HC4P5509A1R3060
Description
The HC4P5509A1R3060 telephone Subscriber Line Interface Circuit integrates most of the BORSCHT functions on a monolithic IC.
Key Features
- 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 Ring Trip Detection
- Selective Power Denial to Subscriber
- Voice Path Active During Power Denial
- On Chip Op Amp for 2-Wire Impedance Matching
Applications
- Solid State Line Interface Circuit for PBX or Central Office Systems, Digital Loop Carrier Systems
