E2Q0016-38-71
¡ electronic components
This version: Jul. 1998
Previous version: Jan. 1998
KGF1191
¡
electronic components
KGF1191
Small-Signal Amplifier
GENERAL DESCRIPTION
The KGF1191 is a two-stage small-signal amplifier, with frequencies ranging from the UHF-band
to the L-band, that features low voltage operation, low current operation, high gain, and high
isolation. The KGF1191 specifications are guaranteed to a fixed matching circuit for 3 V and 850
MHz; external impedance-matching circuits are also required. Because of the high gain and high
isolation at 3 V, the KGF1191 is ideal as an intermediate-stage amplifier for portable phones.
FEATURES
• Low voltage and low current: 3 V, 5 mA (max.)
• Specifications guaranteed to a fixed matching circuit for 3 V and 850 MHz
• High linear gain: 24 dB (typ.)
• High isolation: –35 dB (typ.)
• 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)
1/13
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