Outline of E-Size Flatpack
IQF-4E Series I&Q NETWORKS
Catalog and Custom Units to 300 MHz / Octave LO Bandwidth / Low Profile, Hi-Rel Package
For further information contact MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531
PRINCIPAL SPECIFICATIONS
Model RF/LO Center †Bandwidth,
Number Frequency, fo MHz
IQF-4E-***B 10 to 300 MHz 67% of fo
†RF and Video Bandwidths are typically much greater than specified.
For complete model number, replace *** with desired LO center
frequency, fo, in MHz.
AVAILABLE OPTIONS
Phase Balance: 90° ± 3° max.
(for narrow band)
Amplitude Balance: 0.2 dB max.
Conversion Loss: 8 dB typ., 10 dB max.
Narrowband LO: see IQF-20 series
GENERAL SPECIFICATIONS
RF and LO Input Characteristics
Impedance: 50 Ω nom.
VSWR: 1.5 :1 max.
RF Power Level: 0 dBm nom.
LO Power Level +10 dBm nom.
I & Q Output Characteristics
Video Bandwidth: DC to †50 MHz nom.
Output Impedance: 50 Ω nom.
Conversion Loss
(RF to I or Q): 10 dB typ.,12 dB max.
IF Balance (I to Q)
Phase: 90° ±4° typ.,
90° ±5° max.
Amplitude: 0.25 dB typ.,
0.5 dB max.
Weight, nominal: 0.32 oz (9 g)
Operating Temp: -- 55° to +85°C
†RF and Video Bandwidths are typically much greater than specified.
General Notes:
1. I & Q networks are integrated devices that produce two
quadrature-phased, equal amplitude signals when fed by
RF and LO signals.
2. With the addition of an external IF 90° Hybrid, complete
systems are formed that are useful in image rejection and
single sideband modulators.
3. These units are also excellent as phase correlators in
closed loop applications and vector modulator
sub-systems.
4. I & Q networks can also be used in digital systems as a
QPSK demodulator where it recovers two data channels
from the incoming phase information. The QPSK input is
applied to the RF port while the recovered carrier is applied
to the LO port resulting in the two independent data outputs
at the I and Q ports.
5. Merrimac I & Q networks comply with the relevant
sections of MIL-M-28837 and may be supplied screened for
29Apr96
NOTES: 1. Tolerance on 3 place decimals ±.010(.25) except as noted.
2. Dimensions in inches over millimeters.
3. Dimensions marked with * apply only at body.
4. All unmarked pins are case ground.
