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| KV1843E VARIABLE CAPACITANCE DIODE FEATURES s s s s s Very Small URD Surface Mount Package Very Low Series Resistance Large Capacitance Ratio (A = 2.21 minimum) Excellent Linearity (CV Curve) Very Small Capacitance Deviation at Tape/Reel APPLICATIONS s UHF Communications Equipment s Voltage Controlled Oscillator s 900 MHz Communications Systems DESCRIPTION The KV1843E is a variable capacitance diode designed for UHF applications. The KV1843E is available in a very small URD Surface Mount Package. KV1843E ORDERING INFORMATION KV1843E Tape/Reel Code TAPE/REEL CODE TR: Tape Right August 1999 TOKO, Inc. Page 1 KV1843E ABSOLUTE MAXIMUM RATINGS Reverse Voltage ....................................................... 18 V Forward Current ...................................................... 7 mA Power Dissipation ................................................ 25 mW Storage Temperature Range ................... -55 to +150 C Operating Temperature Range ................... -55 to +85 C ELECTRICAL CHARACTERISTICS Test conditions: TA = 25 C SYMBOL V REV IREV C1 C4 RS A PARAMETER Reverse Voltage Reverse Current Diode Capacitance 1 Diode Capacitance 4 Series Resistance Capacitance Ratio TEST CONDITIONS IREV = 1 A VREV = 10 V VREV = 1 V, f = 1 MHz VREV = 4 V, f = 1 MHz C = 8 pF, f = 470 MHz C1 / C4 2.21 17.09 6.63 18.14 7.30 0.35 MIN 12.0 5.00 19.20 7.96 0.40 TYP MAX UNITS V nA pF pF Note 1: Diode Capacitance measured with HP 4279A or equivalent instruments (at OSC level 20 mVrms, 5 mVrms). Note 2: Series Resistance measured with HP 4191A or equivalent instruments. Page 2 August 1999 TOKO, Inc. KV1843E TYPICAL PERFOMANCE CHARACTERISTICS CAPACITANCE vs. REVERSE VOLTAGE 100 TA = 25 C f = 1 MHz 1000 QUALITY FACTOR vs. REVERSE VOLTAGE TA = 25 C f = 50 MHz 100 MHz 300 MHz Q 100 470 MHz CAPACITANCE (pF) 10 1 0 2 VREV (V) 4 6 10 0 2 VREV (V) REVERSE CURRENT vs. REVERSE VOLTAGE 0.1 TA = +85 C 4 6 SERIES RESISTANCE vs. FREQUENCY 1.00 VR = 3 V TA = 25 C 0.01 IREV (nA) +55 C RS () 0.001 +25 C 0.10 10 100 FREQUENCY (MHz) C (TA C)/C (25 C) vs. REVERSE VOLTAGE 1000 0.0001 0 2 4 6 8 10 VREV (V) 1.08 1.06 f = 1 MHz TA = +85 C +55 C +25 C TEMPERATURE COEFFICIENT vs. REVERSE VOLTAGE 1000 TA = +55 C to +85 C f = 1 MHz C (TA C)/C (25 C) 1.04 1.02 1.00 0.98 0.96 0.94 0.92 0 1 -15 C -55 C 2 3 VREV (V) 4 5 6 C/ TA (ppm/ C) 100 0 1 2 3 VREV (V) 4 5 6 August 1999 TOKO, Inc. Page 3 KV1843E PACKAGE OUTLINE Marking Information Product Code 2.3 URD R Marking 0.8 0.8 1.25 Cathode Mark Recommended Mount Pad 1.7 +0.15 -0.05 0.13 0.2 min + 0.3 0.3 2.5 Dimensions are shown in millimeters Tolerance: x.x = 0.2 mm (unless otherwise specified) Toko America, Inc. Headquarters 1250 Feehanville Drive, Mount Prospect, Illinois 60056 Tel: (847) 297-0070 Fax: (847) 699-7864 TOKO AMERICA REGIONAL OFFICES Midwest Regional Office Toko America, Inc. 1250 Feehanville Drive Mount Prospect, IL 60056 Tel: (847) 297-0070 Fax: (847) 699-7864 Western Regional Office Toko America, Inc. 2480 North First Street , Suite 260 San Jose, CA 95131 Tel: (408) 432-8281 Fax: (408) 943-9790 Eastern Regional Office Toko America, Inc. 107 Mill Plain Road Danbury, CT 06811 Tel: (203) 748-6871 Fax: (203) 797-1223 Semiconductor Technical Support Toko Design Center 4755 Forge Road Colorado Springs, CO 80907 Tel: (719) 528-2200 Fax: (719) 528-2375 Visit our Internet site at http://www.tokoam.com The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc. Page 4 (c) 1999 Toko, Inc. All Rights Reserved IC-xxx-KV1845E 0798O0.0K 0 ~ 0.1 0.9 August 1999 TOKO, Inc. Printed in the USA |
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