
TSC2117
Low-Power Audio Codec With Embedded miniDSP, Stereo Class-D
Speaker Amplifier, and Smart Four-Wire Touch-Screen Controller
www.ti.com
SLAS550A – APRIL 2009 – REVISED JUNE 2009
Page 1/Register 40: HPL Driver
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7
R/W
0
Reserved. Write only zero to this bit.
D6–D3
R/W
0000
0000: HPL driver PGA = 0 dB
0001: HPL driver PGA = 1 dB
0010: HPL driver PGA = 2 dB
...
1000: HPL driver PGA = 8 dB
1001: HPL driver PGA = 9 dB
1010–1111: Reserved. Do not write these sequences to these bits.
D2
R/W
0
0: HPL driver is muted.
1: HPL driver is not muted.
D1
R/W
1
0: HPL driver is weakly driven to a common mode during power down.
1: HPL driver is high-impedance during power down.
D0
R
0
0: Not all programmed gains to HPL have been applied yet.
1: All programmed gains to HPL have been applied.
Page 1/Register 41: HPR Driver
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7
R/W
0
Reserved. Write only zero to this bit.
D6–D3
R/W
0000
0000: HPR driver PGA = 0 dB
0001: HPR driver PGA = 1 dB
0010: HPR driver PGA = 2 dB
...
1000: HPR driver PGA = 8 dB
1001: HPR driver PGA = 9 dB
1010–1111: Reserved. Do not write these sequences to these bits.
D2
R/W
0
0: HPR driver is muted.
1: HPR driver is not muted.
D1
R/W
1
0: HPR driver is weakly driven to a common mode during power down.
1: HPR driver is high-impedance during power down.
D0
R
0
0: Not all programmed gains to HPR have been applied yet.
1: All programmed gains to HPR have been applied.
Page 1/Register 42: SPL Driver
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7–D5
R/W
000
Reserved. Write only zeros to these bits.
D4–D3
R/W
00
00: Left-channel class-D driver output stage gain = 6 dB
01: Left-channel class-D driver output stage gain = 12 dB
10: Left-channel class-D driver output stage gain = 18 dB
11: Left-channel class-D driver output stage gain = 24 dB
D2
R/W
0
0: Left-channel class-D driver is muted.
1: Left-channel class-D driver is not muted.
D1
R/W
0
Reserved. Write only zero to this bit.
D0
R
0
0: Not all programmed gains to left-channel class-D driver have been applied yet.
1: All programmed gains to left-channel class-D driver have been applied.
REGISTER MAP
133