This version: Jul. 1998 Previous version: Jan. 1998 E2Q0023-38-71 ¡ electronic components KGF1254B/1254 ¡ electronic components KGF1254B/1254 Medium-Power Amplifier GENERAL DESCRIPTION The KGF1254B 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 KGF1254B specifications are guaranteed to a fixed matching circuit for 5.2 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 KGF1254B is ideal as a transmitter-driver amplifier for personal handy phones. The KGF1254 is an amplifier similar to the KGF1254B in specifications and typical properties. Although having S Parameters that are slightly different from those of the KGF1254B, the KGF1254 meets the specifications for the KGF1254B, even with the same matching circuits as those of the KGF1254B. FEATURES • High output power: 20 dBm (min.) • Low noise: 2.5 dB (max.) • Low current operation: 80 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 KGF1254. 1/14 ¡ electronic components KGF1254B/1254 MARKING (4) (3) D X X (1) (2) NUMERICAL ALPHABETICAL LOT NUMBER PRODUCT TYPE (1) Gate (2) Source (3) Drain (4) GND CIRCUIT Drain(3) Gate(1) Source(2) GND(4) 2/14 ¡ electronic components KGF1254B/1254 ABSOLUTE MAXIMUM RATINGS Symbol Condition Unit Min. Max. Drain-Source voltage Item VDS Ta = 25°C V — 10 Gate-Source voltage VGS Ta = 25°C V –5.0 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 = –15 V mA — — 360 mA — — 720 IDSS VDS = 3 V, VGS = 0 V mA 130 — — ID (*1), PIN = 10 dBm, f = 850 MHz mA — — 80.0 VGS(off) VDS = 3 V, IDS = 720 mA V –2.0 — –1.0 gm VDS = 3 V, IDS = 60 mA mS 125 — — (*1), f = 850 MHz dB F GLIN (*2), PIN = –10 dBm (*1), PIN = 10 dBm Output power Min. mA VDS = 3 V, VGS = –2.5 V IGDO IDS(off) (*1), PIN = –10 dBm Linear gain Unit — — 2.5 f = 850 MHz 14.0 17.0 — f = 1.5 GHz — 13.5 — f = 1.9 GHz — 11.0 — — 17.0 — f = 1.5 GHz — 13.0 — f = 1.9 GHz — 10.0 — f = 850 MHz 20.0 22.0 — f = 1.5 GHz — 20.0 — — 18.0 — — 20.0 — f = 1.5 GHz — 16.0 — f = 1.9 GHz — 15.0 — f = 850 MHz f = 1.9 GHz PO (*2), PIN = 10 dBm dB f = 850 MHz dBm *1 Self-bias condition: VDD = 5.2 V, VG = 0 V *2 Self-bias condition: VDD = 3 V, VG = 0 V 3/14 ¡ electronic components KGF1254B/1254 RF CHARACTERISTICS 4/14 ¡ electronic components KGF1254B/1254 5/14 ¡ electronic components KGF1254B/1254 6/14 ¡ electronic components KGF1254B/1254 7/14 ¡ electronic components KGF1254B/1254 8/14 ¡ electronic components KGF1254B/1254 Typical S Parameters of KGF1254B VDD = 3 V, VG = 0 V, ID = 43.8 mA Freq(MHz) MAG(S11) ANG(S11) MAG(S21) ANG(S21) MAG(S12) ANG(S12) MAG(S22) ANG(S22) 500.0 0.882 –54.29 6.342 129.65 0.044 59.98 0.291 –91.01 600.0 0.858 –61.91 5.839 124.19 0.050 57.96 0.299 –102.52 700.0 0.828 –70.32 5.529 117.60 0.050 59.06 0.296 –112.71 800.0 0.797 –77.65 5.244 110.96 0.055 63.86 0.289 –119.30 900.0 0.770 –84.78 4.984 104.10 0.058 63.60 0.287 –125.16 1000.0 0.741 –91.04 4.689 97.72 0.062 65.29 0.279 –128.77 1100.0 0.720 –97.10 4.430 91.83 0.068 66.39 0.276 –132.96 1200.0 0.700 –102.38 4.176 86.10 0.076 67.73 0.280 –135.93 1300.0 0.681 –107.86 3.958 80.86 0.084 69.74 0.290 –137.58 1400.0 0.666 –113.07 3.747 75.51 0.093 69.37 0.292 –140.07 1500.0 0.656 –117.36 3.590 70.87 0.099 68.47 0.307 –143.39 1600.0 0.648 –122.06 3.402 65.72 0.108 70.21 0.309 –146.87 1700.0 0.636 –126.25 3.263 61.49 0.119 70.91 0.318 –148.45 