E2Q0015-38-71
¡ electronic components
This version: Jul. 1998
Previous version: Jan. 1998
KGF1175B/1175
¡
electronic components
KGF1175B/1175
Small-Signal Amplifier
GENERAL DESCRIPTION
The KGF1175B is a small-signal amplifier, for frequencies ranging from the UHF-band to the L-
band, that features low noise and low current operation. The KGF1175B specifications are
guaranteed to a fixed matching circuit for 5 V and 850 MHz; external impedance-matching
circuits are also required. Because of the one-input dual gate configuration, low noise, and low
operating current, the KGF1175B is ideal as a receiving-stage head amplifier for personal handy
phones.
The KGF1175 is an amplifier similar to the KGF1175B in specifications and typical properties.
Although possessing S Parameters that are slightly different from those of the KGF1175B, the
KGF1175 meets the specifications for the KGF1175B, even with the same matching circuits as
those of the KGF1175B.
FEATURES
• Low current operation: 2.5 mA (max.)
• High output power: 3 dBm (min.)
• Low noise: 2 dB (max.)
• 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)
Note: Ask our sales department for detailed requirements of the KGF1175.
1/8
OKI [ OKI ELECTRONIC COMPONETS ]
