參數(shù)資料
型號(hào): TWL1101PFBR
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP48
封裝: PLASTIC, TQFP-48
文件頁(yè)數(shù): 11/31頁(yè)
文件大小: 408K
代理商: TWL1101PFBR
TWL1101
VOICE-BAND AUDIO PROCESSOR (VBAP
)
SLWS074A – MAY 1998 REVISED MARCH 1999
19
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
Table 2. Transmit Gain Control
BIT NAME
MIC AMP
MIC AMP2
TX PGA
AMOD
TOTAL TX GAIN
TP2
TP1
TP0
GAIN
MIN
TYP
MAX
UNIT
0
5.38
18
0
0.62
23.8
24
24.2
dB
0
1
5.38
18
–2
0.62
21.8
22
22.2
dB
0
1
0
5.38
18
–4
0.62
19.8
20
20.2
dB
0
1
5.38
18
–6
0.62
17.8
18
18.2
dB
1
0
–2.62
18
0
0.62
15.8
16
16.2
dB
1
0
1
–2.62
18
–2
0.62
14.8
14
14.2
dB
1
0
–2.62
18
–4
0.62
12.8
12
12.2
dB
1
–2.62
18
–6
0.62
9.8
10
10.2
dB
receive operation
receive channel gain control
The values in the receive PGA control registers control the gain in the receive path. PGA gain is set from
–6 dB to 6 dB in 1-dB steps through the I2C interface. The default receive channel gain is –6 dB.
Table 3. Receive PGA Gain Control
BIT NAME
RELATIVE GAIN
RP3
RP2
RP1
RP0
MIN
TYP
MAX
UNIT
0
5.8
6
6.2
dB
0
1
4.8
5
5.2
dB
0
1
0
3.8
4
4.2
dB
0
1
2.8
3
3.2
dB
0
1
0
1.8
2
2.2
dB
0
1
0
1
0.8
1
1.2
dB
0
1
0
–0.2
0
0.2
dB
0
1
–1.2
–1
–0.8
dB
1
0
–2.2
–2
–1.8
dB
1
0
1
–3.2
–3
–2.8
dB
1
0
1
0
–4.2
–4
–3.8
dB
1
0
1
–5.2
–5
–4.8
dB
1
0
–6.2
–6
–5.8
dB
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