No
Audio
Gaindoesnotchange
inthisregion
SLOS524D – JUNE 2008 – REVISED AUGUST 2009........................................................................................................................................................ www.ti.com
Figure 31. Output Signal vs Input Signal State Diagram Showing the Effects of the Limiter Range to the
Compression Region
Noise Gate Threshold: The noise gate threshold prevents the AGC from changing the gain when there is no
audio at the input of the amplifier. The noise gate threshold stops gain changes until the input signal is above the
noise gate threshold. Select the noise gate threshold to be above the noise but below the minimum audio at the
input of the amplifier signal. A filter is needed between delta-sigma CODEC/DAC and TPA2016D2 for
effectiveness of the noise gate function. The filter eliminates the out-of-band noise from delta-sigma modulation
and keeps the CODEC/DAC output noise lower than the noise gate threshold.
Figure 32. Time Diagram Showing the Relationship Between Input Signal Amplitude, Noise Gate
Threshold and Gain Versus Time
Maximum Gain: This variable limits the number of gain steps in the AGC. This feature is useful in order to
accomplish a more advanced output signal vs. input signal transfer characteristic.
For example, to prevent the gain from going above a certain value, reduce the maximum gain.
However, this variable will affect the limiter range and the compression region. If the maximum gain is
decreased, the limiter range and/or compression region is reduced. Figure 33 illustrates the effects.
16
Copyright 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): TPA2016D2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPA2016D2V1YZHR | 制造商:Texas Instruments 功能描述: |
| TPA2016D2YZHR | 功能描述:音频放大器 1.7W/Ch Stereo Class D Aud Amp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TPA2016D2YZHT | 功能描述:音频放大器 1.7W/Ch Stereo Class D Aud Amp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TPA2016DYZHT2 | 制造商:Texas Instruments 功能描述: |
| TPA2017D2 | 制造商:TI 制造商全称:Texas Instruments 功能描述:2.8-W/Ch Stereo Class-D Audio Amplifier with SmartGainTM Dynamic Range Compression and AGC |
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