COBHAM VEPA-2W, Operation Manual, Page: 7 / 21

100-M0167X2 7 of 21
GMS Inc. doing business as Cobham Tactical Communications and Surveillance
www.cobham.com/tcs
2. ABSOLUTE MAX RATINGS
Table 1 – ABSOLUTE MAX RATINGS
MAX MOMENTARY RF INPUT COFDM 6 dBm
MAX SUPPLY VOLTAGE 35 Vdc
MAX CONTINUOS COFDM PWR 2 W
MAX CONTINUOUS FM PWR 3 W
MAX PA_ENABLE VOLTAGE 6.5 Vdc
CAUTION: 2-3 dBm is the typical input PWR for operation at 2 W. The PA will survive a momentary 3 dB
overdrive. Larger overdrives will trigger the protection circuit (see section 4.2)
3. SPECIFICATIONS
Table 2 – General Specifications:
Parameter Specification
DC input voltage (Vdc) 9-32
Mechanical Dimension
(without heat-sink) 2.1 "L x 3.0 "W x 0.6 "H
5.3 cm x 7.6 cm x1.52 cm
Weight lbs 0.300
grams 136
Base-plate Temperature -20 °C to + 70 °C
Operating Humidity 95% Non-condensing
Control Connector (Header)
9pin 1.25mm JST
SM09B-GHS-TB
FAULT 2 PIN 1
FAULT 1 PIN 2
MODE SELECT PIN 3
+5 VDC (OUTPUT) PIN 4
PA ENABLE (3-5Vdc) PIN 5
Vcc (9-32Vdc) PIN 6
Vcc (9-32Vdc) PIN 7
GND PIN 8
GND PIN 9
RF Connectors SMA female
NOTES:
To select High Efficiency MODE (LOW CURRENT) leave Pin 3 open.
To select High Linearity MODE (HIGH MER) connect Pins 3 and 4. Or connect 3-5 Vdc to Pin3.
PA ENABLE is LVTTL compatible.
Pins 8 and 9 are internally connected to chassis.