KV1720S VARIABLE CAPACITANCE DIODE FEATURES APPLICATIONS n Excellent Linearity (CV Curve) n Large Capacitance Ratio (A = 2.00 minimum) with n FM Radio n Voltage Controlled Oscillator Very Low Series Resistance n Two Diodes in a Miniature Package (SOT23-3) n Very Small Capacitance Deviation at Tape/Reel DESCRIPTION The KV1720S is specially made to be used as a tuning element in radio cassettes, stereos, car radios, and other consumer radios. The KV1720S minimizes cross modulation, allowing good signal-to-noise ratio in the overall design. The KV1720S is available in the miniature SOT23-3 surface mount package. CLASSIFICATION RANK 1 2 3 4 MIN 41.17 42.33 43.52 44.75 MAX 42.76 43.96 45.20 46.48 C C2 (Unit: pF) Note: Rank is determined after testing and marked on the reel. All the diodes on a reel have the same rank, but rank can not be specified when ordering. KV1720R 3 C2 20P 1 2 ORDERING INFORMATION KV1720S Tape/Reel Code TAPE/REEL CODE TL: Tape Left October 2000 TOKO, Inc. Page 1 KV1720S ABSOLUTE MAXIMUM RATINGS Reverse Voltage ........................................................ 18V 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 VREV Reverse Voltage IREV = 10 µA IREV Reverse Current VREV = 10 V C2 Diode Capacitance 2 VREV = 2.0 V, f = 1 MHz C8 Diode Capacitance 8 VREV = 8.0 V, f = 1 MHz RS Series Resistance VREV = 1.0 V, f = 100 MHz A Capacitance Ratio C2 / C8 Note 1: Note 2: Note 3: Note 4: MIN TYP MAX 12 UNITS V 10 nA 41.17 46.48 pF 16.00 21.34 pF 0.3 Ω 2.00 2.60 Diode Capacitance measured with HP 4279A or equivalent instruments (at OSC level 20 mVrms, ± 5 mVrms). Series Resistance measured with HP 4291B or equivalent instruments. The tolerance of two adjacent parts on a reel is within 3% at C2, C5, and C8. The value of capacitance is the average of 2 back to back type diodes. Page 2 October 2000 TOKO, Inc. KV1720S TYPICAL PERFORMANCE CHARACTERISTICS C(TA°C) / C25°C) vs. REVERSE VOLTAGE CAPACITANCE vs. REVERSE VOLTAGE 100 C(TA°C) / C(25°C) CAPACITANCE (pF) TA = +25°C f = 1MHz 10 0 1 2 3 4 5 VREV (V) 6 7 8 REVERSE CURRENT vs. REVERSE VOLTAGE 1.06 1.05 f = 1MHz 1.04 1.03 + 55°C TA = +85°C 1.02 1.01 +25°C 1.00 -15°C 0.99 0.98 -55°C 0.97 0.96 0.95 0.94 0 1 2 3 4 5 6 7 8 VREV (V) Q vs. REVERSE VOLTAGE 1000 1 f = 70MHz TA = +85°C 100MHz 200MHz +55°C 0.01 Q IREV (nA) 0.1 100 +25°C TA = +25°C 0.001 0.0001 10 0 2 4 6 8 10 VREV (V) 12 14 16 TEMPERATURE-COEFFICIENT (ppm / °C) Rs (Ω) Vr = 1v TA = +25°C 0.5 0.3 0.1 October 2000 TOKO, Inc. 2 3 4 5 VREV (V) 6 7 8 1000 1 100 FREQUENCY (MHz) 1 TEMPERATURE-COEFFICIENT vs. REVERSE VOLTAGE SERIES RESISTANCE vs. FREQUENCY 10 0 TA = +55°C~+85°C f = 1MHz 300 100 1000 0 1 2 3 4 5 VREV (V) 6 7 8 Page 3 KV1720S PACKAGE OUTLINE Marking Information SOT23-3 Product Code C2 2.4 Mark Recommended Mounting Pad +0.10 0.4 - 0.05 e e 1.6 1.1±0.1 +0.10 - 0.05 0.4 0.15 0~ 0.1 1.3 max 2.9 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 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 October 2000 TOKO, Inc. IC-xxx-KV1710S XXXXX.0K Printed in the USA