KV1440 VARIABLE CAPACITANCE DIODE FEATURES APPLICATIONS ■ Very Low Series Resistance ■ Excellent Linearity (CV Curve) ■ Large Capacitance Ratio (A1 = 1.23 minimum, A2 = 1.65 minimum) ■ Two Diodes in a Miniature Package (SOT23-3) ■ Very Small Capacitance Deviation at Tape/Reel ■ FM Radio ■ 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 1 2 3 4 MIN 43.00 44.00 45.00 46.00 MAX 44.60 45.60 46.60 47.60 C C2 (Unit: pF) 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 PARAMETER TEST CONDITIONS MIN TYP MAX V REV Reverse Voltage IREV = 10 µA 16 IREV Reverse Current V REV = 10.0 V C2 Diode Capacitance 2 V REV = 2.0 V, f = 1 MHz Q Quality Factor V REV = 3.0 V, f = 100 MHz 100 A1 Capacitance Ratio C2 / C4 1.23 1.33 A2 Capacitance Ratio C2 / C8 1.65 1.75 UNITS V 43.00 50 nA 47.60 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 REVERSE CURRENT vs. REVERSE VOLTAGE CAPACITANCE vs. REVERSE VOLTAGE 1n 100 TA = 85 °C 100 p IREV (A) CAPACITANCE (pF) TA = 25 °C f = 1 MHz 30 TA = 55 °C 10 p TA = 25 °C 1p 100 f 0 10 0 1 2 3 4 5 6 7 8 2 4 0.4 RS (Ω) Q 70 MHz 100 MHz 0.3 0.2 0 1 2 C (TA) C (25 °C) 3 4 5 6 7 8 50 100 1000 ∆C /∆ TA (ppm/ C) TA = +85 °C 1.02 +55 °C 1.01 +25 °C 1.00 -15 °C 0.99 0.98 -55 °C 0.97 500 TEMPERATURE COEFFICIENT vs. REVERSE VOLTAGE TA = -55 °C to +85 °C f = 1 MHz f = 1 MHz 1.03 300 f (MHz) vs. REVERSE VOLTAGE 1.05 1.04 C (25 C) 14 16 VREV = 2 V TA = 25 °C VREV (V) C (TA) 12 0.5 TA = 25 °C f = 50 MHz 10 10 SERIES RESISTANCE vs. FREQUENCY QUALITY FACTOR vs. REVERSE VOLTAGE 100 8 VREV (V) VREV (V) 1000 6 300 0.96 0.95 0 1 2 3 4 5 VREV (V) January 2000 TOKO, Inc. 6 7 8 100 0 1 2 3 4 5 6 7 8 VREV (V) Page 3 KV1440 PACKAGE OUTLINE Marking Information SOT23-3 Product Code F4 Mark Recommended Mounting Pad + 0.10 0.15 0.05 0 ~ 0.1 1.1 + 0.1 M 0.1 1.3 max 0.10 0.4 + 0.05 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 © 1999 Toko, Inc. All Rights Reserved January 2000 TOKO, Inc. IC-xxx-KV1471E 0798O0.0K Printed in the USA