FX614 Datasheet, PDF (2/17 Pages) CML Microcircuits – Optional Line Equalisation

Bell 202 Compatible Modem
Section
CONTENTS
Page
1.0 Features ......................................................................................................1
1.1 Brief Description.........................................................................................1
1.2 Block Diagram ............................................................................................3
1.3 Signal List ...................................................................................................3
1.4 External Components.................................................................................5
1.5 General Description....................................................................................5
1.5.1 Xtal Osc and Clock Dividers.......................................................5
1.5.2 Mode Control Logic ....................................................................6
1.5.3 Rx Input Amplifier .......................................................................6
1.5.4 Receive Filter and Equaliser.......................................................6
1.5.5 Energy Detector ..........................................................................7
1.5.6 FSK Demodulator........................................................................7
1.5.7 FSK Modulator and Transmit Filter............................................7
1.5.8 Rx Data Retiming ........................................................................9
1.5.9 Tx Data Retiming.......................................................................10
1.6 Application Notes .....................................................................................12
1.6.1 Line Interface.............................................................................12
1.7 Performance Specification.......................................................................13
1.7.1 Electrical Performance..............................................................13
1.7.2 Packaging..................................................................................16
FX614
© 1997 Consumer Microcircuits Limited
2
D/614/4