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| Also Offering RoHs Compliant Surface Mount Low Power Step Recovery Diodes Features * * * * * Surface Mount Packages (SOT-23,SC-79) Low transition times SPC Process for Superior C-V Repeatability Tape and Reel Packaging Designed for Commercial Wireless Applications (Unless Otherwise Noted) 1 Parameter Operating Temperature Storage Temperature Reverse Voltage Forward Bias Current Power Dissipation MA44700 Series V4 Absolute Maximum Ratings @ TA=+25 C Absolute Maximum -65 C to +125 C -65 C to +125 C 30V 50 mA 250 mW Description The MA44700 series of Step Recovery diodes is designed for use in low power multipliers with output frequencies of up to 5 GHz. These Step Recovery diodes generate harmonics by storing a charge as the diode is driven to forward conductance by the positive voltage of the input signal. When the signal reverses polarity, this charge is extracted. The Step Recovery diode will appear as a low impedance currentsource until all the charge is extracted, then it will "snap" to a higher impedance. This causes a voltage pulse to form in the impulse circuit of the multiplier. Step Recovery diodes make excellent high order multipliers such as comb generators. They are also useful as efficient moderate power X2-X4 multipliers. 1. Operation of this device above any one of these parameters may cause permanent damage. 2. Please refer to application note M538 for surface mounting instructions Typical Capacitance vs. Bias (V) freq=1MHz 8 7 6 MA44768 MA44769 MA44767 Capacitance (pF) 5 4 3 2 Applications The MA44700 series step recovery are useful for surface mount low power applications. 1 0 0 5 10 15 20 25 30 Bias(V) CT2 RoHs Compliant Part Number (non-RoHs) Available Part Numbers (pF) f=1 MHz, VR=6.0V Min. MA44767-287T MA44768-287T MA44769-287T 1 2 Reverse Voltage (V) Nominal Carrier Transition Time Nominal Input Nominal Output (nS) Ir =10 uA Min. 30 30 30 Typical 250-500 75-225 20-50 (pS) (GHz) (GHz) Max. 4.5 2.4 1.2 Max 600 250 150 0.05-5 0.1-1 0.1-1 0.5-1.5 0.5-2.5 1-5 MAVR-044767-0287AT MAVR-044767-12790T MAVR-044768-0287AT MAVR-044768-12790T MA144769-287T MAVR-044769-12790T 3.0 1.6 0.8 The prefix defines package style, configuration and packaging information. Contact representative for complete part identification. Capacitance @ 1 MHz M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. 1 * North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. Also Offering RoHs Compliant Surface Mount Low Power Step Recovery Diodes Case Styles MA44700 Series V4 SOT-23 Case Style 287 SOT-23 (Case Style 287) INCHES MAX. 0.048 F D A N DIM. A B C D E F G H J K L MIN. MILLIMETERS MIN. MAX. 1.22 0.20 1.00 0.35 0.50 0.08 0.15 2.80 3.00 1.20 1.40 0.95 typical 1.90 typical 2.60 0.60 M G B K L H J C E 0.008 0.040 0.013 0.020 0.003 0.006 0.110 0.119 0.047 0.056 0.037 typical 0.075 typical 0.103 0.024 DIM. M N GRADIENT 10 max.1 2 . . .30 SC-79 Case Style 1279 Topview Cathode Mark B 10 Max Seating Plane F E SC-79 (Case Style 1279) DIM. A B C D E F G H MIN. INCHES MAX. 0.028 0.008 0.010 0.014 0.067 0.051 0.012 MILLIMETERS MIN. MAX. 0.50 0.08 0.15 0.25 0.08 1.50 0.28 0.94 0.71 0.20 0.25 0.36 0.15 1.30 0.30 C D A 10 Max G H 0.020 0.003 0.006 0.010 0.059 0.043 0.011 0.037 typical 0.043 1.09 2 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. * North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. Also Offering RoHs Compliant Surface Mount Low Power Step Recovery Diodes Mounting Information The illustration indicates the recommended mounting pad configuration for the SOT-23 and SC-79 packages. Solder paste containing flux should be screened onto the pads to a thickness of 0.005- 0.007 inches. The plastic package is placed in position, firmly adhering to the solder paste. Permanent attachment is performed by a reflow soldering procedure during which the tab temperature does not exceed +275 C and the body temperature does not exceed +250 C, for standard models and +260 C for the RoHS compliant devices. Please refer to Application Note M538 for surface mounting instructions. 0.020 0.50 0.053 1.35 MA44700 Series V4 SOT-23 .030 min. 0.80 .035 min. 0.90 .037 0.95 0.75 1.9 .090 2.2 Dimenstions: inches mm SC-79 0.020 0.50 Dimenstions: inches mm Package Configuration SOT-23 Case Style 287 SC-79 Case Style 1279 3 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. * North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. |
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