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PRELIMINARY DATA
November, 20 2002
DB-900-100W
100W / 26V / 869-894 MHz PA using 2x PD57060S
The
LdmoST
FAMILY
ORDER CODE
DB-900-100W
ABSOLUTE MAXIMUM RATINGS (T
CASE
= 25oC)
Symbol Parameter Value Unit
V
DD
Supply voltage 32 V
I
D
Drain Current 12
A
P
DISS
Power dissipation at Tcase = +85°C 145 W
T
CASE
Operating Case Temperature -20 to +85
o
C
P
amb
Max. Ambient Temperature +55
o
C
RF POWER AMPLIFIER DEMOBOARD USING
TWO N-CHANNEL ENHANCEMENT-MODE
LATERAL MOSFETs
• EXCEL L ENT THERMA L STABI LITY
• COMMON SOURCE CONFIGURATION
• P
OUT
= 100 W min. with 13 dB gain over
869-894 MHz
• 10:1 LOAD VSWR CAPABILITY
• BeO FREE AMPLIFIER
TYPICAL CDMA PERFORMANCE:
IS-95 CDMA / 9ch FWD
Pout = 20W
Gain = 13 dB
Nd = 22%
ACPR (750 KHz) : -45 dBc
ACPR (1.98 MHz) : -60 dBc
DESCRIPTION
The DB-900-100W is a com mon source N-Channel enhancement-mode lateral Field-Effect RF
power amplifier designed for IS-54/-136 & IS-95
base station applications.
The DB-900-100W is designed in cooperation
with Europeenne de Telecomunications S.A.
(www.etsa.rf), for high gain and broadband
performance operating in comm on source mode
at 26 V, capable of withstanding load mismatch
up to 10:1 all ph ases and with harmo nics lower
than 30 dBc.
MECH. SPECIFICATION L=80 mm W=50 mm H=10 mm
DB-900-100W
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Symbol Test Conditions Min. Typ. Max. Unit
FREQ. Frequency Range 869 894 MHz
Gain P
OUT
= 100 W
12.5 13 dB
P
1dB
Over frequency range: 869 - 894 MHz 100 W
Flatness
Over frequency range and @ P
OUT
= 100 W
+/- 0.5 dB
Flatness
P
OUT
from 0.1W to 100 W
1dB
ND at P
1dB
P
1dB
40 45 %
IRTL
Input return Loss P
OUT
from 0.1W to 100 W
-20 -15 dB
Harmonic
P
OUT
= 100 W
-40 -30 dBc
VSWR
Load Mismatch all phases @ P
OUT
= 100 W
10:1
Spurious
10:1 VSWR all phases and P
OUT
from 0.1 to 100W
-76 dBc
IMD
3
P
OUT
= 100 WPEP
-25 dBc
ELECTRICAL SPECIFICATION (T
amb
= +25oC, Vdd = 26V, Idq = 2 x 200 mA)
TYPICAL CDMA PERFORMANCE IS 95 / 9ch FWD (Vdd = 26V, Idq = 350mA)
F requency
Pout
CH PWR
Pout
CH PWR
ACPR
-750 KHz
ACPR
+750 K Hz
ACPR
-1.98 MHz
ACPR
+1.98 M HzItotal
Nd
(M Hz) (W) (dBm) (dBc) (dBc) (dBc) (dBc) (A) (%)
865 10 40.0 53.4 50.8 67.0 67.0
880 10 40.0 54.2 51.7 68.6 68.3
895 10 40.0 53.2 51.7 69.0 69.0
865 20 43.0 45.0 45.0 64.0 64.0
880 20 43.0 45.1 45.4 64.7 64.7
895 20 43.0 45.2 45.7 66.8 66.5
2.5
3.5
15.4
22.0