2 TO 4 GHz IMAGE REJECTION OR I/Q MIXERS
MODELS: IR0204LC2A, IR0204LC2B, IR0204LC2C AND IR0204LC2Q
FEATURES
• RF/LO Coverage ............ 2 to 4 GHz
• IF Operation .................. DC to 0.5 GHz
• LO Power Range ............ +10 to +13 dBm
• Conversion Loss ............. 6 dB Typical
• Image Rejection ............. 25 dB Typical
MITEQ’s IR series of image rejection mixers is useful for wideband test equipment or in ultra-broadband
receivers requiring rejection of an unwanted sideband of signal or noise following a low-noise front-end amplifier.
These mixers are also useful as linear single-sideband upconverters by operating in the reverse mode. Higher
RF input power versions are available with proportional increases in LO power. Greater image rejection is
also available in selected bandwidths, including the IRE series for the 2 to 8 and 6 to 18 GHz bands.
ELECTRICAL SPECIFICATIONS
INPUT PARAMETERS
RF frequency range
RF VSWR (RF = -10 dBm, LO = +10 dBm)
LO frequency range
LO power range
LO VSWR (RF = -10 dBm, LO = +10 dBm)
TRANSFER CHARACTERISTICS
Conversion loss (Notes 1 and 2)
Single-sideband noise figure
Image rejection (Note 1)
LO-to-RF isolation
LO-to-IF isolation
Input power at 1 dB compression
Input two-tone third-order intercept point
OUTPUT PARAMETERS
IF frequency (image rejection mode)
LO = +13 dBm
LO = +13 dBm
CONDITION
IR0204LC2A
IR0204LC2B
IR0204LC2C
IR0204LC2Q
RF < LO
CONDITION
RF > LO
CONDITION
UNITS
GHz
Ratio
GHz
dBm
Ratio
UNITS
dB
dB
dB
dB
dB
dBm
dBm
UNITS
MHz
MHz
MHz
MHz
Ratio
MIN.
20
40
100
DC
1.5:1
18
20
MIN.
2
+10
+12
2.5:1
TYP.
6
8
25
30
25
+6
+16
TYP.
MAX.
40
80
200
500
MAX.
7.5
MIN.
2
2:1
4
+13
TYP.
MAX.
4
IF frequency (QIFM, I/Q demodulator mode)
IF VSWR (RF = -10 dBm, LO = +10 dBm)
13
IR0204LC2A TYPICAL DATA
VSWR
(LO = +10 dBm)
0
5:1
VSWR (RATIO)
4:1
3:1
2:1
1:1
LO VSWR
IMAGE REJECTION
(LO = +10 dBm)
IMAGE REJECTION (dB)
3.6
4
10
20
30
40
50
RF VSWR
2
2.4
2.8
3.2
FREQUENCY (GHz)
CONVERSION LOSS
(IF = 30 MHz, LO = +10 dBm)
2
2.4
2.8
3.2
FREQUENCY (GHz)
ISOLATION (LO TO RF)
(LO = +10 dBm)
3.6
4
0
CONVERSION LOSS (dB)
10
ISOLATION (dB)
2
2.4
2.8
3.2
FREQUENCY (GHz)
3.6
4
20
30
40
50
0
10
20
30
40
50
2
2.4
2.8
3.2
FREQUENCY (GHz)
3.6
4
MAXIMUM RATINGS
Specifications taken at .......................... +25°C
Operating temperature .......................... -54 to +85°C
Storage temperature ............................ -65 to +125°C
AVAILABLE OPTIONS
High dynamic range operation
Integrated IF amplifier available
GENERAL NOTES
1. Standard catalog unit aligned and tested for
guaranteed RF > LO performance. RF < LO
guaranteed performance is available, please
contact MITEQ.
2. Add 3 dB to conversion loss for Q option
(DC to 500 MHz, I/Q outputs).
3. Guaranteed at midband RF/LO.
OUTLINE DRAWINGS
IR0204LC2A, B and C
2.00
.075
.500
RF
IN
100 Davids Drive
IRO102A16B
S/N XXXXXX
IR0204LC2Q
2.00
.075
1.850
RF
IN
100 Davids Drive
IRO102A16B
S/N XXXXXX
1.850
RF<LO
.250
.750
.500
1.00
I
.250
.750
1.00
IF
OUT
RF>LO
LO
IN
LO
IN
Q
.100 DIA. MTG. HOLE
(TYP. 2 PLACES)
.063
.375
.250
.100 DIA. MTG. HOLE
(TYP. 2 PLACES)
.063
.375
.250
.50
.50
NOTES:
1. TERM UNUSED IF
PORT INTO 50 OHMS.
2. MATERIAL: ALUMINUM
FINISH: NICKEL
TYPE SMA FIELD REPLACEABLE
FEMALE CONNECTOR
(TYP. 4 PLACES)
NOTES:
1. TERM UNUSED IF
PORT INTO 50 OHMS.
TYPE SMA FIELD REPLACEABLE
FEMALE CONNECTOR
(TYP. 4 PLACES)
IMAGE REJECTION
QIFM, I/Q DEMODULATOR
14
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