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參數(shù)資料
型號: TAS5711PHPR
廠商: Texas Instruments
文件頁數(shù): 35/66頁
文件大?。?/td> 0K
描述: IC AMP AUD DGTL 20W 2CH 48HTQFP
標準包裝: 1
類型: D 類
輸出類型: 2 通道(立體聲,2.1)或 4 通道(四路)
在某負載時最大輸出功率 x 通道數(shù)量: 21W x 2 @ 8 歐姆
電源電壓: 8 V ~ 26 V
特點: 消除爆音,數(shù)字輸入,I²C,I²S,靜音,短路和熱保護,關機,音量控制
安裝類型: 表面貼裝
供應商設備封裝: 48-HTQFP(7x7)
封裝/外殼: 48-TQFP 裸露焊盤
包裝: 標準包裝
產(chǎn)品目錄頁面: 860 (CN2011-ZH PDF)
其它名稱: 296-25564-6
SLOS600A – DECEMBER 2009 – REVISED AUGUST 2010
www.ti.com
Shutdown Sequence
Enter:
1.
Write 0x40 to register 0x05.
2.
Wait at least 1 ms + 1.3 × tstop (where tstop is specified by register 0x1A).
3.
If desired, reconfigure by returning to step 4 of initialization sequence.
Exit:
1.
Write 0x00 to register 0x05 (exit shutdown command may not be serviced for as much as 240 ms
after trim following AVDD/DVDD powerup ramp).
2.
Wait at least 1 ms + 1.3 × tstart (where tstart is 300 ms when mid-Z ramp is enabled and is
otherwise specified by register 0x1A).
3.
Proceed with normal operation.
Power-Down Sequence
Use the following sequence to powerdown the device and its supplies:
1.
If time permits, enter shutdown (sequence defined above); else, in case of sudden power loss,
assert PDN = 0 and wait at least 2 ms.
2.
Assert RESET = 0.
3.
Drive digital inputs low and ramp down PVDD supply as follows:
Drive all digital inputs low after RESET has been low for at least 2 s.
Ramp down PVDD while ensuring that it remains above 8 V until RESET has been low for at
least 2 s.
4.
Ramp down AVDD/DVDD while ensuring that it remains above 3 V until PVDD is below 6 V and
that it is never more than 2.5 V below the digital inputs.
40
Copyright 2009–2010, Texas Instruments Incorporated
Product Folder Link(s): TAS5711
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