鈥?/div>
Broadband performance
Low insertion loss; 0.7dB typ at 1GHz
Ultra low DC power consumption
Fast switching speed; 3ns typical
SO14 surface mount package
Description
The P35-4245-3 is a high performance Gallium Arsenide double pole double throw RF switch. It is
suitable for use in broadband communications and instrumentation applications. A short circuit
reflective termination is presented at the isolated output of the switch. The switch is controlled by the
application of complimentary 0V/-5V or 0/-8V signals to the control lines in accordance with the truth
table below.
This die is fabricated using MCL's 0.5碌m gate length MESFET process (S20) and is fully protected using
Silicon Nitride passivation for excellent performance and reliability. This device is packaged in a low-
cost SOIC14 surface-mount plastic package.
Electrical Performance
Ambient temperature = 22鹵3
擄C
, Z
O
= 50鈩? Control voltages = 0V/-5V unless otherwise specified
Parameter
Insertion Loss
1
Isolation
1
Conditions
DC - 1GHz
1 - 2GHz
DC - 1GHz
1 - 2GHz
DC - 1GHz
1 - 2GHz
DC - 1GHz
1 - 2GHz
0/-5V Control; 50MHz
0/-5V Control; 0.5 - 2GHz
0/-8V Control; 50MHz
0/-8V Control; 0.5 - 2GHz
Min
-
-
26
23
18
10
18
10
19
22.5
20
29
-
Typ
0.7
0.9
32
29
30
25
30
25
19.5
23
21
30
3
Max
0.9
1.1
-
-
-
-
-
-
-
-
-
-
-
Units
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
ns
Input Return Loss
2
Output Return Loss
2
1dB power compression point
3
Switching Speed
50% Control to 10%90%RF
Notes
1. Insertion loss and isolation refer to each pole of the switch.
2. Return Loss measured in low loss switch state.
3. Input power at which insertion loss compresses by 1dB.
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
The data and product specifications are subject to change without notice. These devices should not be used for device qualification and production without prior notice to MCL.
463/SM/00141/200 Iss 1/2
A Marconi company
1
2
3
