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KGF1181B
electronic components
This version: Jul. 1998
Previous version: Jan. 1998
electronic components
KGF1181B
Medium-Power Amplifier
GENERAL DESCRIPTION
The KGF1181B is a two-stage medium-power UHF-band amplifier that features high gain, high
output power, and low power operation. The internally matched 50 W input and output eliminate
external impedance-matching circuits. All specifications for this device are guaranteed at 5 V and
850 MHz. Because of the high gain and high output power, the KGF1181B is ideal as a
transmitter-intermediate-stage amplifier for personal handy phones.
FEATURES
Internally matched 50 W input and output
High linear gain: 20 dB (min.)
High output power: 11.5 dBm (min.)
Low current operation: 40 mA (max.)
Self-bias circuit configuration with built-in source capacitor
Package: 4PSOP
PACKAGE DIMENSIONS
E2Q0021-38-72
1.50.15
3.00.2
0.3 MIN
0.6
+0.1
0.05
0.4
+0.1
0.05
1.80.1
0.850.05
1.90.1
2.80.15
0 to 0.15
0.125
+0.03
0
1.10.15
0.36 0.74
(Unit: mm)
Package material
Pin treatment
Solder plate thickness
Lead frame material
Epoxy resin
Solder plating
5 mm or more
42 alloy
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