This version: Jul. 1998 Previous version: Jan. 1998 E2Q0024-38-71 ¡ electronic components KGF1256B/1256 ¡ electronic components KGF1256B/1256 Medium-Power Amplifier GENERAL DESCRIPTION The KGF1256B is a medium-power amplifier, with frequencies ranging from the UHF-band to the L-band, that features high output power, low noise, and low current operation. The KGF1256B specifications are guaranteed to a fixed matching circuit for 5 V and 850 MHz; external impedance-matching circuits are also required. Because of the low noise and high output power at the low operating current, the KGF1256B is ideal as a transmitter-driver amplifier for personal handy phones. The KGF1256 is similar to the KGF1256B in specifications and typical properties. Although having S Parameters that are slightly different from those of the KGF1256B, the KGF1256 meets the specifications for the KGF1256B, even with the same matching circuits. FEATURES • High output power: 15 dBm (min.) • Low noise: 2.5 dB (max.) • Low current: 40 mA (max.) • Self-bias circuit configuration with built-in source capacitor • Package: 4PSOP PACKAGE DIMENSIONS 1.8±0.1 0.85±0.05 0.36 0.74 0.3 MIN 1.1±0.15 0.4 +0.1 –0.05 1.5±0.15 3.0±0.2 0.6 +0.1 –0.05 0 to 0.15 Package material 1.9±0.1 Lead frame material 0.125 +0.03 –0 2.8±0.15 Epoxy resin Pin treatment 42 alloy Solder plating Solder plate thickness 5 mm or more (Unit: mm) Note: Ask our sales department for detailed requirements of the KGF1256. 1/14 ¡ electronic components KGF1256B/1256 MARKING (4) (3) D X X (1) (2) ALPHABETICAL LOT NUMBER NUMERICAL PRODUCT TYPE (1) Gate (2) Source (3) Drain (4) GND CIRCUIT Drain(3) Gate(1) Source(2) GND(4) 2/14 ¡ electronic components KGF1256B/1256 ABSOLUTE MAXIMUM RATINGS Symbol Condition Unit Min. Max. Drain-source voltage Item VDS Ta = 25°C V — 7 Gate-source voltage VGS Ta = 25°C V –3.0 0.4 Drain current IDS Ta = 25°C mA — 360 Total power dissipation Ptot Ta = 25°C mW — 300 Channel temperature Tch — °C — 150 Storage temperature Tstg — °C –45 125 ELECTRICAL CHARACTERISTICS (Ta = 25°C) Item Gate-source leakage current Gate-drain leakage current Drain-source leakage current Drain current Operating current Gate-source cut-off voltage Transconductance Noise figure Symbol IGSS Condition VGS = –3 V Typ. Max. — — 72 VGD = –11 V mA — — 360 VDS = 3 V, VGS = –2 V mA — — 720 IDSS VDS = 3 V, VGS = 0 V mA 100 — — (*1), PIN = 5 dBm, f = 850 MHz mA — — 40.0 IGDO ID VGS(off) VDS = 3 V, IDS = 720 mA V –1.5 — –0.5 gm VDS = 3 V, IDS = 25 mA mS 100 — — (*1), f = 850 MHz dB F GLIN (*2), PIN = –20 dBm (*1), PIN = 5 dBm Output power Min. mA IDS(off) (*1), PIN = –20 dBm Linear gain Unit — — 2.5 f = 850 MHz 14.0 18.0 — f = 1.5 GHz — 13.0 — f = 1.9 GHz — 10.5 — — 18.0 — f = 1.5 GHz — 12.5 — f = 1.9 GHz — 10.0 — f = 850 MHz 16.0 18.0 — f = 1.5 GHz — 15.5 — — 11.5 — — 15.0 — f = 1.5 GHz — 13.0 — f = 1.9 GHz — 10.5 — f = 850 MHz f = 1.9 GHz PO (*2), PIN = 5 dBm dB f = 850 MHz dBm *1 Self-bias condition: VDD = 5±0.25 V, VG = 0 V *2 Self-bias condition: VDD = 3 V, VG = 0 V 3/14 ¡ electronic components KGF1256B/1256 RF CHARACTERISTICS 4/14 ¡ electronic components KGF1256B/1256 5/14 ¡ electronic components KGF1256B/1256 6/14 ¡ electronic components KGF1256B/1256 7/14 ¡ electronic components KGF1256B/1256 8/14 ¡ electronic components KGF1256B/1256 Typical S Parameters of KGF1256B VDD = 3 V, VG = 0 V, ID = 14.0 mA Freq(MHz) MAG(S11) ANG(S11) MAG(S21) ANG(S21) MAG(S12) ANG(S12) MAG(S22) ANG(S22) 500.0 0.941 –52.03 5.226 134.33 0.051 42.22 0.531 –76.18 600.0 0.917 –62.43 5.315 126.90 0.052 39.67 0.470 –86.88 700.0 0.874 –71.90 5.111 117.12 0.050 38.92 0.443 –94.46 800.0 0.837 –78.93 4.827 108.84 0.048 43.95 0.426 –99.94 900.0 0.806 –86.02 4.537 101.30 0.051 44.67 0.415 –105.46 1000.0 0.777 –92.27 4.238 94.02 0.052 52.24 0.412 –109.85 1100.0 0.755 –98.15 3.966 87.45 0.052 54.10 0.407 –114.89 1200.0 0.737 –102.90 3.730 81.35 0.057 61.31 0.412 –118.94 1300.0 0.720 –108.50 3.496 75.71 0.061 68.35 0.413 –123.38 1400.0 0.710 –113.18 3.307 70.03 0.066 68.45 0.428 –127.26 1500.0 0.703 –117.55 3.145 65.11 0.077 73.21 0.435 –131.30 1600.0 0.700 –122.22 2.968 59.63 0.082 74.54 0.446 –136.06 1700.0 0.693 –126.28 2.830 55.27 0.093 76.69 0.454 –139.61 1800.0 0.691 –131.15 2.672 51.43 0.104 76.81 0.461 –143.33 1900.0 0.696 –135.24 2.559 45.44 0.115 78.98 0.481 –147.66 2000.0 0.693 –139.61 2.432 40.78 0.131 77.39 0.494 –151.56 2100.0 0.693 –144.32 2.310 36.30 0.146 77.41 0.500 –156.02 2200.0 0.695 –147.69 2.205 32.02 0.159 73.86 0.520 –160.73 2300.0 0.704 –152.62 2.092 27.18 0.174 73.40 0.534 –164.01 2400.0 0.702 –156.91 2.006 23.36 0.194 70.69 0.547 –169.05 2500.0 0.707 –161.26 1.898 19.63 0.210 66.14 0.570 –172.95 2600.0 0.716 –165.51 1.816 15.30 0.223 65.02 0.576 –177.32 2700.0 0.719 –170.07 1.732 11.81 0.243 61.54 0.597 178.74 2800.0 0.719 –174.51 1.646 8.05 0.253 58.95 0.607 174.30 2900.0 0.727 –178.84 1.561 4.42 0.269 56.33 0.614 169.67 3000.0 0.731 177.05 1.492 0.51 0.283 53.45 0.630 165.37 9/14 ¡ electronic components KGF1256B/1256 Typical S Parameters of KGF1256B VDD = 3 V, VG = 0 V, ID = 14.0 mA Frequency : 0.5 to 3.0 GHz Z0 = 50 W 10/14 ¡ electronic components KGF1256B/1256 Typical S Parameters of KGF1256B VDD = 5 V, VG = 0 V, ID = 15.4 mA Freq(MHz) MAG(S11) ANG(S11) MAG(S21) ANG(S21) MAG(S12) ANG(S12) MAG(S22) ANG(S22) 500.0 0.946 –50.39 5.163 134.98 0.046 41.95 0.531 –72.83 600.0 0.929 –60.59 5.261 127.92 0.044 42.66 0.469 –82.56 700.0 0.888 –69.71 5.067 118.20 0.043 43.75 0.439 –89.70 800.0 0.849 –77.00 4.808 109.79 0.043 47.27 0.426 –94.94 900.0 0.819 –83.83 4.532 102.16 0.045 46.06 0.420 –99.99 1000.0 0.798 –90.00 4.249 94.87 0.044 