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| 型號： | TAS5707APHP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 20.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| 封裝： | 7 X 7 MM, GREEN, PLASTIC, HTQFP-48 |
| 文件頁數(shù)： | 26/57頁 |
| 文件大?。?/td> | 1000K |
| 代理商： | TAS5707APHP |
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2
s
m
2
s
m
2
s
m
AVDD/DVDD
PDN
PVDD
RESET
T0420-01
3V
8V
6V
I S
2
I C
2
2ms
0ns
SLOS556B – NOVEMBER 2008 – REVISED NOVEMBER 2009
www.ti.com
Figure 37. Power Loss Sequence
Recommended Command Sequences
The DAP has two groups of commands. One set is for configuration and is intended for use only during
initialization. The other set has built-in click and pop protection and may be used during normal operation while
audio is streaming. The following supported command sequences illustrate how to initialize, operate, and
shutdown the device.
Initialization Sequence
Use the following sequence to power-up and initialize the device:
1.
Hold all digital inputs low and ramp up AVDD/DVDD to at least 3V.
2.
Initialize digital inputs and PVDD supply as follows:
Drive RESETZ=0, PDNZ=1, and other digital inputs to their desired state while ensuring that
all are never more than 2.5V above AVDD/DVDD. Provide stable and valid I2S clocks
(MCLK, LRCLK, and SCLK). Wait at least 100us, drive RESETZ=1, and wait at least another
13.5ms.
Ramp up PVDD to at least 8V while ensuring that it remains below 6V for at least 100us after
AVDD/DVDD reaches 3V. Then wait at least another 10us.
3.
Trim oscillator (write 0x00 to register 0x1B) and wait at least 50ms.
4.
Configure the DAP via I2C (see Users's Guide for typical values):
Biquads (0x29-36)
DRC parameters (0x3A-3C, 0x40-42, and 0x46)
Bank select (0x50)
5.
Configure remaining registers
6.
Exit shutdown (sequence defined below).
32
Copyright 2008–2009, Texas Instruments Incorporated
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| TAS5707APHPR | 功能描述:音頻放大器 20W STEREO Dig Audio Pwr 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 |
| TAS5707EVM | 功能描述:音頻 IC 開發(fā)工具 TAS5707EVM Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| TAS5707LPHPR | 制造商:Texas Instruments 功能描述:20-W STEREO I2S AUDIO POWER AMPLIFIER WI |
| TAS5707PHP | 功能描述:音頻放大器 20W Stereo I2S Audio Power 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 |
| TAS5707PHPR | 功能描述:音頻放大器 20W Stereo I2S Audio Power 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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