CMX661D4 View Datasheet(PDF) - CML Microsystems Plc
Part Name
Description
MFG CO.
'CMX661D4' PDF : 16 Pages View PDF
Pair Gain Dual SPM Detector
CMX661
1.6 Application Notes
1.6.1 Signal Input Configurations
Figure 3 shows how the input amplifiers can be connected as differential mode or common mode
amplifiers, according to the application.
Figure 3 Example Input Configurations
External components are necessary to generate the bias voltage for the input op-amps. (The voltage
labelled VBIAS in Figure 3). This could be a potential divider consisting of two 15kΩ resistors and a 1.0µF
capacitor to decouple the output.
1.6.2 Crystal/Clock Distribution
The CMX661 requires a 3.579545MHz crystal. With the exception of the crystal, all oscillator
components are incorporated on chip.
1.6.3 Channel 1 and Channel 2 Output Format
Figure 4 illustrates the output format, which is the same for both channels.
Figure 4 Detector Output Format
© 2002 CML Microsystems Plc
9
D/661/3
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