Evaluation Kit for CMX990
EV9900A
Parallel
Control
Interface
External Reference
Input
Temp
Sensor
Uncommitted
buffer amplifiers
Optional Elements
(Default = Unpopulated)
VCTCXO
Optional paths
Temp
Sensor
Aux VCO
Coupler
TX OUT
RF ANT
RX IN
CMX990
TX PA
TXFB
TX VCO
External
LO
Inputs
RX MIX IN
Power
Detector
PIN
Switch
Main VCO
(Module)
Optional
Filter /
Attenuator
Discrete Main
Crystal
Filter
VCO
LNA
BPF
IF OUT
IF IN
Figure 1 – Block Diagram
© 2007 CML Microsystems Plc
2
UM9900A/3