Datasheet
TSC2101
SLAS392D− JUNE 2003 − REVISED MAY 2005
www.ti.com
71
BIT FUNCTION
READ/
WRITE
RESET
VALUE
NAME
D7−D5 AGCTG_CELL 000 R/W AGC Target Gain for Cell−phone Input.
These three bits set the AGC’s targeted ADC output level.
000 => −5.5 dB
001 => −8.0 dB
010 => −10 dB
011 => −12 dB
100 => −14 dB
101 => −17 dB
110 => −20 dB
111 => −24 dB
D4−D1 AGCTC_CELL 0000 R/W AGC Time Constant for Cell Input.
These four bits set the AGC attack and decay time constants. Time constants remain
the same irrespective of any sampling frequency
Attack time Decay time
(ms) (ms)
0000 8 10
0001 11 100
0010 16 100
0011 20 100
0100 8 200
0101 11 200
0110 16 200
0111 20 200
1000 8 400
1001 11 400
1010 16 400
1011 20 400
1100 8 500
1101 11 500
1110 16 500
1111 20 500
D0 AGCEN_CELL 0 R/W AGC Enable for Cell−phone Input
0 => AGC is off for Cell−phone input
1 => AGC is on for Cell−phone input
(Cell PGA is controlled by AGC
REGISTER 25H: Driver Power-Down Status
Note: All values reflected in control register 25H/page2 are valid only if short circuit is not detected (bit D1 of
control register 1DH/page2 is set to 0)
BIT NAME
RESET
VALUE
READ/
WRITE
FUNCTION
D15 SPK1FL 1 R SPK1 Driver Power-down Status
0 => SPK1 driver not powered down.
1 => SPK1 driver powered down.
D14 SPK2FL 1 R SPK2 Driver Power-down Status
0 => SPK2 driver not powered down.
1 => SPK2 driver powered down.
D13 HNDFL 1 R OUT32N (Handset) Driver Power-down Status
0 => OUT32N driver not powered down.
1 => OUT32N driver powered down.
D12 VGNDFL 1 R VGND Driver Power-down Status
0 => VGND driver not powered down.
1 => VGND driver powered down.
D11 LSPKFL 1 R Loudspeaker Driver Power-down Status
0 => Loudspeaker driver not powered down.
1 => Loudspeaker driver powered down.
D10 CELLFL 1 R Cell−phone Output (CP_OUT) Driver Power-down Status
0 => Cell-phone output driver not powered down.
1 => Cell-phone output driver powered down.