参数资料
型号: TAS5711PHPR
厂商: Texas Instruments
文件页数: 33/66页
文件大小: 0K
描述: IC AMP AUD DGTL 20W 2CH 48HTQFP
标准包装: 1
类型: D 类
输出类型: 2 通道(立体声,2.1)或 4 通道(四路)
在某负载时最大输出功率 x 通道数量: 21W x 2 @ 8 欧姆
电源电压: 8 V ~ 26 V
特点: 消除爆音,数字输入,I²C,I²S,静音,短路和热保护,关机,音量控制
安装类型: 表面贴装
供应商设备封装: 48-HTQFP(7x7)
封装/外壳: 48-TQFP 裸露焊盘
包装: 标准包装
产品目录页面: 860 (CN2011-ZH PDF)
其它名称: 296-25564-6
2
s
m
2
s
m
AVDD/DVDD
PDN
PVDD
RESET
T0420-05
3V
8V
6V
I C
2
2ms
0ns
www.ti.com
SLOS600A – DECEMBER 2009 – REVISED AUGUST 2010
Figure 58. Power Loss Sequence
Recommended Command Sequences
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 3 V.
2.
Initialize digital inputs and PVDD supply as follows:
Drive RESET = 0, PDN = 1, and other digital inputs to their desired state while ensuring that
all are never more than 2.5 V above AVDD/DVDD. Wait at least 100 s, drive RESET = 1,
and wait at least another 13.5 ms.
Ramp up PVDD to at least 8 V while ensuring that it remains below 6 V for at least 100 s
after AVDD/DVDD reaches 3 V. Then wait at least another 10 s.
3.
Trim oscillator (write 0x00 to register 0x1B) and wait at least 50 ms.
4.
Configure the DAP via I2C (see Users's Guide for typical values).
5.
Configure remaining registers.
6.
Exit shutdown (sequence defined below).
Normal Operation
The following are the only events supported during normal operation:
1.
Writes to master/channel volume registers.
2.
Writes to soft mute register.
3.
Enter and exit shutdown (sequence defined below).
Note: Event 3 is not supported for 240 ms + 1.3 × tstart after trim following AVDD/DVDD powerup ramp
(where tstart is 300 ms when mid-Z ramp is enabled and is otherwise specified by register 0x1A).
Copyright 2009–2010, Texas Instruments Incorporated
39
Product Folder Link(s): TAS5711
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