Quadrature Modulator
CMX993/CMX993W
3
Signal List
CMX993
Pin No.
CMX993W
Pin No.
Signal
Type
Name
Description
-
1
2
A2QN
A2QO
NC
I/P
O/P
NC
Amplifier 2 negative input (Q channel)
Amplifier 2 output (Q channel)
reserved, do not connect to this pin
Modulator input (Q channel)
1
2
-
3
3
MODQP
MODQN
NC
I/P
4
4
I/P
Modulator input reference (Q channel)
reserved, do not connect to this pin
Modulator negative output
5
5
NC
6
6
MON
MOP
NC
O/P
O/P
NC
7
7
Modulator positive output
8
8
reserved, do not connect to this pin
Modulator input reference (I channel)
Modulator input (I channel)
9
9
MODIN
MODIP
NC
I/P
10
11
12
-
10
-
I/P
NC
reserved, do not connect to this pin
Amplifier 2 output (I channel)
Amplifier 2 negative input (I channel)
Amplifier 2 positive input (I channel)
Amplifier 1 output (I channel)
Amplifier 1 negative input (I channel)
Amplifier 1 positive input (I channel)
Analogue supply
11
12
13
14
15
16
17
18
A2IO
A2IN
O/P
I/P
13
14
15
16
17
18
A2IP
I/P
A1IO
A1IN
O/P
I/P
A1IP
I/P
VCC1
VCC2
Power
Power
Analogue supply
Local Oscillator Negative Input (Note: when
differentially driving LOP and LON this LON pin
requires a low impedance dc path to ground
otherwise it may be decoupled to ground)
Local Oscillator Positive Input (Note: this pin
requires a low impedance dc path to ground)
19
19
LON
I/P
20
20
LOP
I/P
21
22
23
24
25
26
27
28
29
30
31
32
33
34
21
22
23
24
25
26
27
28
29
30
31
32
33
34
VCC3
VCC4
VREF
BVREF
NC
Power
Power
O/P
O/P
NC
Analogue supply
Analogue supply
Bandgap reference decoupling
Buffered VREF
reserved, do not connect to this pin
reserved, do not connect to this pin
reserved, do not connect to this pin
reserved, do not connect to this pin
Analogue supply
NC
NC
NC
NC
NC
NC
VCC5
NC
Power
NC
reserved, do not connect to this pin
reserved, do not connect to this pin
Analogue supply
NC
NC
VCC6
NC
Power
NC
reserved, do not connect to this pin
reserved, do not connect to this pin
NC
NC
2013 CML Microsystems Plc
5
D/993/10
CMLMICRO [ CML MICROCIRCUITS ]
