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參數(shù)資料
| 型號： | TLV320AIC28RGZ |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC48 |
| 封裝： | 7 X 7 MM, PLASTIC, QFN-48 |
| 文件頁數(shù)： | 62/85頁 |
| 文件大小： | 1053K |
| 代理商： | TLV320AIC28RGZ |
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TLV320AIC28
SLAS418B FEBRUARY 2004 REVISED MAY 2005
www.ti.com
65
BIT
FUNCTION
READ/
WRITE
RESET
VALUE
NAME
D7D5
AGCTG_CELL
000
R/W
AGC Target Gain for Cellphone 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
D4D1
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)
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 Cellphone Input
0 => AGC is off for Cellphone input
1 => AGC is on for Cellphone 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
Cellphone Output (CP_OUT) Driver Power-down Status
0 => Cell-phone output driver not powered down.
1 => Cell-phone output driver powered down.
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