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| DISCRETE SEMICONDUCTORS DATA SHEET alfpage M3D152 BB212 AM variable capacitance double diode Product specification Supersedes data of April 1992 File under Discrete Semiconductors, SC01 1996 May 03 Philips Semiconductors Product specification AM variable capacitance double diode FEATURES * Leaded plastic package * C8: 19 pF; ratio: 29. APPLICATIONS * Electronic tuning in AM radio applications * VCO. DESCRIPTION The BB212 is a variable capacitance double diode with a common cathode, fabricated in planar technology, and encapsulated in the TO-92 variant leaded plastic package. handbook, halfpage 1 BB212 PINNING PIN 1 2 3 anode (a1) common cathode anode (a2) DESCRIPTION 2 3 1 2 3 MAM223 Fig.1 Simplified outline (TO-92 variant) and symbol. LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL Per diode VR IF Tstg Tj continuous reverse voltage continuous forward current storage temperature operating junction temperature - - -55 -55 12 100 +100 +85 V mA C C PARAMETER MIN. MAX. UNIT 1996 May 03 2 Philips Semiconductors Product specification AM variable capacitance double diode ELECTRICAL CHARACTERISTICS Tj = 25 C; unless otherwise specified. SYMBOL Per diode IR rs Cd reverse current diode series resistance diode capacitance VR = 10 V; see Fig.3 VR = 10 V; Tj = 85 C; see Fig.3 f = 500 MHz; note 1 see Figs 2 and 4 VR = 0.5 V; f = 1 MHz VR = 3 V; f = 1 MHz VR = 5.5 V; f = 1 MHz VR = 8 V; f = 1 MHz C d ( 0.5V ) --------------------C d ( 8V ) Note 1. VR is the value at which Cd = 500 pF. MATCHING PROPERTIES The capacitance of the two diodes in their common package may differ within certain limits. The total, relative capacitance difference between the two diodes in one package may be found in Fig.5. The anode a1 or a2 with the higher capacitance at VR = 3 V, is identified by a white dot. BASIC TOLERANCE The relative deviation of the capacitance value at VR = 0.5 V is maximum 3.5%. C 1 ( 0.5V ) - C 2 ( 0.5 V ) k = ------------------------------------------------------------- = <3.5% C 2 ( 0.5 V ) ADDITIONAL TOLERANCE (see Fig.5) capacitance ratio f = 1 MHz 500 140 40 - 22.5 - - - - - - - - - PARAMETER CONDITIONS MIN. TYP. BB212 MAX. UNIT 50 300 2.5 620 280 90 22 - nA nA pF pF pF pF In the range of VR = 0.5 V to 8 V the following additional tolerances are valid. S= C1 C1 ------ V R - ------ 0.5 V C2 C2 S < 2% for VR = 0.5 to 3 V S < 4% for VR = 3 to 5.5 V S < 6% for VR = 5.5 to 8 V. C1 is the capacitance of a1 when a1 > a2. C1 is the capacitance of a2 when a2 > a1. 1996 May 03 3 Philips Semiconductors Product specification AM variable capacitance double diode GRAPHICAL DATA 750 BB212 MGC814 handbook, full pagewidth Cd (pF) 500 250 0 10-1 1 VR (V) 10 f = 1 MHz. Fig.2 Diode capacitance as a function of reverse voltage; typical values. 10 3 handbook, halfpage IR (nA) MGC809 10 3 handbook, halfpage MLC815 TC d (K-1) 102 10 4 10 0 20 40 60 80 Tj ( C) o 100 10 5 10 1 1 10 VR (V) 102 Fig.4 Fig.3 Reverse current as a function of junction temperature; maximum values. Temperature coefficient of diode capacitance as a function of reverse voltage; typical values. 1996 May 03 4 Philips Semiconductors Product specification AM variable capacitance double diode BB212 MGC811 handbook, halfpage 20 S (%) 16 12 8 4 0 0 2 4 6 8 VR (V) 10 Fig.5 Capacitance matching as a function of reverse voltage; typical values. 1996 May 03 5 Philips Semiconductors Product specification AM variable capacitance double diode PACKAGE OUTLINE BB212 handbook, full pagewidth 0.40 min 4.2 max 1.6 5.2 max 12.7 min 0.48 0.40 1 4.8 max 2.54 2 3 0.66 0.56 2.0 max (1) MBC014 - 1 Dimensions in mm. (1) Terminal dimensions within this zone are uncontrolled to allow for flow of plastic and terminal irregularities. Fig.6 TO-92 variant. DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification Limiting values Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the specification. LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications. 1996 May 03 6 |
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