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參數資料
| 型號： | TWL1103PBS |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP32 |
| 封裝： | PLASTIC, QFP-32 |
| 文件頁數： | 15/32頁 |
| 文件大小： | 476K |
| 代理商： | TWL1103PBS |
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TWL1103
VOICE-BAND AUDIO PROCESSOR (VBAP
)
SLWS108A – JULY 2000 – JANUARY 2001
22
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
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 – 6dB
to 6 dB in 1-dB steps through the I2C interface. The default receive channel gain is –1 dB.
Table 5. 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
sidetone gain control
The values in the sidetone PGA control registers control the sidetone gain. Sidetone gain is set from –12 dB
to – 24 dB in 2-dB steps through the I2C interface. Sidetone can be muted by setting bit 7 of the power control
register. The default sidetone gain is –12 dB.
Table 6. Sidetone Gain Control
BIT NAME
RELATIVE GAIN
ST2
ST1
ST0
MIN
TYP
MAX
UNIT
0
–12.2
–12
–11.8
dB
0
1
–14.2
–14
–13.8
dB
0
1
0
–16.2
–16
–15.8
dB
0
1
–18.2
–18
–17.8
dB
1
0
– 20.2
– 20
–19.8
dB
1
0
1
– 22.2
– 22
– 21.8
dB
1
0
– 24.2
– 24
– 23.8
dB
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TWL1103PBSR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TWL1103TPBSQ1 | 功能描述:音頻 DSP Auto Cat Voice-Band Audio Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube |
| TWL1103TPBSRQ1 | 功能描述:音頻 DSP Auto Cat Voice-Band Audio Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube |
| TWL1103T-Q1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Automotive Catalog Voice-Band Audio Processor (VBAP) |
| TWL1106 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:VOICE-BAND AUDIO PROCESSOR (VBAPa?￠) |
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