KV1450 VARIABLE CAPACITANCE DIODE FEATURES APPLICATIONS ■ ■ ■ ■ ■ ■ FM Radio ■ Voltage Controlled Oscillator Very Low Series Resistance Excellent Linearity (CV Curve) Large Capacitance Ratio (A1 = 4.60 minimum) Two Diodes in a Miniature Package (SOT23-3) Very Small Capacitance Deviation at Tape/Reel DESCRIPTION The KV1450 variable capacitance diode was specially made to be used as tuning elements in car radios, radio cassettes, stereos, and other consumer radios. The KV1450 is suitable for wide band tuning from 76 to 108 MHz. If the KV450 is used only for FM reception, it is possible to operate it at 4.5 V so it is very useful in lowering the power demands of the set. The KV1450 is available in the miniature SOT23-3 package. CLASSIFICATION RANK (Unit: pF) 1 2 3 4 5 MIN 59.15 60.30 61.50 62.75 64.00 MAX 60.90 62.10 63.35 64.65 65.90 C KV1450 C1 3 20 P ORDERING INFORMATION 1 2 KV1450 Tape/Reel Code TAPE/REEL CODE TL: Tape Left July 1999 TOKO, Inc. Page 1 KV1450 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 V REV Reverse Voltage IREV = 10 µA IREV Reverse Current V REV = 10.0 V C1 Diode Capacitance 1 V REV = 1.0 V, f = 1 MHz 59.15 C6 Diode Capacitance 6 V REV = 6.0 V, f = 1 MHz C9 Diode Capacitance 9 V REV = 9.0 V, f = 1 MHz Q Quality Factor V REV = 3.0 V, f = 100 MHz A1 Capacitance Ratio C1 / C9 TYP MAX 16 UNITS V 100 nA 65.90 pF 17.67 23.54 pF 10.77 13.26 pF 62.50 60 4.60 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 July 1999 TOKO, Inc. KV1450 TYPICAL PERFORMANCE CHARACTERISTICS REVERSE CURRENT vs. REVERSE VOLTAGE CAPACITANCE vs. REVERSE VOLTAGE 100 1n TA = 85 °C 100 p IREV (A) CAPACITANCE (pF) TA = 25 °C f = 1 MHz TA = 55 °C 10 p TA = 25 °C 30 1p 10 0 1 2 3 4 5 6 7 8 100 f 9 0 2 4 6 QUALITY FACTOR vs. REVERSE VOLTAGE 1000 14 16 VREV = 3 V TA = 25 °C 0.6 RS (Ω) Q 12 0.8 TA = 25 °C 70 MHz 100 100 MHz 0.4 10 0 1 2 3 4 5 6 7 8 9 50 100 300 VREV (V) C (TA) C (25 °C) TEMPERATURE COEFFICIENT vs. REVERSE VOLTAGE 1000 TA = -55 °C to +85 °C f = 1 MHz f = 1 MHz ∆C /∆ TA (ppm/ C) TA = +85 °C 1.03 1.02 +55 °C 1.01 500 f (MHz) vs. REVERSE VOLTAGE 1.05 1.04 C (25 C) 10 SERIES RESISTANCE vs. FREQUENCY f = 50 MHz C (TA) 8 VREV (V) VREV (V) 1.00 +25 °C 0.99 -15 °C 0.98 -55 °C 300 0.97 0.96 0.95 0 1 2 3 4 5 VREV (V) July 1999 TOKO, Inc. 6 7 8 9 100 0 1 2 3 4 5 6 7 8 9 VREV (V) Page 3 KV1450 PACKAGE OUTLINE Marking Information SOT23-3 0.8 Product Code F5 1.0 3 e1 2.4 Marking e 0.95 1 2 0.4 e e 0.95 Recommended Mounting Pad + 0.15 0.05 0.1 M e 0.95 0.95 1.5 1.1 + 0.15 0.05 0 ~ 0.1 0.5 0.16 1.15 0.7 + 0.3 2.8 2.8 + 0.3 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 July 1999 TOKO, Inc. IC-xxx-KV1471E 0798O0.0K Printed in the USA