FX128D4 View Datasheet(PDF) - CML Microsystems Plc

Part Name

Description

MFG CO.

FX128D4

Audio Band Scrambler

CML Microsystems Plc 

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Audio Band Scrambler

1.5 Application

FX/MX128

Figure 3: Block Diagram of a Typical Application of the FX/MX128 (Cordless Phone)

1.6 Application Notes

Formulae for calculating the carrier frequency, upper cutoff frequency and lower cutoff frequency with

clock select pin high are as follows:

Carrier Frequency

= (3.2995kHz / 10.24MHz) * XTAL frequency

Upper Cutoff Frequency = (2.800kHz / 10.24MHz) * XTAL frequency

Lower Cutoff Frequency = (400Hz / 10.24MHz) * XTAL frequency

Formulae for calculating the carrier frequency, upper cutoff frequency and lower cutoff frequency with

clock select pin low are as follows:

Carrier Frequency

= (3.2995kHz / 3.415MHz) * XTAL frequency

Upper Cutoff Frequency = (2.800kHz / 3.415MHz) * XTAL frequency

Lower Cutoff Frequency = (400Hz / 3.415MHz) * XTAL frequency

© 2003 CML Microsystems Plc

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D/128/2

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