Tuning Varactors Tuning Varactors: TV 2000 - 2500 Series VHF Hyperabrupt Tuning Varactors Description The MicroMetrics VHF Tuning Varactors are Ion-implanted highly reproducible hyperabrupt diodes which allow octave tuning of LC tanks up to 500 MHz or, with a reduced 1.5 to 1 frequency ratio, straight-line frequency tuning over a 3 to 8 volt tuning range. These UHF diodes give a full capacitance range of 20 to 200pF at 4 volts bias, ultra-high Q and excellent large signal handling capabilities, along with a 2 to 1 capacitance ratio by tuning from 9 to 20 volts of reverse bias. Closely matched sets of all VHF diodes are available along with "A" suffix versions having 5% capacitance tolerance at 4 volts of reverse bias. Features * High Reliability, Silicon Planar Hermetically Sealed * Octave Tuning or Ultra-High Q Applications * Straight-Line Frequency Applications Over 3 to 8 Volt Bias Range. * Low Cost Applications Packaging * Hermetically Sealed Maximum Ratings Parameter Reverse Voltage Forward Current Power Dissipation Operating Temperature Storage Temperature Electrical Characteristics Symbol Vr If Pd (25C) Top Tstg Total Capacitance, Ct1 F = 1 MHz (pF) Value Same as Vbr 100 250 -55 to +150 -65 to +200 Units Volts mA mW C C Tuning Ratio, Tr F = 1 MHz Vr = 4 Vdc MIN/MAX Vr = 8 Vdc MIN/MAX Vr = 20 Vdc MIN/MAX C(4V)/C(8V) MIN/MAX C(4V)/C(20V) MIN/MAX 18/22 19/21 18/22 19/21 18/22 45/55 47.5/52.5 45/55 47.5/52.5 45/55 100/120 105/115 100/120 105/115 100/120 140/170 147/163 140/170 147/163 140/170 180/220 190/210 180/220 190/210 180/220 7.5/10.5 7.8/9.2 7.5/10.5 7.8/9.2 7/11 18/25 18.4/21.6 18/25 18.4/21.6 17/26 39/55 41.5/48.6 39/55 41.5/48.6 36/58 55/80 59.8/70.2 55/80 59.8/70.2 50/85 70/105 78/92 70/105 78/92 65/110 3.1/3.9 3.1/3.9 7.3/9.2 7.3/9.2 15/19 15/19 22.5/28 22.5/28 29/36 29/36 - 1.8/2.7 2.0/2.7 1.8/2.8 2.2/2.8 1.8/2.8 2.15/2.8 1.8/2.8 2.1/2.7 1.8/2.8 2.0/2.7 - 5.4/6.6 5.4/6.6 5.6/6.9 5.6/6.9 5.9/7.3 5.9/7.3 5.8/7.1 5.8/7.1 5.8/7.1 5.8/7.1 - Notes: 1. Capacitance is measured in standard case style CS85. 30 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 Tuning Varactors Tuning Varactors: TV 2000 - 2500 Series Typical Performance 4000 TV2501 TV2401 200 TV2301 100 80 TV2201 60 50 40 3000 Q= 2000 1 2 f RSCT 1000 800 TV2001 Q (f = 50 MHz) TOTAL CAPACITANCE (Ct) (pF) 400 300 30 20 600 500 400 300 200 TV2001 10 8 TV2201 100 80 6 5 4 3 1 2 3 4 5 6 8 10 REVERSE VOLTAGE (V) TV2301 TV2401 60 50 40 20 30 TV2501 30 20 1 2 3 4 5 6 8 10 REVERSE VOLTAGE (V) Q Vr = 4 Vdc F = 50 MHz Vbr (Vdc) Ir = 10 Adc MIN/TYP MIN/TYP Vr = 6 Vdc TYP/MAX Vr = 10 Vdc TYP/MAX Vr = 20 Vdc TYP/MAX 160/220 160/230 160/220 160/220 80/120 125/165 125/165 125/165 125/165 65/100 80/110 80/110 80/110 80/110 40/60 70/90 70/90 70/90 70/90 35/50 60/80 60/80 60/80 60/80 30/45 22/30 22/30 15/18 15/18 8/12 22/30 22/30 15/18 15/18 8/12 22/30 22/30 15/18 15/18 8/12 22/30 22/30 15/18 15/18 8/12 22/30 22/30 15/18 15/18 8/12 50/250 50/250 50/250 50/500 50/500 15/100 15/100 20/100 20/100 30/100 30/100 50/500 50/500 70/500 70/500 - 15/100 15/100 20/100 20/100 30/100 30/100 50/500 50/500 70/500 70/500 - Ir (nAdc) 20 25 Part Number TV2001 TV2001A TV2002 TV2002A TV2004 TV2201 TV2201A TV2202 TV2202A TV2204 TV2301 TV2301A TV2302 TV2302A TV2304 TV2401 TV2401A TV2402 TV2402A TV2404 TV2501 TV2501A TV2502 TV2502A TV2504 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 31