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| Low - Voltage / Wide Band Si Hyperabrupt Varactors MA4ST300 Series MA4ST300 Low - Voltage / Wide Band Si Hyperabrupt Varactors Features * * * * * * * * Surface Mount Packages (SOT-23, SOT-323, SOD-323) High Capacitance Ratio at Low Voltages High Q at Low Voltages SPC Process for Superior C-V Repeatability Available as Single and Common Cathode Pairs Tape and Reel Packaging Designed for Commercial Wireless Applications Configurations TOP VIEW (SOT-23, SOT-323) Description The MA4ST300 series are ion-implanted, hyperabrupt junction, silicon tuning varactors in SOT-23, SOT-323, and SOD-323 surface mount packages. This series of varactors is designed for high capacitance ratio and low voltage operation. Each varactor type has a better than 3:1 capacitance ratio between 0.5V and 3.0V. Single TOP VIEW (SOD-323) Pair Applications The MA4ST300 series tuning varactors are useful for wide band tuning and low phase noise applications where the supply voltage is limited to 5 volts or less. These varactors have been specifically designed to cover wireless application bands up to the 2.4 GHz WLAN band. Applications include VCOs and voltage tuned filters. Spice Model Intrinsic Diode Model: N = 1.1 CJ0=(see table below) VJ = (see table below) FC = 0.5 BV = 12.0 V M = (see table below) 320 330 340 350 Rs $FWLYH3DJHUV &7 605 3'& *60 ,6 107 107 7$&6 $036 Cp Package Parasitics :/$1 Cj Parasitics: Cp= 0.15 pF Ls= 1.4 nH Ls 3&6 *36 '&6 3+3 '(&7 -&7 0.25 0.5 0.75 1.0 2.0 3.0 FREQUENCY (GHz) Fig. 1 Typical Device Selection by Frequency Part No. MA4ST320 MA4ST330 MA4ST340 MA4ST350 CJ0 (pF) 77.4 33.9 25.3 15.7 VJ (V) 11.71 8.91 14.25 14.55 M 6.51 5.15 7.41 7.26 V4.00 M/A-COM Division of AMP Incorporated 3 North America: Tel. (800) 366-2266, Fax (800) 618-8883 3 Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087 3 Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 www.macom.com AMP and Connecting at a Higher Level are trademarks. Specifications subject to change without notice. Low - Voltage / Wide Band Si Hyperabrupt Varactors MA4ST300 Electrical Specifications @ TA = +25C Breakdown Voltage @ IR = 10 A, Vb = 12 V Minimum Reverse Leakage Current @ VR = 10, IR = 100 nA Maximum Part No. CT (pF) f=1 MHz, VR=0.5V Nom. Max. Min. 48.0 58.0 63.0 22.0 26.0 30.0 15.0 18.5 21.0 9.5 11.8 13.5 CT (pF) f=1 MHz, VR=3.0V Max. 19.0 9.0 6.5 4.5 Capacitance Ratio CT0.5/CT3.0 Typ. 3.2 3.2 3.2 3.2 Q Factor f=50 MHz, VR= 2.0V Min. 300 350 350 400 MA4ST320 MA4ST330 MA4ST340 MA4ST350 Absolute Maximum Rating 1 Ordering Information These varactors are available in the three case styles shown. When ordering, specify the desired case style by adding the case designation (287 for SOT-23, 1146 for SOT-323, 1141 for SOD-323) as a suffix to the model number. For example, MA4ST330-1141 specifies the MA4ST330 varactor in the SOD-323 package. The MA4ST320 is available in the SOT-23 and SOD-323 packages only. The model number indicated is for a single varactor. The MA4ST330, 340 and 350 are available in common cathode pairs in the SOT-23 package, and are specified by adding "CK" to the end of the model number. For example MA4ST330CK-287 specifies the MA4ST330 varactor in common cathode pairs. Parameter Ratings Device Current 100 Ma 2, 3 650 mW Power Dissipation RF Input Power +13 dBm Junction Temperature 200C Storage Temperature -65C to +200C Thermal Resistance: jc=140C/W Typical Performance Curves Total Capacitance vs Reverse Voltage at 1 MHz 100 M A 4ST320 Nominal Change in Capacitance with Temperature 900 M A 4ST330 Total Capacitance (pF) M A 4ST340 10 M A 4ST350 TCC(PPM/C) 10 700 500 300 1 0 .1 1 R e v e r s e V o lta g e (V ) 100 0 1 2 3 4 5 6 R e v e r s e V o lta g e (V ) Nominal Q at 50 MHz vs Reverse Voltage 1000 M A 4ST340 Nominal Q M A 4ST350 M A 4ST330 M A 4ST320 100 0 .1 1 R e v e r s e V o lt a g e ( V ) 10 V4.00 M/A-COM Division of AMP Incorporated 3 North America: Tel. (800) 366-2266, Fax (800) 618-8883 3 Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087 3 Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 www.macom.com AMP and Connecting at a Higher Level are trademarks. Specifications subject to change without notice. Low - Voltage / Wide Band Si Hyperabrupt Varactors MA4ST300 Case Styles SOT-23 (Case Style 287) F D A N SOT-23 (Case Style 287) DIM. A B C D E F G H J K L DIM. INCHES MIN. MAX. 0.048 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 GRADIENT 1 10 max. 2 . . . 30 NOTE: 1. Applicable on all sides M G B K L H J C E 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 N SOT-323 (Case Style 1146) A E J H SOT-323 (Case Style 1146) DIM. A B C D E F G H J INCHES MIN. MAX. 0.063 0.087 0.045 0.053 0.079 0.087 0.047 0.055 0.008 0.016 0.031 0.039 0.004 0.003 0.006 0.004 0.010 MILLIMETERS MIN. MAX. 1.6 2.2 1.15 1.35 2.0 2.2 1.2 1.4 0.2 0.4 0.8 1.0 0.1 0.08 0.15 0.1 0.25 10 M A X . C B G F D SOT-323 (Case Style 1146) C F D G E SOT-323 (Case Style 1146) DIM. A B C D E F G H INCHES MIN. MAX. 0.043 0.004 0.008 0.010 0.016 0.003 0.006 0.063 0.075 0.045 0.057 0.091 0.106 MILLIMETERS MIN. MAX. 1.1 0.1 0.2 0.25 0.4 0.08 0.15 1.6 1.9 1.15 1.45 2.3 2.7 H B A V4.00 M/A-COM Division of AMP Incorporated 3 North America: Tel. (800) 366-2266, Fax (800) 618-8883 3 Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087 3 Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 www.macom.com AMP and Connecting at a Higher Level are trademarks. Specifications subject to change without notice. Low - Voltage / Wide Band Si Hyperabrupt Varactors MA4ST300 V4.00 M/A-COM Division of AMP Incorporated 3 North America: Tel. (800) 366-2266, Fax (800) 618-8883 3 Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087 3 Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 www.macom.com AMP and Connecting at a Higher Level are trademarks. Specifications subject to change without notice. |
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