BB212 Datasheet | Philips Semiconductors

FEATURES - Leaded plastic package - C8: 19 p F; ratio: 29. APPLICATIONS - Electronic tuning in AM radio applications - VCO. DESCRIPTION The BB212 is a variable capacitance double diode with a mon cathode, fabricated in planar technology, and encapsulated in the TO-92 variant leaded plastic package. handbook, halfpage 1 PINNING PIN 1 2 3 anode (a1) mon 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 m A °C °C PARAMETER MIN. MAX. UNIT 1996 May 03 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 p F. MATCHING PROPERTIES The capacitance of the two diodes in their mon 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. MAX. UNIT 50 300 2.5 620 280 90 22 - n A n A Ω p F p F p F p F In the range of VR = 0.5 V...