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| Tuning Varactors Tuning Varactors: TV 2100, 2800 Series UHF Hyperabrupt Tuning Varactors Description The MicroMetrics UHF Tuning Varactors offer higher Q's than their VHF counterparts, but have slightly lower capacitance ratios. These diodes are excellent for octave tuning up to 800 MHz and for straight-line-frequency tuning between 3 and 8 volts of bias. They also achieve exceptionally high Q values and large signal capabilities when tuned between 9 and 20 volts, which extends their useful range to over 1 GHz. Closely matched sets are available, designated by suffix "A". Features * High Reliability, Silicon Planar * Octave Tuning at UHF * Octave Tuning at VHF * Straight-Line Frequency Applications over 3 to 8 Volt Bias Range * Low Cost Applications Packaging * Hermetically Sealed www..com Electrical Characteristics Total Capactiance, Ct1 F = 1 MHz (pF) Vr = 3 Vdc MIN/MAX 10.5/12.5 10.9/12.1 10.5/12.5 10.9/12.1 10.5/12.5 10.9/12.1 10.5/12.5 25/31 26.5/29.5 25/31 26.5/29.5 25/31 26.5/29.5 25/31 Vr = 8 Vdc MIN/MAX 4.3/5.7 4.6/5.4 4.3/5.7 4.6/5.4 4.3/5.7 4.6/5.4 10/13.5 11/13 10/13.5 11/13 10/13.5 11/13 Vr = 20 Vdc MIN/MAX 2.0/2.3 2.0/2.3 2.0/2.4 2.0/2.4 4.5/5.1 4.5/5.1 4.5/5.3 4.5/5.3 C(3V)/C(20V) MIN/MAX 5.0/5.8 5.0/5.8 4.7/5.5 4.7/5.5 5.2/6.1 5.2/6.1 4.9/5.8 4.9/5.8 Tuning Ratio Tr F = 1 MHz C(3V)/C(8V) MIN/MAX 1.9/2.7 2.0/2.6 1.9/2.8 2.0/2.7 - Notes: 1. Capacitance is measured in standard case style CS85. 28 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 Typical Performance 60 50 40 30 TOTAL CAPACITANCE (Ct) (pF) 20 TV2801 10 8 6 4 3 2 1 200 TV2801 Q (f=50 MHz) 1000 800 600 500 400 300 4000 3000 2000 Q= 1 2 f RSCT TV2101 TV2101 1 2 www..com 3 4 5 6 8 10 REVERSE VOLTAGE (V) 20 30 100 1 2 3 4 5 6 8 10 REVERSE VOLTAGE (V) 20 30 Q Vr = 3 Vdc F = 50 MHz Vbr (Vdc) Ir = 10 Adc Vr = 6 Vdc TYP/MAX 50/500 50/500 Ir (nAdc) Part Number MIN/TYP 300/350 300/350 200/300 200/300 200/300 200/300 100/150 200/250 200/250 150/200 150/200 150/200 150/200 75/100 MIN/TYP 22/30 22/30 22/30 22/30 15/18 15/18 8/12 22/30 22/30 22/30 22/30 15/18 15/18 8/12 Vr = 10 Vdc TYP/MAX 50/500 50/500 50/500 50/500 - Vr = 20 Vdc TYP/MAX 10/100 10/100 10/100 10/100 20/100 20/100 20/100 20/100 TV2101 TV2101A TV2102 TV2102A TV2103 TV2103A TV2104 TV2801 TV2801A TV2802 TV2802A TV2803 TV2803A TV2804 Maximum Ratings Parameter Reverse Voltage Forward Current Power Dissipation Operating Temperature Storage Temperature Symbol Vr If Pd (25C) Top Tstg Value Same as Vbr 100 250 -55 to + 150 -65 to + 200 Units Volts mA mW C C 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 29 Tuning Varactors Tuning Varactors: TV 2100, 2800 Series |
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