1800.0 0.629 –130.79 3.095 57.06 0.128 68.98 0.330 –151.18 1900.0 0.629 –135.10 2.973 52.30 0.138 69.75 0.348 –154.04 2000.0 0.623 –139.85 2.851 48.02 0.152 66.93 0.358 –155.23 2100.0 0.620 –144.21 2.717 43.82 0.166 67.20 0.363 –159.28 2200.0 0.616 –147.51 2.619 39.65 0.178 64.35 0.386 –163.29 2300.0 0.621 –152.56 2.498 35.18 0.192 64.22 0.395 –165.34 2400.0 0.623 –156.23 2.408 31.36 0.205 61.50 0.406 –169.53 2500.0 0.623 –160.44 2.304 27.83 0.218 58.91 0.429 –171.79 2600.0 0.625 –164.40 2.217 23.62 0.230 56.57 0.441 –175.67 2700.0 0.632 –168.81 2.128 19.87 0.243 54.01 0.457 –179.59 2800.0 0.635 –172.79 2.047 16.31 0.256 52.28 0.471 177.80 2900.0 0.638 –177.44 1.965 12.51 0.270 49.71 0.486 173.52 3000.0 0.647 178.65 1.895 8.54 0.283 47.52 0.508 169.33 9/14 ¡ electronic components KGF1254B/1254 Typical S Parameters of KGF1254B VDD = 3 V, VG = 0 V, ID = 43.8 mA Frequency : 0.5 to 3.0 GHz Z0 = 50 W 10/14 ¡ electronic components KGF1254B/1254 Typical S Parameters of KGF1254B VDD = 5 V, VG = 0 V, ID = 45.1 mA Freq(MHz) MAG(S11) ANG(S11) MAG(S21) ANG(S21) MAG(S12) ANG(S12) MAG(S22) ANG(S22) 500.0 0.885 –52.63 6.302 130.04 0.040 61.92 0.322 –76.26 600.0 0.864 –59.83 5.861 124.38 0.043 59.74 0.321 –86.96 700.0 0.836 –67.93 5.553 117.38 0.045 60.36 0.315 –96.63 800.0 0.812 –75.08 5.277 110.70 0.047 62.83 0.307 –102.22 900.0 0.786 –82.06 5.005 103.96 0.051 62.81 0.300 –107.66 1000.0 0.765 –88.22 4.724 97.24 0.056 68.01 0.299 –111.14 1100.0 0.743 –94.20 4.471 91.06 0.062 71.47 0.298 –114.83 1200.0 0.725 –99.50 4.221 85.19 0.068 73.68 0.303 –119.37 1300.0 0.707 –105.20 3.978 79.95 0.079 76.17 0.311 –122.26 1400.0 0.697 –110.17 3.783 74.02 0.084 76.17 0.326 –125.15 1500.0 0.689 –114.84 3.624 69.53 0.094 75.92 0.334 –128.57 1600.0 0.679 –119.36 3.432 64.21 0.105 79.05 0.341 –132.48 1700.0 0.673 –123.74 3.289 59.89 0.115 77.97 0.353 –135.45 1800.0 0.667 –128.52 3.123 55.16 0.127 76.07 0.367 –138.21 1900.0 0.669 –133.13 2.995 50.31 0.139 76.30 0.388 –142.51 2000.0 0.661 –137.70 2.872 45.87 0.154 73.45 0.403 –144.74 2100.0 0.660 –142.35 2.730 41.41 0.166 74.08 0.408 –149.35 2200.0 0.660 –145.82 2.630 37.21 0.180 69.70 0.427 –153.97 2300.0 0.667 –151.02 2.497 32.36 0.199 68.97 0.444 –157.05 2400.0 0.663 –155.34 2.411 28.42 0.215 67.08 0.459 –161.21 2500.0 0.665 –159.71 2.294 24.90 0.225 63.38 0.479 –164.88 2600.0 0.671 –163.88 2.208 20.26 0.241 60.62 0.493 –168.63 2700.0 0.677 –168.72 2.118 16.64 0.259 57.47 0.510 –173.48 2800.0 0.682 –173.12 2.025 12.64 0.272 55.78 0.523 –177.27 2900.0 0.680 –177.75 1.936 8.81 0.284 52.98 0.542 178.12 3000.0 0.688 178.08 1.854 4.75 0.301 50.65 0.557 173.21 11/14 ¡ electronic components KGF1254B/1254 Typical S Parameters of KGF1254B VDD = 5 V, VG = 0 V, ID = 45.1 mA Frequency : 0.5 to 3.0 GHz Z0 = 50 W 12/14 ¡ electronic components KGF1254B/1254 Test Circuit and Bias Configuration for KGF1254B at 850 MHz CF CS VDD RFC RG T1 T2 IN CC T3 C1 (2) (1) KGF (3) 1254B (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 KGF1254B at 1.5 GHz CB CS T1 T2 IN CC RG T3 C1 CF VDD (2) (1) KGF (3) 1254B (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 KGF1254B/1254 Test Circuit and Bias Configuration for KGF1254B at 1.9 GHz CB CS T1 T2 IN CC RG T3 C1 CF VDD (2) (1) KGF (3) 1254B (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