GaAs Multiplier Varactors MA48700 Series V3.00 Features ● ● Case Styles High Cutoff Frequency Operating Temperatures From -65°C to +200°C (See appendix for complete dimensions) Description The MA48700 series of Gallium Arsenide Abrupt Junction Multiplier Varactors is specifically designed to provide single state, high order multiplication at output frequencies extending to approximately 100 GHz. All varactors in this series are available in either package or chip form. The cathode is the heat sink end of the package. 30 92 Applications This series of Gallium Arsenide Multiplier Varactors is intended for medium power harmonic generation with high conversion efficiency. These diodes may be used to double or triple the frequency output of a phase locked source for millimeter wave radar and communication systems for local oscillators and transmitters. 94 95 120 126 128 166 Specifications Subject to Change Without Notice. M/A-COM, Inc. North America: 1 Tel. (800) 366-2266 Fax (800) 618-8883 ■ Asia/Pacific: Tel. +81 (03) 3226-1671 Fax +81 (03) 3226-1451 ■ Europe: Tel. +44 (1344) 869 595 Fax +44 (1344) 300 020 MA48700 Series GaAs Multiplier Varactors V3.00 Electrical Specifications @ 25°C Model3 Number Minimum Voltage Rating (Volts) Zero Bias1 Junction Capacitance (pF) Cut-off Frequency2 (fc) at -6 Volts (GHz) Suggested Output Frequency Range (GHz) MA48701E 15 0.150 - 0.250 550 20 - 50 MA48702E 15 0.250 - 0.350 500 20 - 40 MA48703E 15 0.350 - 0.450 450 15 - 30 MA48704E 15 0.450 - 0.550 400 15 - 30 MA48705E 15 0.550 - 0.650 400 10 - 20 MA48706C 25 0.150 - 0.250 400 20 - 40 MA48707C 25 0.250 - 0.350 350 15 - 35 MA48708C 25 0.350 - 0.450 300 15 - 30 Electrical Characteristics Notes: 1. Junction capacitance (Cj0) is measured at 1 MHz and 0 volts on a bridge which has been balanced with a shielded test holder connected in place, but open circuited. 2. Cutoff frequency measurements (FC0) are made at 0 volts and then extrapolated to -6 volts. See curve of Figure 1 showing typical FC - 6 (cutoff at - 6 volts) versus FC0 (cutoff at 0 volts) performance curve. 3. Available in the case styles 30, 92, 94, 95, 120, 126, 128 and 166. When ordering, specify the case style by adding the case style number as a suffix to the basic part number. 4. Nominal package parasitics (Cp and Ls) are given for each case style with the outline drawing in the appendix section. Absolute Maximum Ratings @ 25°C Parameter Temperature Storage Operating Voltage Absolute Maximum -65°C to +250°C -65°C to +200°C Voltage Rating Specifications Subject to Change Without Notice. M/A-COM, Inc. 2 North America: Tel. (800) 366-2266 Fax (800) 618-8883 ■ Asia/Pacific: Tel. +81 (03) 3226-1671 Fax +81 (03) 3226-1451 ■ Europe: Tel. +44 (1344) 869 595 Fax +44 (1344) 300 020 MA48700 Series GaAs Multiplier Varactors V3.00 Typical Performance Curves RELATIONSHIP BETWEEN CUTOFF FREQUENCY AT ZERO AND SIX VOLTS IN GAAS VARACTOR DIODES THEORETICAL EFFICIENCY OF X2 GAAS VARACTOR MULTIPLIERS THEORETICAL EFFICIENCY OF X3 GAAS VARACTOR MULTIPLIERS THEORETICAL EFFICIENCY OF X4 GAAS VARACTOR MULTIPLIERS Specifications Subject to Change Without Notice. M/A-COM, Inc. North America: 3 Tel. (800) 366-2266 Fax (800) 618-8883 ■ Asia/Pacific: Tel. +81 (03) 3226-1671 Fax +81 (03) 3226-1451 ■ Europe: Tel. +44 (1344) 869 595 Fax +44 (1344) 300 020