RF Quadrature Transceiver / RF Quadrature Receiver
CMX991/CMX992
IF Output
Tx
I/Q
T/R
Differential
Amplifiers
Input
Power Amplifier
(VC)TCXO
LO Input
Div
Integer-N
PLL
Power
Supply
External
Resonator &
Varactors
Control
Registers
C-BUS
/4
LO Input
Div
CMX991
LNA
Rx
Level
2 x IF (e.g 455kHz) Outputs
or I/Q Outputs
IF Filters
Figure 1 CMX991 – RF Quadrature Transceiver
Integer-N
PLL
Power
Supply
Differential
Amplifiers
External
Resonator &
Varactors
Control
Registers
C-BUS
/4
LO Input
Div
CMX992
T/R
SLI
From Transmitter
2 x IF (e.g 455kHz) Outputs
or I/Q Outputs
IF Filters
Figure 2 CMX992 – RF Quadrature/Low IF Receiver
2012 CML Microsystems Plc
2
D/991_992/18
CMLMICRO [ CML MICROCIRCUITS ]
