JTP-2S Series
QUADRAPHASE MODULATORS
10 to 1000 MHz / Integrated TTL Drivers / Low Conversion Loss / Hi-Rel Hermetic Package
PRINCIPAL SPECIFICATIONS
Model
Number
JTP-2S-***B
JTP-2S-***B
Center
Frequency, f
o
.,
MHz
10 to 200
200 to 1000
RF
Input
Bandwidth
10% of f
o
10% of f
o
Amplitude
Balance,
dB, Max.
0.5
1.0
Phase Balance
@:
f
o
Band Limits
±2°
max.
±3°
max.
±4°
max.
±5°
max.
Insertion
Loss,
dB, Max.
6
9
VSWR
Max.
1.5:1
1.5:1
For complete Model Number replace *** with desired Center Frequency, f
o
in MHz.
Meri-Pac™ S-Package
™
GENERAL SPECIFICATIONS
Impedance:
50
Ω
nom.
RF Input Level:
0 dBm nom.
Modulation Sequence
TTL Data Ports 1,2: 0,0 : ref. 0°
1,0 : +270°
1,1 : +180°
0,1 : +90°
Data Bandwidth:
DC to 5 MHz nom.
(Wider Bandwidths in
larger package)
NOTES:
1. Tolerance on 3 place decimals
±
.010(.25) except as noted.
2. Dimensions in inches over millimeters.
3. Lead dimensions apply only at body.
4. All unmarked pins are case ground.
DC Power:
Weight, nominal:
Operating Temp:
+5 V @ 25 mA nom.
0.35 oz (10 g)
-- 55° to + 85°C
General Notes:
1. Units in the JTP-2S series of Quadraphase Modulators are composed of two biphase modulators with TTL
drivers, a 90° quadrature hybrid and an in-phase power combiner.
2. These devices are generally used in systems to generate QPSK coded signals. The units accept two differential
data inputs each of which independently biphase modulates an RF carrier. These are then combined to produce
a quadraphase output of 0, 90, 180 and 270 degrees.
3. Units in the JTP-2S series are available with center frequencies from 10 to 1000 MHz and having a minimum
bandwidth equal to 10% of the center frequency.
4. Merrimac Quadraphase Modulators comply with the relevant sections of MIL-M-28837 and may be supplied
screened for compliance with additional specifications for military applications requiring the highest reliability.
29Apr96
F rf t e if r to c n a t
M ERRI AC /41 Faifel Pl,W estCal
o ur h r n o ma in o t c
M
ri d .
dwel,NJ,07006 / 201- 1300 /FAX 201- 0531
l
575-
575-
MERRIMAC [ MERRIMAC INDUSTRIES, INC. ]
