Product Summary

Bell 202 Compatible Modem

Parametrics

1200bits/sec 1/2 Duplex Bell 202 compatible Modem with:· Optional 5bits/sec and 150bits/sec Back Channel· Optional 1200bits/sec Data Retiming Facility· to 5.5V Supply; at 3V ''Zero-Power'' Mode; 1μ A· Optional Line Equalisation· to +85°C Operating Temperature· 16-pin SOIC and DIL Packages· 3.58MHz Xtal/Clock Rate

Features

The is a low power CMOS integrated circuit for the reception or transmission of asynchronous 1200bits/sec data and is suitable for use in Bell 202 type systems. It is also capable of generating the or 150bits/sec ''back channel''. The device incorporates an optional Tx and Rx data retiming function that removes the need for a UART in the associated μC when operating 1200bits/sec. An optional line equaliser is incorporated into the receive path, this is controlled by an external logic level. The FX614 may be used in a wide range of telephone telemetry systems. With a low operating voltage 3.0V, a very low current ''sleep'' mode (1μA) and an operating current of 1mA the device is ideal for portable, terminal and line powered applications. A 3.58MHz standard Xtal/Clock rate is required and the device operates from to 5.5V supply. Both SOIC (D4) and Plastic DIL (P3) 16-pin package types are available.