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參數(shù)資料
| 型號(hào)： | TAS5715PHPR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 41.5 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| 封裝： | 7 X 7 MM, GREEN, PLASTIC, HTQFP-48 |
| 文件頁數(shù)： | 30/74頁 |
| 文件大?。?/td> | 2771K |
| 代理商： | TAS5715PHPR |
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Threshold
INPUT
Threshold
AttackRate
ReleaseRate
W0003-01
OUTPUT
SLOS645 – AUGUST 2010
www.ti.com
Attack and release events occur only when level remains above or below the threshold continuously during the
time-constant time. And the constant time is controlled by the attack/release rate. If the attack/release rate is
short, DRC operates frequently. Attack time defines how fast to cut the signal to bring it under the threshold.
Similarly, release time defines how fast to release the cut back to normal. Attack and release are shown in
Figure 50. Attack/Release
The device should be in all-channel shutdown when DRC parameters are changed. The TAS57X GDE (GUI)
takes care of this when changing DRC parameters.
TAS5715 supports two-band and one-band DRC. Two-band DRC helps to get the maximum sound levels out of
small, thin, low-cost speakers. It protects speakers from being overdriven/damaged and stops cabinet rattle
without sacrificing loudness.
In the two-band DRC mode, audio is split into to high-band and low-band. The bands have separate thresholds
and attack/decay filters.
Configuration is as shown in Figure 51. DRC1 (upper band) and DRC2 (lower band) can be programmed using
GDE. Default values for attack and decay filters cover most of the cases. Only thresholds require updating,
depending on the power levels for the upper and lower bands.
36
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): TAS5715
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| TAS5715PHP | 41.5 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
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| TAS5716PAP | 20.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64 |
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| TAS5716 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:20-W Stereo Digital-Audio Power Amplifier With EQ and DRC |
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| TAS5716PAPR | 功能描述:音頻放大器 20W St Closed-loop I2S 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 |
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| TAS5717EVM | 功能描述:音頻 IC 開發(fā)工具 TAS5717EVM Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
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