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| 型号： | TAS5709PHPG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 20.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| 封装： | 7 X 7 MM, GREEN, PLASTIC, HTQFP-48 |
| 文件页数： | 26/60页 |
| 文件大小： | 1210K |
| 代理商： | TAS5709PHPG4 |
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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
Recommended Command Sequences
SLOS599A – NOVEMBER 2008 – REVISED SEPTEMBER 2009 ..................................................................................................................................... www.ti.com
Figure 37. Power Loss Sequence
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):
Ch4 source select (0x21)
Biquads (0x29-36 and 0x58-5F)
DRC parameters (0x3A-46)
Bank select (0x50)
Mixers and gains (0x51-57)
32
Copyright 2008–2009, Texas Instruments Incorporated
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相关代理商/技术参数 |
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| TAS5709PHPR | 功能描述:音频放大器 20W Stereo I2S input Aud Pwr Amp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TAS5709PHPRG4 | 功能描述:音频放大器 20W Stereo I2S input Aud Pwr Amp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TAS5710 | 制造商:TI 制造商全称:Texas Instruments 功能描述:20-W STEREO DIGITAL AUDIO POWER AMPLIFIER |
| TAS5710EVM | 功能描述:音频 IC 开发工具 TAS5710EVM Eval Mod RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
| TAS5710PHP | 功能描述:音频放大器 20W St Closed-loop I2S Audio Amp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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