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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