FX614 Datasheet, PDF (1/17 Pages) CML Microcircuits – Optional Line Equalisation

CML Semiconductor Products
Bell 202 Compatible Modem FX614
1.0 Features
D/614/4 October 1997
Advance Information
• 1200bits/sec 1/2 Duplex Bell 202 compatible Modem with:
• Optional 5bits/sec and
150bits/sec Back Channel
• Optional 1200bits/sec Data
Retiming Facility
• 3.0 to 5.5V Supply; 1.0mA at 3V
'Zero-Power' Mode; 1µA
• Optional Line Equalisation
• -40°C to +85°C Operating
Temperature
• 16-pin SOIC and DIL Packages
• 3.58MHz Xtal/Clock Rate
1.1 Brief Description
The FX614 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
5bits/sec 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 at 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 of
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 a 3.0V to 5.5V supply. Both SOIC (D4) and Plastic DIL (P3) 16-pin package types are available.
© 1997 Consumer Microcircuits Limited