FLL400IP-3
L-Band Medium & High Power GaAs FET
FEATURES
• Push-Pull Configuration
• High Power Output: 35W (Typ.)
• High PAE: 43% (Typ.)
• Broad Frequency Range: 2300 to 2500 MHz.
• Suitable for class A operation at 10V
and class AB operation at 12V
DESCRIPTION
The FLL400IP-3 is a 35 Watt GaAs FET that employs a push-pull design that
offers ease of matching, greater consistency and a broader bandwidth for high
power S-band amplifiers. This product is targeted to reduce the size and
complexity of highly linear, high power base station transmitting amplifiers.
This new product is uniquely suited for use in Wireless Local Loop (WLL) base
station amplifiers as it offers high gain, long term reliability and ease of use.
Eudyna’s stringent Quality Assurance Program assures the highest
reliability and consistent performance.
ABSOLUTE MAXIMUM RATINGS (Ambient Temperature Ta=25°C)
Parameter
Symbol
Condition
Rating
Unit
15
-5
Drain-Source Voltage
Gate-Source Voltage
Total Power Dissipation
Storage Temperature
Channel Temperature
V
V
V
V
DS
GS
Tc = 25°C
107
P
W
°C
°C
T
T
-65 to +175
+175
stg
T
ch
Eudyna recommends the following conditions for the reliable operation of GaAs FETs:
1. The drain-source operating voltage (V ) should not exceed 12 volts.
DS
2. The forward and reverse gate currents should not exceed 54.4 and -17.4 mA respectively with
gate resistance of 25Ω.
3. The operating channel temperature (T ) should not exceed 145°C.
ch
ELECTRICAL CHARACTERISTICS (Ambient Temperature Ta=25°C)
Limits
Typ.
Item
Drain Current
Symbol
Conditions
Unit
Min.
Max.
16
-
V
V
= 5V, V = 0V
GS
I
-
-
12
A
mS
V
DS
DSS
= 5V, I
= 7.2A
Transconductance
Pinch-Off Voltage
gm
6000
DS
DS
V
p
V
I
= 5V, I = 720mA -1.0
-2.0 -3.5
DS
DS
V
GSO
= -720µA
Gate-Source Breakdown Voltage
Output Power at 1 dB G.C.P.
Power Gain at 1 dB G.C.P.
Drain Current
-5
-
-
-
V
dBm
dB
A
GS
P
1dB
44.5 45.5
V
= 12V
DS
8.0
-
9.0
6.0
-
G
I
1dB
f = 2.5 GHz
= 2A
8.0
DSR
I
DS
η
-
-
Power-Added Efficiency
43
%
-
-
add
1dB
V = 10V
DS
Output Power at 1 dB G.C.P.
P
44.5
dBm
f = 2.5 GHz
= 5A (Note 1)
Power Gain at 1 dB G.C.P.
Thermal Resistance
CASE STYLE: IP
G
-
-
9.0
1.0
-
dB
I
DS
1dB
R
Channel to Case
1.4
°C/W
th
G.C.P.: Gain Compression Point
Note 1: The device shall be measured at a constant V
condition.
GS
Edition 1.5
October 2004
1