E2Q0011-38-71
¡ electronic components
This version: Jul. 1998
Previous version: Jan. 1998
KGF1146
¡
electronic components
KGF1146
Small-Signal Amplifier
GENERAL DESCRIPTION
The KGF1146 is a two-stage small-signal UHF-band amplifier that features low current opera-
tion, high output power, and high isolation. The KGF1146 specifications are guaranteed to a fixed
matching circuit for 5 V and 850 MHz; external impedance-matching circuits are also required.
Because of the high isolation, the KGF1146 is an ideal part for a VCO-buffer amplifiers and an
intermediate-stage amplifier for personal handy phones, such as cellular phones.
FEATURES
• Low current operation: 2.5 mA (max.)
• High output power: 1.5 dBm (min.)
• High isolation: –40 dB
• Self-bias circuit configuration with built-in source capacitor
• Package: 4PSOP
PACKAGE DIMENSIONS
1.8±0.1
0.85±0.05
0.6
+0.1
–0.05
0.4
+0.1
–0.05
1.1±0.15
0.36 0.74
3.0±0.2
1.5±0.15
0.3 MIN
0 to 0.15
Package material
1.9±0.1
2.8±0.15
Lead frame material
0.125
+0.03
–0
Epoxy resin
42 alloy
Solder plating
5
mm
or more
Pin treatment
Solder plate thickness
(Unit: mm)
1/7
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