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參數(shù)資料
| 型號： | TPA2016D2EVM |
| 廠商： | Texas Instruments |
| 文件頁數(shù)： | 4/39頁 |
| 文件大小： | 0K |
| 描述： | EVAL MODULE FOR TPA2016D2 |
| 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： | 1.72W x 2 @ 8 歐姆 |
| 電源電壓： | 2.5 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 板類型： | 完全填充 |
| 已用 IC / 零件： | TPA2016D2 |
| 已供物品： | 板，CD |
| 相關(guān)產(chǎn)品： | 296-23677-6-ND - IC AMP AUDIO PWR 2.8W D 16DSBGA 296-23677-1-ND - IC AMP AUDIO PWR 2.8W D 16DSBGA 296-23616-6-ND - IC AMP AUDIO PWR 2.8W D 16DSBGA 296-23616-1-ND - IC AMP AUDIO PWR 2.8W D 16DSBGA 296-23616-2-ND - IC AMP AUDIO PWR 2.8W D 16DSBGA 296-23677-2-ND - IC AMP AUDIO PWR 2.8W D 16DSBGA |
| 其它名稱： | 296-31088 TPA2016D2EVM-ND |
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ReleaseTime
E
Limiterthreshold
GAIN
A
C
B
D
AttackTime
Limiterthreshold
HoldTime
INPUTSIGNAL
OUTPUTSIGNAL
Limiterthreshold
SLOS524D – JUNE 2008 – REVISED AUGUST 2009........................................................................................................................................................ www.ti.com
The AGC works by detecting the audio input envelope. The gain changes depending on the amplitude, the limiter
level, the compression ratio, and the attack and release time. The gain changes constantly as the audio signal
increases and/or decreases to create the compression effect. The gain step size for the AGC is 0.5 dB. If the
audio signal has near-constant amplitude, the gain does not change. Figure 25 shows how the AGC works.
A.
Gain decreases with no delay; attack time is reset. Release time and hold time are reset.
B.
Signal amplitude above limiter level, but gain cannot change because attack time is not over.
C.
Attack time ends; gain is allowed to decrease from this point forward by one step. Gain decreases because the
amplitude remains above limiter threshold. All times are reset
D.
Gain increases after release time finishes and signal amplitude remains below desired level. All times are reset after
the gain increase.
E.
Gain increases after release time is finished again because signal amplitude remains below desired level. All times
are reset after the gain increase.
Figure 25. Input and Output Audio Signal vs Time
Since the number of gain steps is limited the compression region is limited as well. The following figure shows
how the gain changes vs. the input signal amplitude in the compression region.
12
Copyright 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): TPA2016D2
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|---|---|
| TPA2016D2RGPR | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.7-W/Ch Stereo Class-D Audio Amplifier with Dynamic Range Compression and AGC |
| TPA2016D2RGPT | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.7-W/Ch Stereo Class-D Audio Amplifier with Dynamic Range Compression and AGC |
| TPA2016D2RTJR | 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 |
| 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: |
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