Z02215 Datasheet, PDF (7/74 Pages) Zilog, Inc. – Single Chip Modem with Integrated Controller, Data Pump, and Analog Front End

Z02215
Single Chip Modem with Integrated Controller, Data Pump, and AFE
1
Features
• Complete modem integrated circuit with integrated controller, data pump and An-
alog Front End (AFE) with active hybrid
• Includes an AT command set interpreter in the on-chip ROM with no external
memory required
• Programmable country parameters through AT commands or EEPROM interface
• Automatic determination of AT command speed and parity
• Includes V.14 asynchronous to synchronous conversion
• Accepts asynchronous or synchronous terminal data
• Speed matching and RTS/CTS flow control between the modem and the terminal
• Voice answer detection
– Line-In-Use detection before connection
– Pick-up detection during connections
• Supports Tone or Pulse dialing
• Call progress monitoring controls
• Guard tone controls
• Line quality monitoring and auto-retrain
• Auto-Dial and Auto-Answer
• Supports telephone dial blacklisting
• Data modem throughput to 2400 bps
– ITU V.22bis, V.23, V.22, V.21
– Bell 212A, Bell 103, Bell 202, Bell 202T
• FSK (V.23 1200/75 bps, Bell 202/Bell 202T 1200/150 bps, V.21/Bell 103 300
bps), DPSK (V.22/Bell 212A 1200 bps), or QAM Encoding (V.22bis 2400 bps)
• V.23 with Minitel line reversal
• Programmable bi-quad call progress tone detectors
• Adaptive equalization to compensate for a wide variety of line conditions
• Programmable transmit attenuation and selectable receive threshold
• Fully-programmable call progress detectors for precise call program monitoring,
including signal quality detectors, tone detectors, tone generators, and transmit
signal levels that aid in rapid country qualifications
• On-chip peripheral, a full-duplex voice band AFE with 12-bit resolution
PS001907-0904
Features