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TAS5731MPHPR 데이터시트(PDF) 50 Page - Texas Instruments

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부품명 TAS5731MPHPR
상세설명  2 * 30-W DIGITAL AUDIO POWER AMPLIFIER WITH DSP AND 2.1 MODE
PDF  68 Pages
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

TAS5731MPHPR 데이터시트(HTML) 50 Page - Texas Instruments

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TAS5731M
SLOS838B – JULY 2013 – REVISED NOVEMBER 2013
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 11. Volume Registers (0x07, 0x08, 0x09, 0x0A)
D
D
D
D
D
D
D
D
FUNCTION
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
24 dB
0
0
1
1
0
0
0
0
0 dB (default for individual channel volume) (1)
1
1
1
1
1
1
1
0
–103 dB
1
1
1
1
1
1
1
1
Soft mute (default for master volume) (1)
(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 12. 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
0
0
Volume slew 512 steps (43-ms volume ramp time at 48 kHz)
–
–
–
–
–
0
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
1
Volume slew 256 steps (21-ms volume ramp time at 48 kHz)
–
–
–
–
–
1
X
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 © 2013, Texas Instruments Incorporated
Product Folder Links :TAS5731M



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