BB198 Variable capacitance diode for VCO and VCXO Rev. 1 — 1 December 2010 Product data sheet 1. Product profile 1.1 General description The BB198 is a low voltage variable capacitance diode for the Voltage Controlled Oscillator (VCO) and Voltage Controlled Crystal Oscillator (VCXO) applications. CAUTION This device is sensitive to ElectroStatic Discharge (ESD). Therefore care should be taken during transport and handling. 1.2 Features and benefits Small plastic SMD package Very low operating voltage Large capacitance ratio (Cd(1V)/Cd(4V) = 4.3 minimum) Good capacitor-voltage (C-V) linearity Very low series resistance allowing high Q performance. 1.3 Applications Communication equipment Voltage Controlled Oscillators 2. Pinning information Table 1. Pinning Pin Description 1 cathode 2 anode Simplified outline Graphic symbol [1] 1 2 sym008 [1] The marking bar indicates the cathode. BB198 NXP Semiconductors Variable capacitance diode for VCO and VCXO 3. Ordering information Table 2. Ordering information Type number BB198 Package Name Description Version SC-79 plastic surface-mounted package; 2 leads SOD523 4. Marking Table 3. Marking codes Type number Marking code BB198 A3 5. Limiting values Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter Conditions Min Max Unit VR IF reverse voltage - 20 V forward current - 100 mA Ptot total power dissipation - 300 mW Tstg storage temperature −65 +150 °C Tj junction temperature −65 +150 °C Tsp = 90 °C 6. Thermal characteristics Table 5. Thermal characteristics Symbol Parameter Rth(j-sp) thermal resistance from junction to solder point Conditions Typ Unit 200 K/W 7. Characteristics Table 6. Characteristics Tj = 25 °C unless otherwise specified Symbol Parameter Conditions Min Typ Max Unit IR reverse current VR = 16 V - - 5 nA Cd diode capacitance f = 1 MHz VR = 1 V 25.0 - 28.5 pF VR = 4 V 4.8 - 6.8 pF rs diode series resistance VR = 1.5 V; f = 100 MHz - 0.48 0.8 Ω Cd(1V)/Cd(4V) diode capacitance ratio (1 V to 4 V) f = 1 MHz 4.3 - - BB198 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 1 December 2010 © NXP B.V. 2010. All rights reserved. 2 of 8 BB198 NXP Semiconductors Variable capacitance diode for VCO and VCXO 001aan162 60 Cd (pF) 40 20 0 0 1 2 3 4 5 VR (V) f = 1 MHz; Tj = 25 °C. Fig 1. Diode capacitance as function of reverse voltage; typical values 001aan163 1.0 rs (Ω) 001aan164 6 Cd(1V)/ Cd(VR) 0.8 4 0.6 (2) (1) 0.4 2 0.2 0 0 0 1 2 3 4 5 0 1 2 VR (V) 3 4 5 VR (V) Tj = 25 °C. f = 1 MHz; Tj = 25 °C. (1) f = 100 MHz (2) f = 470 MHz Fig 2. Diode reverse resistance as function of reverse voltage; typical values BB198 Product data sheet Fig 3. Diode capacitance ratio (1 V to VR) as function of reverse voltage; typical values All information provided in this document is subject to legal disclaimers. Rev. 1 — 1 December 2010 © NXP B.V. 2010. All rights reserved. 3 of 8 BB198 NXP Semiconductors Variable capacitance diode for VCO and VCXO 001aan165 1.1 Cd(Tamb)/ Cd(25°C) 001aan166 104 (1) 1.06 ΔC/ΔTamb (ppm/°C) (2) 1.02 (3) 103 0.98 (4) 0.94 (5) 102 0.9 0 1 2 3 0 VR (V) 1 2 3 VR (V) f = 1 MHz. f = 1 MHz. (1) Tamb = 85 °C (2) Tamb = 55 °C (3) Tamb = 25 °C (4) Tamb = −15 °C (5) Tamb = −55 °C Fig 4. Diode capacitance ratio (Tamb to 25 °C) as function of reverse voltage; typical values BB198 Product data sheet Fig 5. Capacitance temperature coefficient as function of reverse voltage; typical values All information provided in this document is subject to legal disclaimers. Rev. 1 — 1 December 2010 © NXP B.V. 2010. All rights reserved. 4 of 8 BB198 NXP Semiconductors Variable capacitance diode for VCO and VCXO 8. Package outline Plastic surface-mounted package; 2 leads SOD523 A c v M A HE A D 1 E 0 0.5 1 mm scale 2 DIMENSIONS (mm are the original dimensions) bp (1) UNIT A bp c D E HE v mm 0.65 0.58 0.34 0.26 0.17 0.11 1.25 1.15 0.85 0.75 1.65 1.55 0.1 Note 1. The marking bar indicates the cathode. OUTLINE VERSION REFERENCES IEC JEDEC SOD523 Fig 6. EUROPEAN PROJECTION JEITA ISSUE DATE 02-12-13 06-03-16 SC-79 Package outline SOD523 (SC-79) 9. Abbreviations Table 7. Abbreviations Acronym Description Q Quality factor SMD Surface Mounted Device 10. Revision history Table 8. Revision history Document ID Release date Data sheet status Change notice Supersedes BB198 v.1 20101201 Product data sheet - - BB198 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 1 December 2010 © NXP B.V. 2010. All rights reserved. 5 of 8 BB198 NXP Semiconductors Variable capacitance diode for VCO and VCXO 11. Legal information 11.1 Data sheet status Document status[1][2] Product status[3] Definition Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Product [short] data sheet Production This document contains the product specification. [1] Please consult the most recently issued document before initiating or completing a design. [2] The term ‘short data sheet’ is explained in section “Definitions”. [3] The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nxp.com. 11.2 Definitions Draft — The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet — A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. Product specification — The information and data provided in a Product data sheet shall define the specification of the product as agreed between NXP Semiconductors and its customer, unless NXP Semiconductors and customer have explicitly agreed otherwise in writing. In no event however, shall an agreement be valid in which the NXP Semiconductors product is deemed to offer functions and qualities beyond those described in the Product data sheet. 