Datasheet
TLV320AIC31
www.ti.com
............................................................................................................................................. SLAS497C – AUGUST 2006 – REVISED DECEMBER 2008
Page 0 / Register 38: High-Power Output Driver Control Register
BIT READ/ RESET DESCRIPTION
WRITE VALUE
D7-D6 R 00 Reserved. Write only 0s to these register bits.
D5-D3 R/W 000 HPRCOM Output Driver Configuration Control
000: HPRCOM configured as differential of HPROUT 001: HPRCOM configured as constant VCM
output
010: HPRCOM configured as independent single-ended output
011: HPRCOM configured as differential of HPLCOM 100: HPRCOM configured as external
feedback with HPLCOM as constant VCM output
101 – 111: Reserved. Do not write these sequences to these register bits.
D2 R/W 0 Short Circuit Protection Control
0: Short-circuit protection on all high-power output drivers is disabled
1: Short-circuit protection on all high-power output drivers is enabled
D1 R/W 0 Short Circuit Protection Mode Control
0: If short-circuit protection enabled, it will limit the maximum current to the load
1: If short-circuit protection enabled, it will power down the output driver automatically when a
short is detected
D0 R 0 Reserved. Write only '0' to this register bit.
Page 0 / Register 39: Reserved Register
BIT READ/ RESET DESCRIPTION
WRITE VALUE
D7 – D0 R 00000000 Reserved. Do not write to this register.
Page 0 / Register 40: High-Power Output Stage Control Register
BIT READ/ RESET DESCRIPTION
WRITE VALUE
D7 – D6 R/W 00 Output Common-Mode Voltage Control
00: Output common-mode voltage = 1.35 V
01: Output common-mode voltage = 1.5 V
10: Output common-mode voltage = 1.65 V
11: Output common-mode voltage = 1.8 V
D5 – D2 R/W 0000 Reserved. Write only 0000 to these bits.
D1 – D0 R/W 00 Output Volume Control Soft-Stepping
00: Output soft-stepping = one step per F
S
01: Output soft-stepping = one step per two F
S
10: Output soft-stepping disabled
11: Reserved. Do not write this sequence to these register bits.
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