CML Semiconductor Products FX614 Bell 202 Compatible Modem Datasheet

The FX614 is a low power CMOS integrated circuit from CML Semiconductor Products for receiving or transmitting 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.


CML Semiconductor Products FX614 Bell 202 Compatible Modem Datasheet - cover page
Brand
CML
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
17
File format
PDF
File size
334 KB
Published
12 June, 2012
Updated
01 October, 2023
MD5 checksum
AC31C643E3ADA2422215E32A618195F9

About this manual

The FX614 is a low power CMOS integrated circuit designed for the reception or transmission of asynchronous 1200bits/sec data in Bell 202 type systems. It features optional line equalisation and data retiming facilities to remove the need for an external UART when operating at 1200bits/sec.

What's inside

  • Features
  • Brief Description
  • Block Diagram
  • Signal List
  • External Components
  • General Description
  • Mode Control Logic
  • Performance Specification

Specifications

Data Rate1200bits/sec
Supply Voltage3.0 to 5.5V
Package Types16-pin SOIC and DIL

Frequently asked questions

What is the required clock rate for the FX614?

The device requires a 3.58MHz standard Xtal/Clock rate.

What is the operating temperature range for the FX614?

The device operates between -40°C and +85°C.

What clock rate is required for the FX614?

A 3.58MHz standard Xtal/Clock rate is required.

What delay is needed when leaving 'Zero-Power' mode?

A delay of 20ms is required before passing data to or reading from the device.

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