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參數(shù)資料
型號： TPA2016D2RTJR
廠商： Texas Instruments
文件頁數(shù)： 5/39頁
文件大小： 0K
描述： IC AMP AUDIO PWR 2.8W D 20QFN
標(biāo)準(zhǔn)包裝： 1
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： 2.8W x 2 @ 4 歐姆
電源電壓： 2.5 V ~ 5.5 V
特點(diǎn)： 差分輸入，I²C，短路和熱保護(hù)，關(guān)機(jī)，音量控制
安裝類型： 表面貼裝
供應(yīng)商設(shè)備封裝： 20-QFN 裸露焊盤（4x4）
封裝/外殼： 20-WFQFN 裸露焊盤
包裝： 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁面： 876 (CN2011-ZH PDF)
其它名稱： 296-25430-6
Gain-dB
V
-dBV
IN
V
-dBV
O
U
T
V
-dBV
IN
Increasing
FixedGain
Decreasing
FixedGain
FixedGain=6dB
FixedGain=3dB
1:1
www.ti.com........................................................................................................................................................ SLOS524D – JUNE 2008 – REVISED AUGUST 2009
Figure 26. Input Signal Voltage vs Gain
Thus the AGC performs a mapping of the input signal vs. the output signal amplitude. This mapping can be
modified according to the variables from Table 1.
The following graphs and explanations show the effect of each variable to the AGC independently and which
considerations should be taken when choosing values.
Fixed Gain: The fixed gain determines the initial gain of the AGC. Set the gain using the following variables:
Set the fixed gain to be equal to the gain when the AGC is disabled.
Set the fixed gain to maximize SNR.
Set the fixed gain such that it will not overdrive the speaker.
Figure 27 shows how the fixed gain influences the input signal amplitude vs. the output signal amplitude state
diagram. The dotted 1:1 line is displayed for reference. The 1:1 line means that for a 1dB increase in the input
signal, the output increases by 1dB.
Figure 27. Output Signal vs Input Signal State Diagram Showing Different Fixed Gain Configurations
If the Compression function is enabled, the Fixed Gain is adjustable from –28dB to 30dB. If the Compression
function is disabled, the Fixed gain is adjustable from 0dB to 30dB.
Limiter Level: The Limiter level sets the maximum amplitude allowed at the output of the amplifier. The limiter
should be set with the following constraints in mind:
Below or at the maximum power rating of the speaker
Below the minimum supply voltage in order to avoid clipping
Figure 28 shows how the limiter level influences the input signal amplitude vs. the output signal amplitude state
diagram.
Copyright 2008–2009, Texas Instruments Incorporated
13
Product Folder Link(s): TPA2016D2
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPA2016D2RTJT 功能描述:音頻放大器 1.7-W/Ch St Class-D Audio Amp 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
TPA2016D2V1YZHR 制造商:Texas Instruments 功能描述:
TPA2016D2YZHR 功能描述:音頻放大器 1.7W/Ch Stereo Class D Aud Amp 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
TPA2016D2YZHT 功能描述:音頻放大器 1.7W/Ch Stereo Class D Aud Amp 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
TPA2016DYZHT2 制造商:Texas Instruments 功能描述:
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