- 您现在的位置：买卖IC网 > PDF目录98272 > TPA3100D2PHPR (TEXAS INSTRUMENTS INC) 21.8 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 PDF资料下载
参数资料
| 型号： | TPA3100D2PHPR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 21.8 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| 封装： | 9 X 9 MM, GREEN, PLASTIC, HTQFP-48 |
| 文件页数： | 20/41页 |
| 文件大小： | 1191K |
| 代理商： | TPA3100D2PHPR |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页当前第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页
Analyzer
20Hz-20kHz
(a)BasicClass-AB
APA
Signal
Generator
PowerSupply
Analyzer
20Hz-20kHz
R
L
(b)Filter-FreeandTraditionalClass-D
Class-D APA
Signal
Generator
PowerSupply
R
L
Low-PassRC
Filter
Low-PassRC
Filter
(Seenote A)
www.ti.com
SLOS469F – OCTOBER 2005 – REVISED AUGUST 2010
The generator output and amplifier input must be ac-coupled. However, the EVMs already have the ac-coupling
capacitors, (CIN), so no additional coupling is required. The generator output impedance should be low to avoid
attenuating the test signal, and is important because the input resistance of APAs is not high. Conversely, the
analyzer-input impedance should be high. The output resistance, ROUT, of the APA is normally in the hundreds of
milliohms and can be ignored for all but the power-related calculations.
Figure 35(a) shows a class-AB amplifier system. It takes an analog signal input and produces an analog signal
output. This amplifier circuit can be directly connected to the AP-II or other analyzer input.
This is not true of the class-D amplifier system shown in Figure 35(b), which requires low-pass filters in most
cases in order to measure the audio output waveforms. This is because it takes an analog input signal and
converts it into a pulse-width modulated (PWM) output signal that is not accurately processed by some
analyzers.
A.
For efficiency measurements with filter-free Class-D, RL should be an inductive load like a speaker.
Figure 35. Audio Measurement Systems
The TPA3100D2 uses a modulation scheme that does not require an output filter for operation, but they do
sometimes require an RC low-pass filter when making measurements. This is because some analyzer inputs
cannot accurately process the rapidly changing square-wave output and therefore record an extremely high level
of distortion. The RC low-pass measurement filter is used to remove the modulated waveforms so the analyzer
can measure the output sine wave.
Copyright 2005–2010, Texas Instruments Incorporated
27
Product Folder Link(s): TPA3100D2
相关PDF资料 |
PDF描述 |
|---|---|
| TPA3100D2RGZRG4 | 21.8 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48 |
| TPA3100D2RGZTG4 | 21.8 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48 |
| TPA3101D2RGZRG4 | 10 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48 |
| TPA3101D2RGZR | 10 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48 |
| TPA3101D2RGZTG4 | 10 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPA3100D2PHPRG4 | 功能描述:音频放大器 20 W Stereo Class-D Audio 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 |
| TPA3100D2-Q1 | 制造商:TI 制造商全称:Texas Instruments 功能描述:20-W STEREO CLASS-D AUDIO POWER AMPLIFIER |
| TPA3100D2RGZR | 功能描述:音频放大器 20 W Stereo Class-D Audio 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 |
| TPA3100D2RGZRG4 | 功能描述:音频放大器 20 W Stereo Class-D Audio 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 |
| TPA3100D2RGZR-P | 制造商:TI 制造商全称:Texas Instruments 功能描述:20-W STEREO CLASS-D AUDIO POWER AMPLIFIER |
发布紧急采购，3分钟左右您将得到回复。