60.51 0.414 –104.80 1100.0 0.772 –95.94 3.991 88.30 0.045 62.09 0.407 –109.30 1200.0 0.754 –101.07 3.747 81.91 0.052 68.42 0.414 –113.96 1300.0 0.737 –106.32 3.514 76.24 0.057 76.71 0.424 –118.19 1400.0 0.734 –111.29 3.326 70.45 0.066 76.64 0.437 –122.15 1500.0 0.725 –115.68 3.174 65.44 0.074 81.63 0.442 –126.67 1600.0 0.719 –120.16 2.997 59.74 0.082 84.47 0.451 –131.24 1700.0 0.714 –124.65 2.860 55.18 0.096 85.33 0.460 –134.86 1800.0 0.712 –129.15 2.700 50.32 0.106 81.95 0.475 –138.98 1900.0 0.720 –133.48 2.585 45.17 0.117 83.83 0.490 –143.98 2000.0 0.715 –137.90 2.467 40.55 0.136 82.48 0.509 –147.62 2100.0 0.716 –142.76 2.331 35.99 0.151 83.14 0.517 –152.36 2200.0 0.720 –146.59 2.229 31.65 0.165 78.59 0.539 –156.77 2300.0 0.726 –151.65 2.108 26.60 0.184 76.66 0.551 –160.66 2400.0 0.726 –155.82 2.017 22.47 0.202 75.03 0.563 –165.98 2500.0 0.730 –160.35 1.907 19.12 0.218 71.03 0.583 –169.93 2600.0 0.736 –164.80 1.825 14.31 0.237 67.89 0.595 –174.37 2700.0 0.742 –169.18 1.734 10.62 0.252 64.26 0.611 –179.30 2800.0 0.742 –173.83 1.648 7.08 0.267 60.87 0.623 176.68 2900.0 0.746 –178.20 1.566 3.43 0.285 57.36 0.632 171.64 3000.0 0.753 177.40 1.494 –0.62 0.296 55.75 0.648 167.22 11/14 ¡ electronic components KGF1256B/1256 Typical S Parameters of KGF1256B VDD = 5 V, VG = 0 V, ID = 15.4 mA Frequency : 0.5 to 3.0 GHz Z0 = 50 W 12/14 ¡ electronic components KGF1256B/1256 Test Circuit and Bias Configuration for KGF1256B at 850 MHz CF CS VDD RFC RG T1 T2 IN CC T3 C1 (2) (1) KGF (3) 1256B (4) T4 OUT CC T6 T7 C2 T5 C3 C4 T1: Z0 = 75 W, E = 30 deg T4: Z0 = 75 W, E = 30 deg T2: Z0 = 75 W, E = 28 deg T5: Z0 = 75 W, E = 30 deg T3 = T6: Z0 = 100 W, E = 5 deg T7: Z0 = 100 W, E = 1 deg C1 = 7.0 pF, C2 = 0.8 pF, C3 = 5.0 pF, C4 = 5.5 pF, CS = 100 pF CC(DC Block) = 1000 pF, CF(Feed through) = 1000 pF RFC = 200 nH, RG = 1000 W Test Circuit and Bias Configuration for KGF1256B at 1.5 GHz CB CS T1 T2 IN CC RG T3 C1 CF VDD (2) (1) KGF (3) 1256B (4) T8 T4 T5 RFC OUT CC T6 T7 C2 C3 T1: Z0 = 75 W, E = 65 deg T4: Z0 = 75 W, E = 50 deg T2: Z0 = 75 W, E = 40 deg T5: Z0 = 75 W, E = 50 deg T3 = T6 = T7: Z0 = 100 W, E = 8 deg T8: Z0 = 100 W, E = 1 deg C1 = 2.4 pF, C2 = 1.2 pF, C3 = 0.6 pF, CS = 100 pF CC(DC Block) = 1000 pF, CB(By-pass) = 1000 pF, CF(Feed through) = 1000 pF RFC = 60 nH, RG = 1000 W 13/14 ¡ electronic components KGF1256B/1256 Test Circuit and Bias Configuration for KGF1256B at 1.9 GHz CB CS T1 T2 IN CC RG T3 C1 CF VDD (2) (1) KGF (3) 1256B (4) T8 T4 T5 RFC OUT CC T6 T7 C2 C3 T1: Z0 = 75 W, E = 65 deg T4: Z0 = 75 W, E = 50 deg T2: Z0 = 75 W, E = 40 deg T5: Z0 = 75 W, E = 50 deg T3 = T6 = T7: Z0 = 100 W, E = 1 deg T8: Z0 = 100 W, E = 1 deg C1 = 1.7 pF, C2 = 1.3 pF, C3 = 0.2 pF, CS = 100 pF CC(DC Block) = 1000 pF, CB(By-pass) = 1000 pF, CF(Feed through) = 1000 pF RFC = 60 nH, RG = 1000 W 14/14