Skyworks Solutions, Inc. [781] 376-3000
Fax [781] 376-3100 Email sales@skyworksinc.com www.skyworksinc.com
1
Specifications subject to change without notice. 2/02A
3639 GHz GaAs MMIC
Driver Amplifier
Features
Single Bias Supply Operation (5 V)
7 dB Typical Small Signal Gain
14 dBm Typical P
1 dB
Output Power
0.25 m Ti/Pd/Au Gates
100% On-Wafer RF and DC Testing
100% Visual Inspection to MIL-STD-883
MT 2010
Chip Outline
AA038P1-00
Description
Alpha's single-stage, reactively-matched 3639 GHz
GaAs MMIC driver amplifier has a typical small signal
gain of 7 dB with a typical P
1 dB
of 14 dBm at 38 GHz.
The chip uses Alpha's proven 0.25 mm MESFET
technology, and is based upon MBE layers and electron
beam lithography for the highest uniformity and
repeatability. The FETs employ surface passivation to
ensure a rugged, reliable part with through-substrate via
holes and gold-based backside metallization to facilitate
a conductive epoxy or eutectic die attach process. All
chips are screened for gain, output power and
S-parameters prior to shipment for guaranteed
performance. Designed for 3639 GHz digital radio band.
Parameter
Condition
Symbol
Min.
Typ.
2
Max.
Unit
Drain Current
V
D
= 5 V
I
DS
50
60
mA
Small Signal Gain
F = 3639 GHz
G
6
7
dB
Input Return Loss
F = 3639 GHz
RL
I
6
10
dB
Output Return Loss
F = 3639 GHz
RL
O
6
10
dB
Output Power at 1 dB Gain Compression
F = 38 GHz
P
1 dB
12
14
dBm
Saturated Output Power
F = 38 GHz
P
SAT
14
16
dBm
Thermal Resistance
1
JC
280
C/W
Electrical Specifications at 25C (V
DS
= 5 V)
0.000
0.087
0.501
0.815
0.000
0.127
0.409
1.208
1.335
Dimensions indicated in mm.
All DC pads are 0.1 x 0.1 mm and RF pads are 0.07 mm wide.
Chip thickness = 0.1 mm.
Characteristic
Value
Operating Temperature (T
C
)
-55C to +90C
Storage Temperature (T
ST
)
-65C to +150C
Bias Voltage (V
D
)
7 V
DC
Power In (P
IN
)
16 dBm
Junction Temperature (T
J
)
175C
Absolute Maximum Ratings
1. Calculated value based on measurement of discrete FET.
2. Typical represents the median parameter value across the specified
frequency range for the median chip.
3639 GHz GaAs MMIC Driver Amplifier
AA038P1-00
2
Skyworks Solutions, Inc. [781] 376-3000
Fax [781] 376-3100 Email sales@skyworksinc.com www.skyworksinc.com
Specifications subject to change without notice. 2/02A
S-Parameters (dB)
Frequency (GHz)
Typical Small Signal Performance
S-Parameters (V
DS
= 5 V)
-20
-15
-10
-5
0
5
10
32
33
34
35
36
37
38
39
40
Gain (S
21
)
Input Return Loss (S
11
)
Reverse Isolation (S
12
)
Output Return Loss (S
22
)
Typical Performance Data
Typical Power Performance
(V
DS
= 5 V, Frequency = 38 GHz)
2
4
6
8
10
12
14
16
-5
-3
-1
1
3
5
7
9
11
Input Power (dBm)
Output Power (dBm) Gain (dB)
20
25
30
35
40
45
50
55
Drain Current (mA)
Gain
P
Out
I
D
V
DS
= 5 V
RF IN
RF OUT
0.01
F
50 pF
Bias Arrangement
Detail A
RF IN
RF OUT
V
DS
SEE
DETAIL A
Circuit Schematic
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