26–33 GHz GaAs MMIC Single Balanced Down Converter Mixer AM028S1-00 Chip Outline Features ■ Low Conversion Loss, 6.0 dB 1.740 ■ Low LO Power Requirement, 8 dBm 1.426 1.407 29-4-9 DEDDA CIMHO ■ Wide IF Bandwidth, 0–5 GHz ■ No DC Bias Required Description 0.780 1.760 OHMIC ADDED 9-4-92 0.000 0.000 Alpha’s single balanced GaAs Schottky diode mixer has a typical conversion loss of 6.0 dB at an LO power level as low as 8 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. Dimensions indicated in mm. All pads are ≥ 0.07 mm wide. Chip thickness = 0.1 mm. Absolute Maximum Ratings Characteristic Value Operating Temperature -55°C to +125°C Storage Temperature -65°C to +150°C Total Input Power (RF + LO) 20 dBm Electrical Specifications at 25°C Parameter Symbol RF and LO Frequency Range Min. Typ.2 Max. Unit FRF, FLO 26–33 GHz IF Frequency Range FIF 0–5 GHz LO Power Level PLO 8–18 dBm LC 6 dB RLRF, RLLO 20 dB ISOLO-RF 12 dB Conversion Loss1 RF and LO Return Loss1 LO to RF Isolation1 LO to IF Isolation1 ISOLO-IF 35 dB RF Input 1 dB Compression Point1 P1 dB 10 dBm Individual Diode Series Resistance RS 3.3 Ω 1. Not measured on a 100% basis. 2. Typical represents the median parameter value across the specified frequency range for the median chip. Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 2/00A 1 26–33 GHz GaAs MMIC Single Balanced Down Converter Mixer AM028S1-00 Typical Performance Data 50 10 30 LO Return Loss 8 20 LO to RF Isolation 6 10 Conversion Loss 4 0 4 6 8 10 12 14 16 Conversion Loss (dB) 40 LO to IF Isolation 12 30 10 LO Return Loss 8 20 LO to RF Isolation 6 10 Conversion Loss 4 25 18 26 LO Power (dBm) 27 28 29 30 31 32 33 Performance vs. LO Frequency FRF = FLO + 1 GHz, PRF = 10 dBm Circuit Schematic 14 RF 12 90˚ Phase Shifter/Splitter 10 8 6 4 0 1 2 3 4 5 6 7 8 9 IF 10 IF Frequency (GHz) Performance vs. IF Frequency FRF = 28 GHz, FLO = FRF + FIF, PLO = 10 dBm Wire Bonding Configuration RF 29-4-9 DEDDA CIMHO LO IF 2 0 34 LO Frequency (GHz) Performance vs. LO Power FRF = 28 GHz, FLO = 27 GHz, PRF = -10 dBm Conversion Loss (dB) 40 LO to IF Isolation Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 2/00A LO Return Loss & Isolation (dB) 12 50 14 Return Loss & Isolation (dB) Conversion Loss (dB) 14