BB914... Silicon Variable Capacitance Diode For FM radio tuner with extended frequency band High tuning ratio at low supply voltage (car radio) Monolitic chip (common cathode) for perfect dual diode tracking Good linearity for C- V curve High figure of merit BB914 3 D 2 D 1 1 2 Type BB914 Package SOT23 Configuration common cathode LS(nH) Marking 1.8 SM Maximum Ratings at TA = 25C, unless otherwise specified Parameter Symbol Value Unit Diode reverse voltage VR 18 Peak reverse voltage VRM 20 Forward current IF 50 mA Operating temperature range Top -55 ... 125 C Storage temperature Tstg -55 ... 150 V ( R 5k ) 1 Dec-04-2002 BB914... Electrical Characteristics at TA = 25C, unless otherwise specified Symbol Values Parameter min. typ. - - - - Unit max. DC Characteristics Reverse current IR VR = 16 V VR = 16 V, TA = 85 C nA 20 200 AC Characteristics Diode capacitance pF CT VR = 2 V, f = 1 MHz 42.5 43.75 45 VR = 8 V, f = 1 MHz 17.6 18.7 19.75 CT2 /CT8 2.28 2.34 2.42 CT/CT - - 1.5 % rS - 0.28 - Capacitance ratio VR = 2 V, VR = 8 V, f = 1 MHz Capacitance matching1) VR = 2 V, VR = 8 V, f = 1 MHz Series resistance VR = 2 V, f = 100 MHz 1For details please refer to Application Note 047. 2 Dec-04-2002 BB914... Diode capacitance CT = (VR ) Capacitance ratio CTref /CT = (VR ) f = 1MHz f = 1MHz 100 5 pF - CTref / C T 80 CT 70 60 4 3.5 50 2.5 40 2 30 1.5 20 1 10 0.5 0 0 1 2 3 4 5 6 7 8 V 0 0 10 1V 3 2V 3V 1 2 3 4 5 6 7 8 V 10 VR VR 3 Dec-04-2002 Package SOT23 Package Outline 1.1 MAX. 2.9 0.1 2 2.6 MAX. 10 MAX. 1.3 0.1 1 +0.2 acc. to DIN 6784 10 MAX. 3 0.4 +0.1 -0.05 0.1 MAX. B A 0.08...0.15 C 0.95 2... 30 1.9 0.25 M B C 0.20 M A Foot Print 0.9 1.1 0.9 0.8 0.8 1.2 Marking Layout Manufacturer Pin 1 Date code (Year/Month) 2003, July Type code BCW66 Example Packing Code E6327: Reel o180 mm = 3.000 Pieces/Reel Code E6433: Reel o330 mm = 10.000 Pieces/Reel 4 0.2 Pin 1 3.15 8 2.65 2.13 0.9 1.15 Impressum Published by Infineon Technologies AG, St.-Martin-Strasse 53, 81669 Munchen (c) Infineon Technologies AG 2005. All Rights Reserved. Attention please! The information herein is given to describe certain components and shall not be considered as a guarantee of characteristics. Terms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits, descriptions and charts stated herein. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office (www.Infineon.com). Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.