TSC2117 Datasheet, PDF (121/192 Pages) Texas Instruments – Low-Power Audio Codec With Embedded miniDSP, Stereo Class-D Speaker Amplifier, and Smart Four-Wire Touch-Screen Controller

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BIT
READ/
WRITE
D7
R/W
D6
R/W
D5–D4 R/W
D3–D2 R/W
D1–D0 R/W
RESET
VALUE
0
0
01
01
00
TSC2117
Low-Power Audio Codec With Embedded miniDSP, Stereo Class-D
Speaker Amplifier, and Smart Four-Wire Touch-Screen Controller
SLAS550A – APRIL 2009 – REVISED JUNE 2009
Page 0/Register 63: DAC Data-Path Setup
DESCRIPTION
0: Left-channel DAC is powered down.
1: Left-channel DAC is powered up.
0: Right-channel DAC is powered down.
1: Right-channel DAC is powered up.
00: Left-channel DAC data path = off
01: Left-channel DAC data path = left data
10: Left-channel DAC data path = right data
11: Left-channel DAC data path = left-channel and right-channel data ((L + R)/2)
00: Right-channel DAC data path = off
01: Right-channel DAC data path = right data
10: Right-channel DAC data path = left data
11: Right-channel DAC data path = left-channel and right-channel data ((L + R)/2)
00: DAC channel volume control soft-stepping is enabled for one step per sample period.
01: DAC channel volume control soft-stepping is enabled for one step per two sample periods.
10: DAC channel volume control soft-stepping is disabled.
11: Reserved. Do not write this sequence to these bits.
BIT
D7–D4
D3
READ/
WRITE
R/W
R/W
D2
R/W
D1–D0 R/W
RESET
VALUE
0000
1
1
00
Page 0/Register 64: DAC VOLUME CONTROL
DESCRIPTION
Reserved. Write only zeros to these bits.
0: Left-channel DAC not muted
1: Left-channel DAC muted
0: Right-channel DAC not muted
1: Right-channel DAC muted
00: Left and right channels have independent volume control.
01: Left-channel volume control Is the programmed value of right-channel volume control.
10: Right-channel volume control is the programmed value of left-channel volume control.
11: Same as 00
BIT
READ/
WRITE
D7–D0 R/W
RESET
VALUE
0000 0000
Page 0/Register 65: DAC Left Volume Control
DESCRIPTION
127 to 49: Reserved. Do not write these sequences to these bits.
48: Left-channel DAC digital gain = 24 dB
47: Left-channel DAC digital gain = 23.5 dB
46: Left-channel DAC digital gain = 23 dB
...
36: Left-channel DAC digital gain = 18 dB
35: Left-channel DAC digital gain = 17.5 dB
34: Left-channel DAC digital gain = 17 dB
...
1: Left-channel DAC digital gain = 0.5 dB
0: Left-channel DAC digital gain = 0 dB
–1: Left-channel DAC digital gain = –0.5 dB
...
–126: Left-channel DAC digital gain = –63 dB
–127: Left-channel DAC digital gain = –63.5 dB
–128: Reserved
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REGISTER MAP 121