Multiplier Devices Multiplier Devices: MSD 700 Series Step Recovery Diodes Description The MicroMetrics MSD 700 series Step Recovery diodes are epitaxial silicon varactors which provide high output power and efficiencies in harmonic generator applications. Features * Wide Selection of Tightend Capacitance Ranges * Low Transition Times * High Efficiencies Strict material and process controls result in high reproducibility. A unique silicon dioxide passivation process assures greater stability, reliability and low leakage currents at high temperatures. Packaging * Chip, Glass, Ceramic, Surface Mount, Beam Lead Typical Performance Diodes are available in various capacitance ranges for each of the 4 voltage ratings. These diodes represent the lowest transition times (snap time) available for each voltage rating. 100 40 20 10 CAPACITANCE (pF) Unless otherwise specified, capacitance will be within the range shown above for each type. A capacitance tolerance of 10% is available at an additional charge. Diodes can be optimized for custom electrical or mechanical specifications. Custom parameters for capacitance, voltage, transition time, series resistance, etc. are available upon request. A-Mode 2 1 Step Recovery .2 .1 +.5 +.3 0 -1 -3 -6 -10 -20 -40 -100 APPLIED VOLTAGE (V) 100 MINIMUM MINORITY CARRIER LIFETIME, (nS) > Applications include local oscillators, voltage controlled oscillators, frequency synthesizers and up converters. They are also used in comb generators to generate a broad frequency spectrum and in high speed pulse shaping circuits. SRD 6 4 .6 .4 Applications The MSD 700 series Step Recovery diodes are used as harmonic generators for all orders of multiplication, x 2 through x 20, for both narrow and wide bandwidths. Typical SRD Multiplier Idler Circuit Bias Network Output Matching High Pass Matching Impulse Section Filter Section Generator Square Law 10 Fin 10 1.0 0.1 1.0 INPUT FREQUENCY, (F) (GHz) 10 Output Filter OUTPUT INPUT 36 MicroMetrics, Inc. 136 Harvey Road, Building C, Londonderry, NH 03053 Voice: 603-641-3800, Fax: 603-641-3500, Internet: www.micrometrics.com, E-mail: serv@micrometrics.com Multiplier Devices Multiplier Devices: MSD 700 Series Electrical Characteristics 4 Junction Capacitance, Cj1 @ -6V, 1MHz (pF) Minimum Breakdown Voltage, Vb @ 10 A (V) Minimum Carrier Lifetime,Tl Ir 6 mA, lf = 10 mA (nS) Maximum Transition Time, Tt (pS) Maximum Series Resistance, Rs2 lf = 25 mA Rs (Ohms) Maximum Thermal Resistance3 Cj C/W Part Number 0.2 - 0.4 0.4 - 0.6 0.6 - 0.8 0.8 - 1.0 1.0 - 1.4 1.4 - 2.0 2.0 - 3.0 0.2 - 0.4 0.4 - 0.6 0.6 - 0.8 0.8 - 1.0 1.0 - 1.4 1.4 - 2.0 2.0 - 3.0 0.2 - 0.4 0.4 - 0.6 0.6 - 0.8 0.8 - 1.0 1.0 - 1.4 1.4 - 2.0 2.0 - 3.0 0.2 - 0.4 0.4 - 0.6 0.6 - 0.8 0.8 - 1.0 1.0 - 1.4 1.4 - 2.0 2.0 - 3.0 15 15 15 15 15 15 15 20 20 20 20 20 20 20 30 30 30 30 30 30 30 40 40 40 40 40 40 40 8 8 8 8 8 8 8 11 11 11 11 11 11 11 17 17 17 17 17 17 17 21 21 21 21 21 21 21 60 60 60 60 60 60 60 70 70 70 70 70 70 70 100 100 100 100 100 100 100 150 150 150 150 150 150 150 1.20 1.00 0.70 0.50 0.40 0.30 0.25 1.00 0.70 0.60 0.50 0.40 0.30 0.25 0.80 0.60 0.50 0.40 0.30 0.25 0.20 0.80 0.60 0.50 0.40 0.30 0.25 0.20 125 100 100 75 75 60 60 100 75 75 75 75 60 60 75 60 60 60 60 50 50 50 50 50 50 50 40 40 MSD700 MSD701 MSD702 MSD703 MSD704 MSD705 MSD706 MSD710 MSD711 MSD712 MSD713 MSD714 MSD715 MSD716 MSD720 MSD721 MSD722 MSD723 MSD724 MSD725 MSD726 MSD730 MSD731 MSD732 MSD733 MSD734 MSD735 MSD736 Notes: 1. Junction Capacitance is measured at 1 MHz on Hewlett Packard model 4277A LCZ meter. 2. Series Resistance is measured using a Hewlett Packard model 4191A impedance analyzer. 3. Thermal Resistance is measured using pulsed conditions while measuring forward voltage drop across the diode mounted in an infinite heat sink. 4. All specifications are measured in case style CS37. Maximum Ratings Storage Temperature -65C to + 200C Operating Temperature -55C to + 150C Minimum Voltage Breakdown 15, 20, 30 and 40 V at 10 A MicroMetrics, Inc. 136 Harvey Road, Building C, Londonderry, NH 03053 Voice: 603-641-3800, Fax: 603-641-3500, Internet: www.micrometrics.com, E-mail: serv@micrometrics.com 37