MA46580-1209 MACOM

MA46580 & MA46585 Beam Lead Constant Gamma GaAs Tuning Varactor Rev. V4 Features Absolute Maximum Ratings T =+25 C A 1 Constant Gamma = 1.0 & 1.25 available (Unless Otherwise Noted) High Q (3000 minimum at 4V 50MHz) Strong Beam Construction Parameter Absolute Maximum (Minimum 10 gram beam strength) Reverse Voltage 18V Low Parasitic Capacitance Operating Temperature -65C to +150C Close Capacitance tracking Lead-Free (RoHs Compliant) equivalents Storage Temperature -65C to +200C available with 260C reflow compatibility Power Dissipation 25mW at 25 C Beam Strength 10 grams minimum Description 1. Operation of this device above any one of these parameters The MA46580 & MA46585 series beam lead con- may cause permanent damage. stant gamma tuning varactors are hyper-abrupt junc- tion gallium arsenide diodes with a constant gamma of 1.0 or 1.25. The high Q values and the elimination of package parasitics make these varactors very Applications attractive for voltage controlled oscillators that re- These beam lead constant gamma tuning varac- quire linear tuning. These tuning diodes are useful at tors are particularly useful in broadband VCOs, frequencies as high as 40 Ghz. where linear frequency tuning is an important feature. They are also very useful for FM modu- The beam lead design eliminates almost all of the lating a source for telecommunication transmitter package parasitics resulting in improved linearity of and in many cases such circuits can be designed the junction capacitance change with applied re- without a linearization circuit. verse bias voltage. This improves tracking between diodes and can improve VCO linearity. Electrical Specifications T = +25 C Electrical Specifications T = +25 C A A 2 2 Gamma = 1.0 Gamma = 1.25 Gamma4 = 0.9 - 1.1, VR = 2 - 12 Volts Gamma4 = 1.13-1.38, VR = 2 - 12 Volts Breakdown Voltage I = 10A, V = 18 V Min Breakdown Voltage I = 10A, V = 18 V Min R b R b Reverse Leakage Current V =14V, I = 50 nA Max Reverse Leakage Current V =14V, I = 50 nA Max R R R R Total Total Total Total Q Q Case Capaci- Capaci- Case Capaci- Capaci- Mini- 1 Mini- 1 Style tance tance Style tance tance mum mum +/-20% Ratio +/-20% Ratio Part Number Part Number Vr=2V Vr=4V Vr=2V Vr=4V Vr=4V Vr=4V Vr=12V f=50MHz Vr=12V f=50MHz (pF) - - (pF) - - MA46580-1209 1209 0.5 4.5-6.5 3000 MA46585-1209 1209 0.5 3.2-5.2 3000 Notes: 1. Capacitance is measured at 1 MHz. 2. All junctions are hyperabrupt with nominal = 1.0 or 1.25 3. Reverse voltage (VB) is measured at 10 microamps. 11 1 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: MA46580 & MA46585 Beam Lead Constant Gamma GaAs Tuning Varactor Rev. V4 Typical Performance Curves 25C Capacitance vs. Voltage Capacitance vs. Voltage Capacitance Ratio CT2V/CTV Capacitance Ratio CT2V/CTV 22 2 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: