HC55121IM集成电路（IC）的电信规格书PDF中文资料

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