CPC5712UTR集成電路（IC）的電信規(guī)格書PDF中文資料

Description

The CPC5712 is a special purpose Voltage Monitor with Detectors integrated circuit that is used in various high-voltage telephony applications such as VoIP gateways and IP-PBXs. The device monitors the TIP/RING potential through a high-impedance divider (resistor isolation) to derive two programmable signal level detects, polarity information, and a scaled representation of the phone line voltages. In use, the resistor divider and the high input impedance of the CPC5712 make the circuit practically undetectable on the line.

Features

? CPC5712 Outputs:

? Two Independent Programmable Level Detectors with Programmable Hysteresis

? Fixed-Level Polarity Detector with Hysteresis

? Differential Linear Output

? Minimum External Components

? Excellent Common-Mode Rejection Ratio (CMRR) > 55dB

? Application circuits meet isolation requirements of worldwide telephony standards

? Worldwide telephone network compatibility

? Single Supply Operation, 3.0V to 5.5V

? High differential input impedance

? Very low common-mode input impedance

? Fixed Gain

? TTL Compatible CMOS Logic Level outputs

? Small SOP 16-Pin package

Applications

? VoIP Gateways, IP-PBX, xDSL

? TIP/RING Monitoring

? Line-In-Use Detection

? Polarity Detection for Caller ID, Enhanced 911

? Battery Detection, PSTN Check

? Non-telephony voltage level detection applications

? Instrumentation

? Industrial Controls