參數(shù)資料
型號： TPA3005D2EVM
廠商： Texas Instruments
文件頁數(shù)： 13/31頁
文件大小： 0K
描述： EVAL MODULE FOR TPA3005D2
標(biāo)準(zhǔn)包裝： 1
放大器類型： D 類
輸出類型： 2 通道（立體聲）
在某負(fù)載時最大輸出功率 x 通道數(shù)量： 6W x 2 @ 8 歐姆
電源電壓： 8.5 V ~ 18 V
工作溫度： -40°C ~ 85°C
板類型： 完全填充
已用 IC / 零件： TPA3005D2
已供物品： 板
產(chǎn)品目錄頁面： 877 (CN2011-ZH PDF)
相關(guān)產(chǎn)品： TPA3005D2PHPRG4-ND - IC AMP AUDIO PWR 6W STER 48TQFP
TPA3005D2PHPG4-ND - IC AMP AUDIO PWR 6W STER 48TQFP
TPA3005D2PHP-ND - IC AMP AUDIO PWR 6W STER 48TQFP
296-17058-6-ND - IC AMP AUDIO PWR 6W STER 48TQFP
296-17058-1-ND - IC AMP AUDIO PWR 6W STER 48TQFP
296-17058-2-ND - IC AMP AUDIO PWR 6W STER 48TQFP
其它名稱： 296-18924
Analyzer
20 Hz 20 kHz
(a) Basic ClassAB
APA
Signal
Generator
Power Supply
Analyzer
20 Hz 20 kHz
R
L
(b) Filter-Free and Traditional Class-D
Class-D APA
Signal
Generator
Power Supply
R
L
Low-Pass RC
Filter
Low-Pass RC
Filter
(A)
(A) For efficiency measurements with filter-free class-D, RL should be an inductive load like a speaker.
SLOS427A – MAY 2004 – REVISED AUGUST 2010
www.ti.com
Figure 20. Audio Measurement Systems
The TPA3005D2 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.
DIFFERENTIAL INPUT AND BTL OUTPUT
All of the class-D APAs and many class-AB APAs have differential inputs and bridge-tied load (BTL) outputs.
Differential inputs have two input pins per channel and amplify the difference in voltage between the pins.
Differential inputs reduce the common-mode noise and distortion of the input circuit. BTL is a term commonly
used in audio to describe differential outputs. BTL outputs have two output pins providing voltages that are 180
degrees out of phase. The load is connected between these pins. This has the added benefits of quadrupling the
output power to the load and eliminating a dc blocking capacitor.
A block diagram of the measurement circuit is shown in Figure 21. The differential input is a balanced input,
meaning the positive (+) and negative (-) pins have the same impedance to ground. Similarly, the BTL output
equates to a balanced output.
20
Copyright 2004–2010, Texas Instruments Incorporated
Product Folder Link(s): TPA3005D2
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPA3005D2PHP 功能描述:音頻放大器 Stereo Med Power Filter-Free Class-D RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TPA3005D2PHPG4 功能描述:音頻放大器 Stereo Med Power Filter-Free Class-D RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TPA3005D2PHPR 功能描述:音頻放大器 Stereo Med Power Filter-Free Class-D RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TPA3005D2PHPRG4 功能描述:音頻放大器 Stereo Med Power Filter-Free Class-D RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TPA3007D1 制造商:TI 制造商全稱:Texas Instruments 功能描述:6.5-W MONO CLASS-D AUDIO POWER AMPLIFIER
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