TLV320AIC28
SLAS418B FEBRUARY 2004 REVISED MAY 2005
www.ti.com
61
REGISTER 20H: Audio Control 5
BIT
NAME
RESET
VALUE
READ/
WRITE
FUNCTION
D15
DIFFIN
0
R/W
Single-ended or Differential Output Selection.
0 => Single-ended output (headset/lineout) selected for SPK1 and SPK2 drivers
1 => Differential output (handset) selected for SPK1 and OUT32N drivers
Note: When bit D15=1, both SPK1 and OUT32N drivers should be powerup. Otherwise the
AIC28 automatically powerdown both SPK1 and OUT32N drivers.
D14D13
DAC2SPK1
00
R/W
DAC Channel Routing to SPK1 (Single-ended)/ SPK1OUT32N (Differential)
00 => No routing from DAC to SPK1/ SPK1OUT32N
01 => DAC left routed to SPK1/SPK1OUT32N
10 => DAC right routed to SPK1/SPK1OUT32N
11 => DAC (left + right)/2 routed to SPK1/SPK1OUT32N
D12
AST2SPK1
0
R/W
Analog Sidetone Routing to SPK1 (Single-ended)/SPK1OUT32N (Differential)
0 => No routing from analog sidetone to SPK1/SPK1OUT32N
1 => Analog sidetone routed to SPK1/SPK1OUT32N
D11
BUZ2SPK1
0
R/W
Buzzer PGA Routing to SPK1 (Single-ended)/ SPK1OUT32N (Differential)
0 => No routing from buzzer PGA to SPK1/SPK1OUT32N
1 => Buzzer PGA routed to SPK1/ SPK1OUT32N
D10
KCL2SPK1
0
R/W
Keyclick Routing to SPK1 (Single-ended)/SPK1OUT32N (Differential)
0 => No routing from keyclick to SPK1/SPK1OUT32N
1 => Keyclick routed to SPK1/SPK1OUT32N
D9
CPI2SPK1
0
R/W
Cellphone Input Routing to SPK1 (Single-ended)/SPK1OUT32N (Differential)
0 => No routing from cell-phone input to SPK1/SPK1OUT32N
1 => Cell phone input routed to SPK1/SPK1OUT32N
D8D7
DAC2SPK2
00
R/W
DAC Channel Routing to SPK2 (Valid for Only Single-ended)
00 => No routing from DAC to SPK2
01 => DAC left routed to SPK2
10 => DAC right routed to SPK2
11 => DAC (left + right)/2 routed to SPK2
D6
AST2SPK2
0
R/W
Analog Sidetone Routing to SPK2 (Valid for Only Single-ended)
0 => No routing from analog sidetone to SPK2
1 => Analog sidetone routed to SPK2
D5
BUZ2SPK2
0
R/W
Buzzer PGA Routing to SPK2 (Valid for Only Single-ended)
0 => No routing from buzzer PGA to SPK2
1 => Buzzer PGA routed to SPK2
D4
KCL2SPK2
0
R/W
Keyclick Routing to SPK2 (Valid for Only Single-ended)
0 => No routing from keyclick to SPK2
1 => Keyclick routed to SPK2
D3
CPI2SPK2
0
R/W
Cellphone Input Routing to SPK2 (Valid for Only Single-ended)
0 => No routing from cell-phone input to SPK2
1 => Cellphone input routed to SPK2
D2
MUTSPK1
1
R/W
Mute Control for SPK1 (Single-ended)/SPK1OUT32N (Differential)
0 => SPK1/SPK1OUT32N is not muted.
1 => SPK1/SPK1OUT32N is muted.
D1
MUTSPK2
1
R/W
Mute Control for SPK2 (Valid for Only Single-ended)
0 => SPK2 is not muted.
1 => SPK2 is muted.
D0
HDSCPTC
0
W
Headphone Shortcircuit Protection Control
0 => Enable shortcircuit protection
1 => Disable shortcircuit protection