GENERAL DESCRIPTION

The Z02205 V.22bis Modem Controller serves as the modem controller in embedded V.22bis modem applications. A complete modem can be made by adding ZiLOG data pump (Z02201), phone line interface, and the required DTE interface. The Z02205 has been designed for low-cost use and includes a glueless interface to the ZiLOG data pumps. The Z02205 is ideal for applications where small size and low power consumption are requirements.

FEATURES

• Includes AT command set interpreter in on-chip ROM—

no external memory required

• Supports Tone dial or Pulse dial

• Call progress monitoring controls

• Handshake controls

• Guard Tone controls

• Line quality monitoring and Auto-Retrain

• Auto-Dial and Auto-Answer

• Glueless interface to Z02201 modem data pump

• Watch-Dog Timer (WDT)/Power-On Reset (POR)

• Type-I Caller ID

• Dynamic power management

• CMOS design for low power consumption

• 0°C to +70°C commercial temperature range

• 28-pin DIP, SOIC package

• 4.5V to 5.5V operating range