Description
The HC-5509B3999-003 telephone Subscriber Line Interface Circuit integrates most of the BORSCHT functions on a monolithic IC.
Features
- DI Monolithic High Voltage Process.
- Compatible with Worldwide PBX and CO Performance Requirements.
- Controlled Supply of Battery Feed Current with Programmable Current Limit.
- Operates with 5V Positive Supply (VB+).
- Internal Ring Relay Driver and a Utility Relay Driver.
- High Impedance Mode for Subscriber Loop.
- High Temperature Alarm Output.
- Low Power Consumption During Standby Functions.
- Switch Hook, Ground Key, and.
HC-5509B Datasheet
