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| 26-33 GHz GaAs MMIC Double Balanced Down Converter Mixer AM028D1-00 Features Chip Outline 2.155 29-4-9 DEDDA CIMHO 29-4-9 DEDDA CIMHO I Low Conversion Loss, 6.5 dB I Insensitive to LO Power Variations I High LO to RF Isolation, 27 dB I No DC Bias Required OHMIC ADDED 9-4-92 1.582 1.086 Description Alpha's double balanced GaAs Schottky diode mixer has a typical conversion loss of 6.5 dB at an LO power level as low as 11 dBm over the band 26-33 GHz. The chip uses Alpha's proven Schottky diode technology, and is based upon MBE layers for the highest uniformity and repeatability. The diodes employ surface passivation to ensure a rugged, reliable part with through-substrate via holes and gold-based backside metallization to facilitate an epoxy die attach process. All chips are screened for DC diode parameters and lot samples are RF measured to guarantee performance. 50 OHMS SMHO 05 0.591 0.085 0.000 0.000 0.085 1.166 2.320 Dimensions indicated in mm. All pads are 0.07 mm wide. Chip thickness = 0.1 mm. Absolute Maximum Ratings Characteristic Operating Temperature Storage Temperature Total Input Power (RF + LO) Value -55C to +125C -65C to +150C 23 dBm Electrical Specifications at 25C Parameter RF and LO Frequency Range IF Frequency Range LO Power Level Conversion Loss1 RF and LO Return Loss1 LO to RF Isolation1 LO to IF Isolation1 RF Input 1 dB Compression Point1 Two Parallel Diode Series Resistance 1. Not measured on a 100% basis. 2. Typical represents the median parameter value across the specified frequency range for the median chip. Symbol FRF, FLO FIF PLO LC RLRF, RLLO ISOLO-RF ISOLO-IF P1 dB Min. Typ.2 26-33 0-2 11-21 6.5 20 27 30 12 Max. Unit GHz GHz dBm dB dB dB dB dBm 1.5 Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 2/00A 1 26-33 GHz GaAs MMIC Double Balanced Down Converter Mixer AM028D1-00 Typical Performance Data 14 LO to IF Isolation 50 14 50 Return Loss & Isolation (dB) LO to IF Isolation Return Loss & Isolation (dB) Conversion Loss (dB) 12 10 8 LO Return Loss 6 Conversion Loss 4 7 9 11 13 15 17 19 LO to RF Isolation 40 30 20 10 0 Conversion Loss (dB) 12 LO to RF Isolation 10 8 LO Return Loss 6 4 25 26 27 28 Conversion Loss 29 30 31 32 33 34 40 30 20 10 0 LO Power (dBm) LO Frequency (GHz) Performance vs. LO Power FRF = 28 GHz, FLO = 27 GHz, PRF = -10 dBm 14 Performance vs. LO Frequency FRF = FLO + 1 GHz, PLO = 12 dBm Circuit Schematic 90 Phase Shifter/Splitter Conversion Loss (dB) 12 10 8 RF LO IF 6 4 0 1 2 3 4 5 6 7 8 9 10 IF Frequency (GHz) Performance vs. IF Frequency FRF = 28 GHz, FLO = FRF + FIF, PLO = 12 dBm Wire Bonding Configurations 29-4-9 DEDDA CIMHO 29-4-9 DEDDA CIMHO OHMIC ADDED 9-4-92 OHMIC ADDED 9-4-92 OHMIC ADDED 9-4-92 RF LO RF LO 50 OHMS SMHO 05 50 OHMS SMHO 05 IF Single IF bond configuration. IF Requires two IF bonds. LO to IF isolation is degraded by 7 dB for this configuration. 2 Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 2/00A |
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