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KGF1521

¡ electronic components

This version: Jul. 1998

Previous version: Jan. 1998

KGF1521

Small-Signal Amplifier

GENERAL DESCRIPTION

The KGF1521 is a high-performance GaAs FET small-signal amplifier for L-band frequencies that

features low voltage operation, low current operation, low noise, and low distortion. The

KGF1521 specifications are guaranteed to a fixed matching circuit for 3 V and 1.9 GHz; external

impedance-matching circuits are also required. Because of its high 3rd-order intercept point,

even at its low operating current, the KGF1521 is ideal as a small-signal amplifier for L-band

personal handy phones, such as digital keying cordless phones that require low intermodulation

properties.

FEATURES

• Low voltage and low current operation: 3 V, 2.5 mA (max.)

• Specifications guaranteed to a fixed matching circuit for 3 V, 1.9 GHz

• Low noise figure: 1.8 dB (typ.) at 1.9 GHz

• High linear gain: 12.5 dB (typ.) at 1.9 GHz

• High output power: 1 dB compression point = 0 dBm (typ.) at 1.9 GHz

• Low distortion: 3rd-order intercept point = 12 dBm (typ.) at 1.9 GHz

• Self-bias circuit configuration with built-in source capacitor

• Package: 4PSOP

PACKAGE DIMENSIONS

E2Q0018-38-71

–0.05

–0.05

1.8±0.1

0.85±0.05

1.9±0.1

2.8±0.15

0 to 0.15

–0

1.1±0.15

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