This version: Jul. 1998 Previous version: Jan. 1998 E2Q0045-38-71 ¡ electronic components KGF2701 ¡ electronic components KGF2701 Wide-Band Amplifier GENERAL DESCRIPTION The KGF2701, housed in a SMD-type 8-pin ceramic package, is a two-stage amplifier that features flat and high gain over a wide range of frequencies, internal input and output matching, and high output power. The internally matched 50 W input and output eliminate external impedance-matching circuits. The KGF2701 is ideal as a medium-power amplifier in the frequency range of 0.8 GHz to 4 GHz. FEATURES • Flat gain property from 0.8 GHz to 4 GHz • Input and output 50 W matched impedance • Single power supply: 5 V (typ.) • High linear gain: 16 dB (min.) • High output power: 14 dBm (min.) • Low noise: 4.5 dB (typ.) • Package: 8PFP PACKAGE DIMENSIONS 1.27±0.2 0.5±0.15 2.0±0.3 INDEX MARK 7.0±0.3 3.0±0.15 5.0±0.2 4.5±0.2 2.0±0.3 0.63±0.15 0.10 +0.05 –0 4.5±0.2 5.0±0.2 1.7±0.2 Package material Lead frame material Pin treatment (Unit: mm) plate thickness Al203 Fe-Ni-Co alloy Ni/Au plating Au:1.0 µm or more 1/7 ¡ electronic components KGF2701 MARKING (8) (7) (6) (5) K2701 ¡ XXX PRODUCT TYPE COMPANY LOGO LOT NUMBER INDEX (1) (2) (3) (4) (1) Input (5) Output (2) GND (6) GND (3) GND (7) GND (4) VDD (8) AGC CIRCUIT (4) VDD Output (5) Input (1) (8) AGC (2), (3), (6), (7) GND 2/7 ¡ electronic components KGF2701 ABSOLUTE MAXIMUM RATINGS Item Symbol Condition Unit Min. Max. VDD Ta = 25°C V — 8 Input power PIN Ta = 25°C dBm — 6 Total power dissipation Ptot Ta = 25°C mW — 800 Channel temperature Tch — °C — 150 Storage temperature Tstg — °C –45 125 Supply voltage ELECTRICAL CHARACTERISTICS (Ta = 25°C) Item Operating current Symbol IDD Isolation |S12| Linear gain GLIN Gain flatness Condition (*1), PIN = –20 dBm f = 2.5 GHz (*1), PIN = –20 dBm Unit Min. Typ. Max. mA — 70 90 dB — –30 –25 dB 16.0 17.5 — G f = 0.8 GHz dB — 1.8 2.5 Input return loss |S11| f = 2.5 GHz dB — –10 –8 Output return loss |S22| f = 4.0 GHz dB — –10 –8 Output power PO1 dBm 14 16 — Noise figure F Third-order intercept point IP3 Thermal resistance Rth (*1), f = 2.5 GHz Channel to case dB — 4.5 — dBm — 25 — °C/W — 55 — *1 Self-bias condition: VDD = 5.2 V, VAGC = 0 V 3/7 ¡ electronic components KGF2701 RF CHARACTERISTICS KGF2701 GLIN and Noise Figure vs. Frequency KGF2701 Input, Output Return Loss and lsolation vs. Frequency 4/7 ¡ electronic components KGF2701 5/7 ¡ electronic components KGF2701 Test Circuit Board for KGF2701 (8) (1) K2701 ¡ XXX (5) (4) Covered wire VAGC 6 - f2.0 Thru hole 6 - f1.0 Thru hole GND Microstrip line (Z0 = 50 W) 0.9 45 0.9 IN OUT Chip capacitor 4 - 1000 pF GND VDD 35 (Unit: mm) Substrate: Teflon-fiberglass (0.33 mmt, 35 mmt Cu plated both side, er = 2.5) 6/7 ¡ electronic components KGF2701 Application Note Example 1: Single-stage Amplifier with AGC Feed through Capacitor 1000 pF VDD +5 V 0.1 mF 1000 pF (4) 50 W Line (1) (5) 50 W Line KGF 2701 (2), (3), (6), (7) (8) IN OUT 1 kW AGC 1000 pF 0.1 mF Example 2: Two-stage Amplifier Feed through Capacitor 1000 pF VDD +5 V 0.1 mF IN 50 W Line (1) KGF 2701 1000 pF 0.1 mF 1000 pF (4) (4) 50 W Line (1) (5) 50 W Line KGF 2701 (2), (3), (6), (7), (8) (2), (3), (6), (7), (8) (5) OUT 7/7