Data
sheet
www.bookham.com
Thinking RF solutions
GaAs MMIC Power
Amplifier T/R Switch for
1.7 2.7GHz Wireless
Applications
The P35-4775-1 GaAs MMIC contains a two stage power
amplifier, 10dB step attenuator and Tx/Rx switch. This
device is designed to complement the P35-4712 wireless
LAN transceiver MMIC in applications requiring transmit
powers up to 20dBm.
Features
No external biasing or matching
components required
22dBm Output Power
PCMCIA compatible surface
mount plastic package
10dB power level step with no
degradation in intermodulation
performance
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www.bookham.com
Thinking RF solutions
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Parameters
Conditions Min
Typ
Max
Units
Gain (dB)
-
20
-
dB
Gain flatness with frequency
-
1.5
-
dB
Gain variation over temperature
-20C to +70C
-
1.0
-
dB
Return losses
-
10
-
dB
Noise figure
-
4.5
-
dB
Saturated output power
Vdd = +5V
-
22
-
dBm
1dB Compression point (P-1dB)
Vdd = +5V
-
18
-
dBm
(High power setting)
Vdd = +7V
-
20
-
dBm
Variation of P-1dB over temp.
-20C to +70C
-
-
-
dB
Supply currents
Vdd s
-
140
-
mA
Vgg s
-
1
-
mA
Level control
-
10
-
dB
Rx switch loss
-
1.0
-
dB
Electrical Performance
All characteristics applicable over the frequency range 1.7 to 2.7GHz. RF ports are referenced to a characteristic
impedance of 50
. Vdd bias is +5V and Vgg is 5V, unless otherwise stated.
Typical Chip Performance @ 2.4GHz (25C)
Functional Block Diagram
Typical Chip Performance @ 2.4GHz (25C)
Start .5000 GHz
Stop 5.5000 GHz
CH2 S
21
Log MAG
5dB/
1: 20.368 dB
2.4004 GHz
1
0dB
Tx/Rx
(Antenna)
Rx
RFout
Tx
RFin
Start .5000 GHz
Stop 5.5000 GHz
CH1 S
11
Log MAG
5dB/
1: -11.65 dB
2.4004 GHz
0dB
1
1
0dB
CH1 S
22
Log MAG
5dB/
1: -13.562dB
2.4004 GHz
Start .5000 GHz
Stop 5.5000 GHz
CH2 S
21
Log MAG
5dB/
1: -1.0086 dB
2.4004 GHz
1
0dB
Start .5000 GHz
Stop 5.5000 GHz
CH2 S
21
Log MAG
5dB/
1: -1.0086 dB
2.4004 GHz
1
0dB
Start .5000 GHz
Stop 5.5000 GHz
CH1 S
11
Log MAG
5dB/
1: -11.541 dB
2.4004 GHz
0dB
1
1
0dB
CH1 S
22
Log MAG
5dB/
1: -13.788 dB
2.4004 GHz
P35-4775-1
Absolute Maximum Ratungs
Truth Table
Ordering Information
P35-4775-1
Pin Function
Pin
Function
1 Vgg
8
P
level
2 GND
9
Rx
out
3 PA
Enable
10
Rx
4 GND
11
GND
5 P
level
12
Vdd
6 Tx
13
GND
7 T/R
common
14
PA
in
www.bookham.com
463/SM/00080/000 Issue 2
Bookham Technology 2003 Bookham is a registered trademark of Bookham Technology plc
10.1 max. (0.396)
14 13 12 11 10 9
8
1 2 3 4 5 6
7
0.4 (0.016)
Dimensions in mm (inches)
4.0 max. (0.157)
5.2 max.
(0.205)
6.2 max.
(0.244)
1.27 (0.05)
Tx/Rx
(Antenna)
Rx
RFout
Tx
RFin
P35-4775-1
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.
1. N.B. If power level control is not required, P level can
be linked to Tx and P level to RX.
Storage Temperature
-65C to 150C
Operating Ambient Temp.
-20C to =70C
Maximum RF Input
+20dBm
Maximum Vdd
+8V
Maximum Vgg
-6V
Soldering Temperature
+250C for 5 sec
Channel Temperature
+150C
PA enable
Tx
Rx P level P level
Mode of
operation
0V
0V
-5V
0V -5V
Transmit,
High Power
0V
0V
-5V
-5V 0V
Transmit,
Low Power
-5V
-5V
0V
-5V 0V
Receive
-5V
X
-5V
X
X
Standby
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