11.3 Disclaimers Limited warranty and liability — Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. In no event shall NXP Semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. Notwithstanding any damages that customer might incur for any reason whatsoever, NXP Semiconductors’ aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of NXP Semiconductors. malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk. Applications — Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Customers are responsible for the design and operation of their applications and products using NXP Semiconductors products, and NXP Semiconductors accepts no liability for any assistance with applications or customer product design. It is customer’s sole responsibility to determine whether the NXP Semiconductors product is suitable and fit for the customer’s applications and products planned, as well as for the planned application and use of customer’s third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. NXP Semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer’s applications or products, or the application or use by customer’s third party customer(s). Customer is responsible for doing all necessary testing for the customer’s applications and products using NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customer(s). NXP does not accept any liability in this respect. Limiting values — Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the device. Limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the Recommended operating conditions section (if present) or the Characteristics sections of this document is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. Terms and conditions of commercial sale — NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms, unless otherwise agreed in a valid written individual agreement. In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. NXP Semiconductors hereby expressly objects to applying the customer’s general terms and conditions with regard to the purchase of NXP Semiconductors products by customer. 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Export might require a prior authorization from national authorities. BB198 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 1 December 2010 © NXP B.V. 2010. All rights reserved. 6 of 8 BB198 NXP Semiconductors Variable capacitance diode for VCO and VCXO Non-automotive qualified products — Unless this data sheet expressly states that this specific NXP Semiconductors product is automotive qualified, the product is not suitable for automotive use. It is neither qualified nor tested in accordance with automotive testing or application requirements. NXP Semiconductors accepts no liability for inclusion and/or use of non-automotive qualified products in automotive equipment or applications. NXP Semiconductors’ specifications such use shall be solely at customer’s own risk, and (c) customer fully indemnifies NXP Semiconductors for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond NXP Semiconductors’ standard warranty and NXP Semiconductors’ product specifications. In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall use the product without NXP Semiconductors’ warranty of the product for such automotive applications, use and specifications, and (b) whenever customer uses the product for automotive applications beyond 11.4 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. 12. Contact information For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected] BB198 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 1 December 2010 © NXP B.V. 2010. All rights reserved. 7 of 8 BB198 NXP Semiconductors Variable capacitance diode for VCO and VCXO 13. Contents 1 1.1 1.2 1.3 2 3 4 5 6 7 8 9 10 11 11.1 11.2 11.3 11.4 12 13 Product profile . . . . . . . . . . . . . . . . . . . . . . . . . . General description . . . . . . . . . . . . . . . . . . . . . Features and benefits . . . . . . . . . . . . . . . . . . . . Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . Pinning information . . . . . . . . . . . . . . . . . . . . . . Ordering information . . . . . . . . . . . . . . . . . . . . . Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . Thermal characteristics . . . . . . . . . . . . . . . . . . Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . Package outline . . . . . . . . . . . . . . . . . . . . . . . . . Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . Revision history . . . . . . . . . . . . . . . . . . . . . . . . . Legal information. . . . . . . . . . . . . . . . . . . . . . . . Data sheet status . . . . . . . . . . . . . . . . . . . . . . . Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . Contact information. . . . . . . . . . . . . . . . . . . . . . Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 1 1 1 2 2 2 2 2 5 5 5 6 6 6 6 7 7 8 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP B.V. 2010. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected] Date of release: 1 December 2010 Document identifier: BB198