Data
sheet
www.bookham.com
Thinking RF solutions
GaAs MMIC SPDT
Reflective Switch,
DC - 3GHz
The P35-4211-1 is a high performance Gallium Arsenide
monolithic single pole double throw RF switch, suitable for use
in broadband communications and instrumentation
applications. An open circuit reflective termination is presented
at the isolated output of the switch. Control is effected by the
application of complimentary 0V and -5V levels to the control
lines in accordance with the truth table below.
This die is fabricated using Bookham Technology's 0.5mm 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 surface-
mount plastic SO8 package. It is also available as a bare die
(see P35-4211-0).
Features
Broadband performance
Low insertion loss;
0.6dB typ at 1GHz
Ultra low DC power consumption
Fast switching speed; 3ns typical
Low cost SO8 plastic package
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www.bookham.com
Thinking RF solutions
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Electrical Performance
Ambient temperature = 22 3 C , Zo = 50 ohms, Control voltages = 0V/-5V unless otherwise stated.
P35-4211-1
Parameter Conditions
Min
Typ
Max
Units
Insertion Loss
DC - 1GHz
-
0.6
0.8
dB
1 - 3GHz
-
1.2
1.4
dB
Isolation
DC - 1GHz
23
26
-
dB
1 - 3GHz
13
16
-
dB
Input Return Loss
1
DC - 1GHz
18
20
-
dB
1 - 3GHz
10
12
-
dB
Output Return Loss
1
DC - 1GHz
18
20
-
dB
1 - 3GHz
10
12
-
dB
1dB power compression point
2
0/-5V Control; 50MHz
-
20
-
dBm
0/-5V Control; 1GHz
-
29
-
dBm
0/-8V Control; 50MHz
-
22
-
dBm
0/-8V Control; 1GHz
-
31
-
dBm
Switching Speed
50% Control to 10%90%RF
-
3
8
ns
Third Order Intercept
3
500MHz
-
47
-
dBm
Notes
1. 1. Return Loss measured in low loss switch state
2. Input power at which insertion loss compresses by 1dB Input power 10dBm/tone
Typical Performance at 22 C
Insertion Loss
Isolation
Input Return Loss
Output Return Loss
Absolute Maximum Ratings
Max control voltage
-8V
Max I/P power
+33 dBm
Operating temperature
-40C to +85C
Storage temperature
-65C to +150C
Package Outline
Electrical Schematic
Pin Details
Switching Truth Table
Pin
Function
1
Control A
2
RF IN
3
Ground
4
Control B
5
RF2
6
Ground
7
Ground
8
RF 1
Ordering Information
P35-4211-1
www.bookham.com
463/SM/00059/200 Iss 2/2
Bookham Technology 2003 Bookham is a registered trademark of Bookham Technology plc
MMICS
Bookham Technology plc
Caswell
Towcester
Northamptonshire
NN12 8EQ
UK
Tel: +44 (0) 1327 356 789
Fax: +44 (0) 1327 356 698
rfsales@bookham.com
Important Notice
Bookham Technology has a policy of
continuous improvement. As a result
certain parameters detailed on this flyer
may be subject to change without notice.
If you are interested in a particular product
please request the product specification
sheet, available from any RF sales
representative.
P35-4211-1
A
B
RF IN-RF1
RF IN-RF 2
0V
-5V
Low Loss
Isolated
-5V
0V
Isolated
Low Loss
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