XB1008-QT MIMIX | Alldatasheet

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Technical content

Features

Supply Voltage (Vd) Supply Current (Id1) Gate Bias Voltage (Vg) Input Power (Pin) Storage Temperature (Tstg) Operating Temperature (Ta) Channel Temperature (Tch) +6.0 VDC 180 mA +0.3 VDC +20.0 dBm -65 to +165 OC -55 to MTTF Graph1 MTTF Graph1 Page 1 of 6 (1) Channel temperature affects a device's MTTF. It is recommended to keep channel temperature as low as possible for maximum life. Electrical Characteristics (Ambient T emperature T = 25 oC) Parameter Frequency Range (f ) Input Return Loss (S11) Output Return Loss (S22) Small Signal Gain (S21) Gain Flatness ( S21) Reverse Isolation (S12) Noise Figure Output Power for 1dB Compression (P1dB) Saturated Output Power (Psat) Output Third Order Intercept Drain Bias Voltage (Vd) Gate Bias Voltage (Vg) Supply Current (Id) (Vd=4.0V, Vg2=-0.5V Typical) Units GHz dB dB dB dB dB dB dBm dBm dBm VDC VDC mA Min. 10.0 -1.0 Typ. 12.0 12.0 17.0 +/-2.0 65.0 4.5 +19.0 +20.0 +32.0 +4.0 -0.1 Max. 21.0 +5.5 0.0 Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Characteristic Data and Specifications are subject to change without notice. ©2007 Mimix Broadband, Inc. their obligation to be compliant with U.S. Export Laws. B1008-QT Mimix Broadband’s two stage 10.0-21.0 GHz GaAs MMIC buffer amplifier has a small signal gain of 17.0 dB with a +19.0 dBm P1dB output compression point. The device also provides variable gain regulation with adjustable bias. The device is ideally suited as an LO or RF buffer stage with broadband performance at a very low cost. The device comes in an RoHS compliant 3x3mm QFN surface mount package offering excellent RF and thermal properties. This device is well suited for Microwave and Millimeter-wave Point-to-Point Radio, LMDS, SATCOM and VSAT applications. General Description September 2007 - Rev 12-Sep-07

Buffer Amplifier Measurements Page 2 of 6 Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Characteristic Data and Specifications are subject to change without notice. ©2007 Mimix Broadband, Inc. their obligation to be compliant with U.S. Export Laws. B1008-QT 10.0-21.0 GHz GaAs MMIC Buffer Amplifier, QFN September 2007 - Rev 12-Sep-07 XB1008-QT, Vd = 4V, Id = 100 mA: Input Return Loss vs Frequency -20 -18 -16 -14 -12 -10 5 7 9 1 11 31 51 71 92 12 32 5 Frequency (GHz) S11 (dB) XB1008-QT, Vd = 4V, Id = 100 mA: Small Signal Gain vs Frequency 5 7 9 1 11 31 51 71 92 12 32 5 Frequency (GHz) S21 (dB) XB1008-QT, Vd = 4V, Id = 100 mA: Output Return Loss vs Frequency -25 -20 -15 -10 5 7 9 1 11 31 51 71 92 12 32 5 Frequency (GHz) S22 (dB) XB1008-QT: OIP3 vs Frequency. 4V, 90 mA, Pin = -15dBm 10 11 12 13 14 15 16 17 18 19 20 21 Frequency (GHz) OIP3 (dBm) XB1008-QT: OIP3 vs Frequency. 4V, 20 - 100mA, Pin = -15dBm 10 11 12 13 14 15 16 17 18 19 20 21 Frequency (GHz) OIP3 (dBm) Id av(mA)=20 Id av(mA)=30 Id av(mA)=40 Id av(mA)=50 Id av(mA)=60 Id av(mA)=70 Id av(mA)=80 Id av(mA)=90 Id av(mA)=100 XB1008-QT: Output Power. Vd = 4V, Id = 100mA - 1 4 - 1 2 - 1 0 - 8 - 6 - 4 - 2 02468 1 0 1 2 1 4 Pin (dBm) Power out (dBm)

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Buffer Amplifier Measurements (cont.) Page 3 of 6 Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Characteristic Data and Specifications are subject to change without notice. ©2007 Mimix Broadband, Inc. their obligation to be compliant with U.S. Export Laws. B1008-QT 10.0-21.0 GHz GaAs MMIC Buffer Amplifier, QFN September 2007 - Rev 12-Sep-07 XB1008-QT: Power out vs Frequency. Vd = 4V and Id = 100mA 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Freq (GHz) Power out (dBm) Pin = -10 dBm Pin = -8 dBm Pin = -6 dBm Pin = -4 dBm Pin = -2 dBm Pin = 0 dBm Pin = 2 dBm Pin = 4 dBm Pin = 6 dBm Pin = 8 dBm Pin = 10 dBm

Package Dimensions / Layout Functional Block Diagram Pin Designations Note: All unused GND pins should be tied to center ground on application board for best thermal conductivity. Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Characteristic Data and Specifications are subject to change without notice. ©2007 Mimix Broadband, Inc. their obligation to be compliant with U.S. Export Laws. Pin Number 1-2 6-9 11-12 14-16 Pin Name GND RF In GND VG GND RF Out GND VD GND Pin Function Ground RF Input Ground Gate Bias Ground RF Output Ground Drain Bias Ground Nominal Value -0.5V 4.5V, 130 mA 10.0-21.0 GHz GaAs MMIC Buffer Amplifier, QFN September 2007 - Rev 12-Sep-07 5 6 7 8 RF In VG gnd RF Out gnd gnd gnd gnd gnd gnd gnd gnd gnd gnd VD gnd

App Note [1] Biasing - The device provides variable gain with adjustable bias regulation. For optimum linearity performance, it is recommended to bias this device at Vd=4V with Id=90 mA. It is also recommended to use active biasing to control the drain currents because this gives the most reproducible results over temperature or RF level variations. Depending on the supply voltage available and the power dissipation constraints, the bias circuit may be a single transistor or a low power operational amplifier, with a low value resistor in series with the drain supply used to sense the current. The gate of the pHEMT is controlled to maintain correct drain current and thus drain voltage. The typical gate voltage needed to do this is -0.5V. Typically the gate is protected with Silicon diodes to limit the applied voltage. Also, make sure to sequence the applied voltage to ensure negative gate bias is available before applying the positive drain supply. MTTF Graphs These numbers were calculated based on accelerated life test information and thermal model analysis received from the fabricating foundry. XB1008-QT Vd=4.0 V Id=130 mA 1.00E+05 1.00E+06 1.00E+07 1.00E+08 1.00E+09 55 65 75 85 95 105 115 125 Backplate Temperature (deg C) MTTF (hours) XB1008-QT Vd=4.0 V Id=130 mA 1.00E+00 1.00E+01 1.00E+02 1.00E+03 1.00E+04 55 65 75 85 95 105 115 125 Backplate Temperature (deg C) FITS Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Characteristic Data and Specifications are subject to change without notice. ©2007 Mimix Broadband, Inc. their obligation to be compliant with U.S. Export Laws. 10.0-21.0 GHz GaAs MMIC Buffer Amplifier, QFN September 2007 - Rev 12-Sep-07

Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Characteristic Data and Specifications are subject to change without notice. ©2007 Mimix Broadband, Inc. their obligation to be compliant with U.S. Export Laws. 10.0-21.0 GHz GaAs MMIC Buffer Amplifier, QFN September 2007 - Rev 12-Sep-07