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參數資料
型號: TWL1103TPBSQ1
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP32
封裝: PLASTIC, TQFP-32
文件頁數: 13/30頁
文件大小: 458K
代理商: TWL1103TPBSQ1
TWL1103T Q1
VOICEBAND AUDIO PROCESSOR (VBAP)
SGLS120B APRIL 2002 REVISED APRIL 2008
20
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
transmit operation (continued)
_
+
_
+
Vref
510 k
510 k
34 k
34 k
Ci MIC1N
Ci MIC1P
M
I
C
Rmic
MBIAS
Figure 7. Typical Microphone Interface
microphone mute function
Transmit channel muting provides 80-dB attenuation of input microphone signal. The MICMUTE function can
be selected by setting bit 6 of the power control register through the I2C interface.
transmit channel gain control
The values in the transmit PGA control registers control the gain in the transmit path. The total TX channel gain
can vary from 35.5 dB to 13.5 dB. The default total TX channel gain is 23.5 dB
Table 4. Transmit Gain Control
BIT NAME
MIC AMP1
MIC AMP2
TX PGA
GAIN
MODE
TOTAL TX GAIN
TP3
TP2
TP1
TP0
GAIN
MIN
TYP
MAX
UNIT
0
23.5
12
0
Extended
35.3
35.5
35.7
dB
0
1
23.5
12
2
Extended
33.3
33.5
33.7
dB
0
1
0
23.5
12
4
Extended
31.3
31.5
31.7
dB
0
1
23.5
12
6
Extended
29.3
29.5
29.7
dB
0
1
0
23.5
12
8
Extended
27.3
27.5
27.7
dB
0
1
0
1
23.5
12
10
Extended
25.3
25.5
25.7
dB
1
0
23.5
0
Normal
23.3
23.5
23.7
dB
1
0
1
23.5
0
2
Normal
21.3
21.5
21.7
dB
1
0
1
0
23.5
0
4
Normal
19.3
19.5
19.7
dB
1
0
1
23.5
0
6
Normal
17.3
17.5
17.7
dB
1
0
23.5
0
8
Normal
15.3
17.5
17.7
dB
1
0
1
23.5
0
10
Normal
13.3
13.5
13.7
dB
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相關代理商/技術參數
參數描述
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?¢)
TWL1106PWR 制造商:Rochester Electronics LLC 功能描述:- Bulk
TWL1107 制造商:TI 制造商全稱:Texas Instruments 功能描述:VOICE-BAND AUDIO PROCESSOR (VBAP?£a)
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