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TAS2557 Datasheet(PDF) 65 Page - Texas Instruments

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Part # TAS2557
Description  5.7-W Class-D Mono Audio Amplifier with Class-H Boost and Speaker Sense
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TAS2557 Datasheet(HTML) 65 Page - Texas Instruments

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TAS2557
www.ti.com
SLASEC2 – NOVEMBER 2016
Product Folder Links: TAS2557
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Copyright © 2016, Texas Instruments Incorporated
12.3.39 ASI1_FORMAT (book=0x00 page=0x01 address=0x01) [reset=10h]
Configures the ASI1 format, wordlength, and tristate.
Figure 84. ASI1_FORMAT Register Address: 0x01
7
6
5
4
3
2
1
0
ASI1_MODE[2:0]
ASI1_LENGTH[1:0]
Reserved
ASI1_TRISTAT
E
RW-0h
RW-2h
RW-0h
RW-0h
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 62. ASI1 Format Field Descriptions
Bit
Field
Type
Reset
Description
7-5
ASI1_MODE[2:0]
RW
0h
The ASI1 Input mode format is set to
0 = I2S
1 = DSP
2 = RJF , For non-zero values of ASI1_OFFSET1, LJF is
preferred
3 = LJF
4 = MonoPCM
5-15 = Reserved
4-3
ASI1_LENGTH[1:0]
RW
2h
Sets the ASI1 input word-length to
0 = 16bits
1 = 20bits
2 = 24bits
3 = 32bits
2-1
Reserved
RW
0h
Reserved
0
ASI1_TRISTATE
RW
0h
Tri-stating of DOUT for the extra ASI1_BCLK cycles after Data
Transfer is over for a frame is
0 = Disabled
1 = Enabled
12.3.40 ASI1_OFFSET_1 (book=0x00 page=0x01 address=0x03) [reset=0h]
Configures the ASI input offset. Offset is measured with respect to WCLK-rising edge in DSP Mode. Offset is not
supported for RJF mode
Figure 85. ASI1_OFFSET_1 Register Address: 0x03
7
6
5
4
3
2
1
0
ASI1_OFFSET1[7:0]
RW-0h
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 63. ASI1 Offset Field Descriptions
Bit
Field
Type
Reset
Description
7-0
ASI1_OFFSET1[7:0]
RW
0h
ASI1_OFFSET1[7:0]
12.3.41 ASI1_BUSKEEP (book=0x00 page=0x01 address=0x05) [reset=0h]
Configures the buskeeper operation.
Figure 86. ASI1_BUSKEEP Register Address: 0x05
7
6
5
4
3
2
1
0
ASI1_BKP
Reserved
RW-0h
RW-0h
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset


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