參數(shù)資料
型號: TAS5711PHPR
廠商: Texas Instruments
文件頁數(shù): 46/66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(guān)機,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
VOLUME REGISTERS (0x07, 0x08, 0x09, 0x0A)
Step size is 0.5 dB.
Master volume
– 0x07 (default is mute)
Channel-1 volume
– 0x08 (default is 0 dB)
Channel-2 volume
– 0x09 (default is 0 dB)
Channel-3 volume
– 0x0A (default is 0 dB)
Table 12. Volume Registers (0x07, 0x08, 0x09, 0x0A)
D
FUNCTION
7
6
5
4
3
2
1
0
0
24 dB
0
1
0
0 dB (default for individual channel volume) (1)
1
0
–103 dB
1
Soft mute
(1)
Default values are in bold.
VOLUME CONFIGURATION REGISTER (0x0E)
Bits
Volume slew rate (Used to control volume change and MUTE ramp rates). These bits control the
D2–D0:
number of steps in a volume ramp.Volume steps occur at a rate that depends on the sample rate of
the I2S data as follows
Sample Rate (KHz)
Approximate Ramp Rate
8/16/32
125 us/step
11.025/22.05/44.1
90.7 us/step
12/24/48
83.3 us/step
Table 13. Volume Control Register (0x0E)
D7
D6
D5
D4
D3
D2
D1
D0
FUNCTION
1
1
0
Reserved (1)
0
Subchannel (ch4) volume = ch1 volume(2)(1)
1
Subchannel volume = register 0x0A(2)
0
Ch3 volume = ch2 volume(1)
1
Ch3 volume = register 0x0A
0
Volume slew 512 steps (43-ms volume ramp time at 48 kHz)
0
1
Volume slew 1024 steps (85-ms volume ramp time at 48 kHz) (1)
0
1
0
Volume slew 2048 steps (171- ms volume ramp time at 48 kHz)
0
1
Volume slew 256 steps (21-ms volume ramp time at 48 kHz)
1
X
Reserved
(1)
Default values are in bold.
(2)
Bits 6:5 can be changed only when volume is in MUTE [master volume = MUTE (register 0x07 = 0xFF)].
50
Copyright 2009–2010, Texas Instruments Incorporated
Product Folder Link(s): TAS5711
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