参数资料
型号: TPA3106D1VFP
厂商: TEXAS INSTRUMENTS INC
元件分类: 音频/视频放大
英文描述: 40 W, 1 CHANNEL, AUDIO AMPLIFIER, PQFP32
封装: 7 X 7 MM, GREEN, PLASTIC, HLQFP-32
文件页数: 18/35页
文件大小: 1250K
代理商: TPA3106D1VFP
www.ti.com
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)
SLOS516B – OCTOBER 2007 – REVISED MARCH 2007
A.
For efficiency measurements with filter-free Class-D, RL should be an inductive load like a speaker.
Figure 34. Audio Measurement Systems
The device 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 2007, Texas Instruments Incorporated
25
Product Folder Link(s): TPA3106D1
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TPA3106D1VFPR 制造商:Texas Instruments 功能描述:Audio Power Amplifiers
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