MA46580 Datasheet | Tyco Electronics

Features - Constant Gamma = 1.0 & 1.25 available - High Q (3000 minimum at 4V 50MHz) - Strong Beam Construction (Minimum 10 gram beam strength) - Low Parasitic Capacitance - Close Capacitance tracking - Lead-Free (Ro Hs pliant) equivalents available with 260°C reflow patibility. MA46580 & MA46585 V3 Absolute Maximum Ratings @ TA=+25 °C (Unless Otherwise Noted) Parameter Reverse Voltage Operating Temperature Storage Temperature Power Dissipation Absolute Maximum 18V -65°C to +150°C -65°C to +200°C 25m W at 25 °C 10 grams minimum Description The MA46580,MA46585 and MA46H130 series of beam lead constant gamma tuning varactors are hyperabrupt junction 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 attractive for voltage controlled oscillators that require linear tuning. These tuning diodes are useful at frequencies as high as 40 Ghz. The beam lead design eliminates almost all of the package parasitics resulting in improved linearity of the junction capacitance change with applied reverse bias voltage. This improves tracking between diodes and can improve VCO linearity. Beam Strength 1. Operation of this device above any one of these parameters may cause permanent damage. Applications These beam lead constant gamma tuning varactors are particularly useful in broadband VCO’s, where linear frequency tuning is an important feature . They are also very useful for FM modulating a source for telemunication transmitter and in many cases such circuits can be designed without a linearization circuit. Electrical Specifications @ TA = +25 °C Gamma = 1.02 Gamma4 = 0.9 - 1.1, VR = 2 - 12 Volts Breakdown Voltage @ IR = 10µA, Vb = 18 V Min Reverse Leakage Current @ VR =14V, IR = 50 n A Max Total Capacitance1 +/-20% Vr=4V (p F) MA46585-1209 Notes: 1. Capacitance is measured at 1 MHz. 2. All junctions are hyperabrupt with nominal Γ= 1.0 or 1.25 3. Reverse voltage (VB) is measured at...