FX602D4 Ver la hoja de datos (PDF) - CML Microsystems Plc

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FX602D4

Calling line identifier

CML Microsystems Plc 

Calling Line Identifier

FX602

1.6 Application Notes

1.6.1 'On-Hook' Operation

Figures 8a to 8c below illustrate the line signalling and FX602 I/O signals for typical 'On-Hook' (Calling Line ID)

BT and Bellcore system use.

The BT Tone Alert signal consists of simultaneous 2130Hz and 2750Hz tones. The 'Chan Seize' signal consists

of a '1010..' FSK bit sequence in all cases.

Note that the Data Retiming function is not used in these examples (RXCK is kept high).

Figure 8a : BT System signals

Figure 8b : Bellcore System signals

© 1998 Consumer Microcircuits Limited

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