Quadrature Modulator
CMX993/CMX993W
2
Block Diagrams
Input
Amplifier
VCC
VCC
VCC
VCC
VCC
VCC
VCC
1
2
3
4
5
6
7
A1QP
A1QN
A1QO
A2QP
Filter
Amplifier
Divide by 2
or
Divide by 4
Ground VEE
VDD
A2QO
DVSS
MODQP
MODQN
MOP
Mixer
Gain
Control
MODIN
MODIP
MON
VREF
A2IO
Bandgap
BVREF
VDDIO
Filter
Amplifier
A2IP
A1IO
A1IN
A1IP
CDATA
CSN
C-BUS
Control
Interface
Input
Amplifier
100k
SCLK
RESETN
External Reset
CMX993
Figure 1 CMX993 Block Diagram
Input
Amplifier
VCC
VCC
VCC
VCC
VCC
VCC
VCC
1
2
3
4
5
6
7
A1QP
A1QN
A1QO
A2QP
A2QN
A2QO
Filter
Amplifier
Divide by 2
or
Divide by 4
Ground VEE
VDD
DVSS
MODQP
MODQN
MOP
Mixer
Gain
Control
MODIN
MODIP
MON
VREF
A2IO
A2IN
A2IP
A1IO
A1IN
A1IP
Bandgap
BVREF
VDDIO
Filter
Amplifier
CDATA
CSN
C-BUS
Control
Interface
Input
Amplifier
100k
SCLK
RESETN
External Reset
CMX993W
Figure 1a CMX993W Block Diagram
2013 CML Microsystems Plc
4
D/993/10
CMLMICRO [ CML MICROCIRCUITS ]
