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Integral T/R switch
High output power
High linearity VCO
High reproducibility MMIC technology
Low cost
Available in Die form or surface mount
ceramic package
Description
The P35-4800 Gallium Arsenide Monolithic Microwave Integrated Circuit operates at X-Band and is
designed to provide low cost transmit functions in Search and Rescue Transponders (SARTS) as part of the
Global Maritime Distress and Safety System (GMDSS). The High reproducibility of the MMIC means no
post assembly alignment is required. The output power of the MMIC has been designed to meet minimum
EIRP specifications with low gain antenna and no post amplification.
The die is fabricated using MCL's F20 Gallium Arsenide MESFET MMIC process. It is fully protected using
Silicon Nitride passivation for excellent performance and reliability.
Electrical Performance
Ambient temperature = 22 鹵3 Deg C , Z
O
= 50 ohms
Parameter
Frequency range
Output power
Output Power variation
Pulling figure
Phase noise
Tuning voltage
Tuning voltage
Drain voltage
Tuning profile (Linearity)
Max tuning sensitivity
Tuning speed
Current consumption
Negative bias voltage
1
Condition
Min
9.17
25.0
-
Typ
-
26.0
-
-
-65.0
-
-
+6.1
-
300
-
-
-
-
Max
9.56
-
2.0
鹵25
-
-
4.0
-
20
-
-
500
-1
2
Units
GHz
dBm
dB
MHz
dBc/Hz
V
V
V
MHz
MHz/V
MHz/碌S
mA
V
mA
14dB Return loss
@100kHz Offset
+Vdc @ Low frequency
+Vdc @ High frequency
Vd
-
-
0.20
-
-
-
-
2000
-
-2.5
-
Negative Current Consumption
1. Transmit stand-by mode should be achieved by switching the positive (+8V) supply line to 0V
Marconi Caswell Limited, Caswell, Towcester, Northamptonshire, NN12 8EQ
Telephone:
+ 44 (0) 1327 350581
Fax:
+ 44 (0) 1327 356775
Website:
www.caswelltechnology
.com
Caswell Technology is the trading name of Marconi Caswell Limited which is a wholly owned subsidiary of Marconi plc
MCL reserves the right to update or change this specification without notice
463/SM/00044/200 Issue1
A Marconi company
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