參數(shù)資料
型號(hào): TAS5711PHPR
廠商: Texas Instruments
文件頁數(shù): 33/66頁
文件大小: 0K
描述: IC AMP AUD DGTL 20W 2CH 48HTQFP
標(biāo)準(zhǔn)包裝: 1
類型: D 類
輸出類型: 2 通道(立體聲,2.1)或 4 通道(四路)
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量: 21W x 2 @ 8 歐姆
電源電壓: 8 V ~ 26 V
特點(diǎn): 消除爆音,數(shù)字輸入,I²C,I²S,靜音,短路和熱保護(hù),關(guān)機(jī),音量控制
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 48-HTQFP(7x7)
封裝/外殼: 48-TQFP 裸露焊盤
包裝: 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁面: 860 (CN2011-ZH PDF)
其它名稱: 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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