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参数资料
| 型号： | TLV320AIC22PT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封装： | ROHS COMPLIANT, PLASTIC, LQFP-48 |
| 文件页数： | 44/55页 |
| 文件大小： | 782K |
| 代理商： | TLV320AIC22PT |
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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
相关PDF资料 |
PDF描述 |
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| TLV320AIC22PTR | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| TLV320AIC23BGQE | SPECIALTY CONSUMER CIRCUIT, PBGA80 |
| TLV320AIC23BIGQE | SPECIALTY CONSUMER CIRCUIT, PBGA80 |
| TLV320AIC23BIPW | SPECIALTY CONSUMER CIRCUIT, PDSO28 |
| TLV320AIC23BPW | SPECIALTY CONSUMER CIRCUIT, PDSO28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TLV320AIC22PTR | 功能描述:接口—CODEC DUAL VOIP CODEC RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel |
| TLV320AIC23 | 制造商:TI 制造商全称:Texas Instruments 功能描述:STereo Audio CODEC, 8- to 96kHz, With Integrated Headphone Amplifier |
| TLV320AIC23_06 | 制造商:TI 制造商全称:Texas Instruments 功能描述:Stereo Audio CODEC, 8-to 96-kHz, With Integrated Headphone Amplifier |
| TLV320AIC23B | 制造商:TI 制造商全称:Texas Instruments 功能描述:Stereo Audio CODEC, 8-to 96-kHz, With Integrated Headphone Amplifier |
| TLV320AIC23B_06 | 制造商:TI 制造商全称:Texas Instruments 功能描述:Stereo Audio CODEC, 8-to 96-kHz, With Integrated Headphone Amplifier |
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