2 – 6 GHz Cascadable GaAs MMIC␣ Amplifier Technical Data MGA-64135 Features • Cascadable 50 Ω Gain Block • Broadband Performance: 2–6␣ GHz 12.0 dB Typical Gain ± 0.8 dB Gain Flatness 12.0 dBm P1 dB • Single Supply Bias • Cost Effective Ceramic Microstrip Package Description The MGA-64135 is a high performance gallium arsenide Monolithic Microwave Integrated Circuit (MMIC) housed in a cost effective, microstrip package. This device is designed for use as a general purpose 50 ohm gain block in the 2 to 6␣ GHz frequency range. Typical applications include narrow and broadband IF and RF amplifiers for commercial, industrial, and military requirements. This MMIC is a cascade of two stages, each utilizing shunt feedback to establish a broadband impedance match. The source of each stage is AC grounded to allow biasing from a single positive power supply. The interstage blocking capacitor as well as a resistive “self-bias” network are included on chip. The die is fabricated using HP’s nominal .5 micron recessed Schottky-barrier-gate, gold metallization and silicon nitride passivation to achieve excellent performance, uniformity, and reliability. Typical Biasing Configuration Vd RFC 4 C block 3 IN 1 MGA OUT 2 5965-9005E 6-192 35 Micro-X Package MGA-64135 Absolute Maximum Ratings Symbol Vd Pdiss Pin Tch TSTG Parameter Device Voltage Total Power Dissipation[2] CW RF Input Power Channel Temperature Storage Temperature[3] Thermal Resistance: Liquid Crystal Measurement: Units V mW dBm °C °C Absolute Maximum[1] 12 650 +13 175 -65 to 175 θjc = 150°C/W [4]; TCH = 150°C 1 µm Spot Size [5] Notes: 1. Operation of this device above any one of these parameters may cause permanent damage. 2. Derate linearly at 8.3 mW/°C for TCASE > 103°C. 3. Storage above +150°C may tarnish the leads of this package making it difficult to solder into a circuit. After a device has been soldered into a circuit, it may be safely stored up to 175°C. 4. The thermal resistance value is based on measurements taken with the device soldered to a 25 mil Teflon PCB. 5. The small spot size of this technique results in a higher, though more accurate determination of θjc than do alternate methods. See MEASUREMENTS section for more information. MGA-64135 Electrical Specifications, TA = 25°C Symbol Parameters and Test Conditions: Vd = 10 V, ZO = 50 Ω Units Min. f = 2 to 6 GHz dB 10.0 f = 2 to 6 GHz dB ± 1.20 dB ± 0.5 GP Power Gain (|S21| 2) ∆GP Gain Flatness — Gain Variation vs. Temperature TCASE = –25°C to +85°C f = 2 to 6 GHz Input VSWR f = 2 to 6 GHz VSWR Typ. 12.0 1.5:1 2.0:1 1.4:1 2.0:1 Output VSWR f = 2 to 6 GHz P1 dB Output Power at 1 dB Gain Compression f = 2 to 6 GHz dBm NF 50 Ω Noise Figure f = 2 to 6 GHz dB 7.5 — Reverse Isolation (|S21| 2) f = 2 to 6 GHz dB 35 Id Device Current mA 6-193 10.0 35 Max. 12.0 50 65 MGA-64135 Typical Performance, TA = 25°C P1 dB (dBm) GP (dB) 14 12 10 15 9.0 14 8.5 NOISE FIGURE (dB) 16 13 12 8.0 7.5 8 6 11 0 2.0 4.0 6.0 8.0 10.0 0 2.0 FREQUENCY (GHz) 4.0 6.0 7.0 2.0 8.0 4.0 FREQUENCY (GHz) Figure 1. Power Gain vs. Frequency, Vd = 10 V. 6.0 8.0 FREQUENCY (GHz) Figure 2. Output Power @ 1 dB Gain Compression vs. Frequency, Vd = 10 V. Figure 3. Noise Figure vs. Frequency, Vd = 10 V. 2.0:1 VSWR 1.8:1 1.6:1 INPUT 1.4:1 OUTPUT 1.2:1 1.0:1 0 2.0 4.0 6.0 8.0 10.0 FREQUENCY (GHz) Figure 4. VSWR vs. Frequency, Vd = 10 V. MGA-64135 Typical Scattering Parameters (ZO = 50 Ω, TA = 25°C, Vd = 10 V) S11 Freq. GHz Mag 0.5 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 .27 .18 .14 .17 .20 .18 .07 .15 .23 .32 .43 S21 S12 S22 Ang dB Mag Ang dB Mag Ang Mag Ang –38 –44 –67 –91 –105 –114 –162 96 76 63 52 10.6 12.9 14.3 14.5 14.2 13.6 12.8 11.8 10.8 9.5 8.6 3.38 4.42 5.21 5.33 5.11 4.79 4.35 3.89 3.46 2.98 2.68 174 –9 –54 –93 –131 –167 157 123 92 63 38 –31.0 –33.1 –34.9 –37.1 –37.8 –37.3 –38.5 –36.0 –34.3 –29.3 –27.6 .028 .022 .018 .014 .013 .014 .012 .016 .019 .034 .041 –13 –20 –19 –21 –15 –10 –1 3 4 12 –11 .38 .26 .16 .11 .11 .14 .17 .16 .10 .04 .09 –41 –48 –59 –75 –71 –57 –41 –42 –54 159 116 6-194 35 Micro-X Package Dimensions .085 2.15 4 GROUND .083 DIA. 2.11 RF OUTPUT 641 RF INPUT 1 3 .020 .508 2 .057 ± .010 1.45 ± .25 .022 .56 GROUND .100 2.54 Notes: (unless otherwise specified) 1. Dimensions are in mm 2. Tolerances in .xxx = ± 0.005 mm .xx = ± 0.13 .455 ± .030 11.54 ± .75 .006 ± .002 .15 ± .05 6-195