HC55121IB中文資料瑞薩數(shù)據(jù)手冊PDF規(guī)格書

The UniSLIC14 is a family of Ultra Low Power SLICs. The feature set and common pinouts of the UniSLIC14 family positions it as a universal solution for: Plain Old Telephone Service (POTS), PBX, Central Office, Loop Carrier, Fiber in the Loop, ISDN-TA and NT1+, Pairgain and Wireless Local Loop.

Features

? Ultra Low Active Power (OHT) < 60mW

? Single/Dual Battery Operation

? Automatic Silent Battery Selection

? Power Management/Shutdown

? Battery Tracking Anti Clipping

? Single 5V Supply with 3V Compatible Logic

? Zero Crossing Ring Control

- Zero Voltage On/Zero Current Off

? Tip/Ring Disconnect

? Pulse Metering Capability

? 4 Wire Loopback

? Programmable Current Feed

? Programmable Resistive Feed

? Programmable Loop Detect Threshold

? Programmable On-Hook and Off-Hook Overheads

? Programmable Overhead for Pulse Metering

? Programmable Polarity Reversal Time

? Selectable Transmit Gain 0dB/-6dB

? 2 Wire Impedance Set by Single Network

? Loop and Ground Key Detectors

? On-Hook Transmission

? Common Pinout

? Pb-Free Plus Anneal Available (RoHS Compliant)

? HC55121

- Polarity Reversal

? HC55130

- -63dB Longitudinal Balance

? HC55140

- Polarity Reversal

- Ground Start

- Line Voltage Measurement

- 2 Wire Loopback

- -63dB Longitudinal Balance

? HC55142

- Polarity Reversal

- Ground Start

- Line Voltage Measurement

- 2.2VRMS Pulse Metering

- 2 Wire Loopback

? HC55150

- Polarity Reversal

- Line Voltage Measurement

- 2.2VRMS Pulse Metering

- 2 Wire Loopback