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| KV1440 VARIABLE CAPACITANCE DIODE FEATURES s Very Low Series Resistance s Excellent Linearity (CV Curve) s Large Capacitance Ratio (A1 = 1.23 minimum, A2 = 1.65 minimum) s Two Diodes in a Miniature Package (SOT23-3) s Very Small Capacitance Deviation at Tape/Reel APPLICATIONS s FM Radio s Voltage Controlled Oscillator DESCRIPTION The KV1440 is specially made to be used as a tuning element in radio cassettes, stereos, car radios, and other consumer radios. The KV1440 minimizes cross modulation, allowing good signal-to-noise ratio in the overall design. The KV1440 is available in the miniature SOT23-3 surface mount package. CLASSIFICATION RANK C MIN C2 MAX 1 43.00 44.60 2 44.00 45.60 3 45.00 46.60 (Unit: pF) 4 46.00 47.60 KV1440 3 20 P ORDERING INFORMATION 1 2 KV1440 Tape/Reel Code TAPE/REEL CODE TL: Tape Left January 2000 TOKO, Inc. Page 1 KV1440 ABSOLUTE MAXIMUM RATINGS Reverse Voltage ....................................................... 18 V Forward Current .................................................... 50 mA Power Dissipation .............................................. 100 mW Storage Temperature Range ................... -55 to +150 C Operating Temperature Range ...................-55 to +85 C Lead Soldering Temperature (10 s) ...................... 235 C ELECTRICAL CHARACTERISTICS Test conditions: TA = 25 C SYMBOL V REV IREV C2 Q A1 A2 PARAMETER Reverse Voltage Reverse Current Diode Capacitance 2 Quality Factor Capacitance Ratio Capacitance Ratio TEST CONDITIONS IREV = 10 A V REV = 10.0 V V REV = 2.0 V, f = 1 MHz V REV = 3.0 V, f = 100 MHz C2 / C4 C2 / C8 MIN 16 TYP MAX UNITS V 50 43.00 100 1.23 1.65 1.33 1.75 47.60 nA pF Note 1: Diode Capacitance measured with HP 4279A or equivalent instruments (at OSC level 20 mVrms, 5 mVrms). Note 2: Quality Factor measured with HP 4191A or equivalent instruments. Page 2 January 2000 TOKO, Inc. KV1440 TYPICAL PERFORMANCE CHARACTERISTICS CAPACITANCE vs. REVERSE VOLTAGE 100 TA = 25 C f = 1 MHz CAPACITANCE (pF) REVERSE CURRENT vs. REVERSE VOLTAGE 1n TA = 85 C 100 p IREV (A) 10 p TA = 55 C 30 1p TA = 25 C 10 0 1 2 3 4 5 6 7 8 VREV (V) 100 f 0 2 4 6 8 10 12 14 16 VREV (V) QUALITY FACTOR vs. REVERSE VOLTAGE 1000 TA = 25 C f = 50 MHz RS () SERIES RESISTANCE vs. FREQUENCY 0.5 VREV = 2 V TA = 25 C 0.4 Q 100 100 MHz 70 MHz 0.3 10 0.2 0 1 2 3 4 5 6 7 8 50 100 f (MHz) 300 500 VREV (V) C (TA) C (25 C) vs. REVERSE VOLTAGE TEMPERATURE COEFFICIENT vs. REVERSE VOLTAGE 1000 TA = -55 C to +85 C f = 1 MHz 1.05 1.04 1.03 1.02 f = 1 MHz C (25 C) C (TA) 1.01 1.00 0.99 0.98 0.97 0.96 0.95 0 1 +55 C +25 C -15 C -55 C C / TA (ppm/ C) 7 8 TA = +85 C 300 2 3 4 5 6 100 0 1 2 3 4 5 6 7 8 VREV (V) VREV (V) January 2000 TOKO, Inc. Page 3 KV1440 PACKAGE OUTLINE Marking Information Product Code F4 SOT23-3 Mark 0.10 0.4 + 0.05 Recommended Mounting Pad 0.1 M 1.3 max 1.1 + 0.10 0.15 0.05 0 ~ 0.1 + 0.1 2.8 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-KV1471E 0798O0.0K January 2000 TOKO, Inc. Printed in the USA |
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