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參數(shù)資料
| 型號： | TLV320AIC22PTR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | ROHS COMPLIANT, PLASTIC, LQFP-48 |
| 文件頁數(shù)： | 44/55頁 |
| 文件大?。?/td> | 782K |
| 代理商： | TLV320AIC22PTR |
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TLV320AIC22
DUAL VOIP CODEC
SLAS281B – JULY 2000 – REVISED JUNE 2002
49
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
microphone, handset, and headset external connections
The microphone, headset, and handset external connections are shown in Figure 22. The suggested discrete
components, with their values, also are included.
MIC Preamp
20 k
20 k
MCINM
HEADSET Preamp
20 k
20 k
MCINP
MCBIAS
0.22
F
0.22
F
(1.5 V)
4 mA max, 2.5 V
HSINM
HSINP
0.22
F
0.22
F
MIC
<2.2 k
AVSS
<2.2 k
MIC
AVSS
TLV320
AIC22
(1.5 V)
220
AVSS
33
F
Figure 22. MIC/Handset/Headset External Connections
callerID interface
The callerID amplifier interface to the telephone line is shown in Figure 23.
The value for Rx is 365 k
(E96 series, which has 1% tolerance). Cx is 470 pF (10% tolerance) of high-voltage
rating. Voltage rating is determined based on the telecom standards of the country. The typical value is 1 kV.
The callerID input can be used as a lower performance line input. For this application, a larger value capacitor
is required for Cx.
0-dB Gain, Typ.
CINP
CINM
Rx
365 k
Rx
365 k
Cx
470 pF
Cx
470 pF
To Telephone
To RJ11
To Analog
Crosspoint
TLV320AIC22
VCOM
Figure 23. Typical Application Circuit for CallerID Amplifiers
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLV320AIC23 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:STereo Audio CODEC, 8- to 96kHz, With Integrated Headphone Amplifier |
| TLV320AIC23_06 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Stereo Audio CODEC, 8-to 96-kHz, With Integrated Headphone Amplifier |
| TLV320AIC23B | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Stereo Audio CODEC, 8-to 96-kHz, With Integrated Headphone Amplifier |
| TLV320AIC23B_06 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Stereo Audio CODEC, 8-to 96-kHz, With Integrated Headphone Amplifier |
| TLV320AIC23BGQE | 功能描述:接口—CODEC Lo-Pwr Highly Integrated Codec RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
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