CS61577-IP1 Datasheet - Cirrus Logic

General Description
   The CS61577 is a drop-in replacement for the CS61574, and combines the complete analog transmit and receive line interface for T1 or E1 applications in a low power, 28-pin device operating from a +5V supply. The CS61577 supports processor-based or standalone operation and interfaces with industry standard T1 and E1 framers.

FEATUREs
• Provides Analog Transmission Line
   Interface for T1 and E1 Applications
• Drop-in Replacement for CS61574 with
   the Following Enhancements:
   - Lower Power Consumption
   - Transmitter Short-Circuit
      Current Limiting
   - Greater Transmitter Immunity
      to Line Reflections
   - Software Selection Between 75Ω and
      120Ω E1 Output Options
   - Internally Controlled E1 Pulse Width
   - B8ZS/HDB3/AMI Encoder/Decoder

APPLICATIONs
• Interfacing Network Equipment such as DACS and
   Channel Banks to a DSX-1 Cross Connect
• Building Channel Service Units