參數(shù)資料
型號(hào)： TLV320AIC24KIPFBRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP48
封裝： GREEN, PLASTIC, TQFP-48
文件頁(yè)數(shù)： 42/52頁(yè)
文件大小： 981K
代理商： TLV320AIC24KIPFBRG4
www.ti.com
CallerID Interface
0-dB Gain, Typ.
CIDI+
CIDI-
Rx
365 k
Rx
365 k
Cx
470 pF
Cx
470 pF
To Telephone
To RJ11
To Analog
Crosspoint
TLV320AIC20
VCOM
TLV320AIC20, TLV320AIC21
TLV320AIC24, TLV320AIC25
TLV320AIC20K, TLV320AIC24K
SLAS363D – MARCH 2002 – REVISED APRIL 2005
Layout and Grounding Guidelines for TLV320AIC2x (continued)
The callerID amplifier interface to the telephone line is shown in
(A).
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 decided based on the telecommunication 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.
A.
Typical Application Circuit for CallerID Amplifiers
Figure 37. Recommended Power-Supply Decoupling
The recommended power-supply decoupling for the TLV320AIC2x is shown in Figure 38. Both high frequency
and bulk decoupling capacitors are suggested. The high-frequency capacitors should be X7R type capacitors or
better. A 1-F ceramic capacitor should be used to decouple the digital power supply.
47
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