BB814

BB814... Silicon Variable Capacitance Diodes
For FM radio tuners with extended frequency band
High tuning ratio at low supply voltage (car radio)
Monolithic chip (common cathode) for perfect dual diode tracking
Coded capacitance groups and group matching available BB814 3 D 1 D 2 1 2 Type BB814 Package SOT23 Configuration common cathode LS(nH) Marking 1.8 SH1/2* *For differences see next page Capacitance groups Maximum Ratings at TA = 25°C, unless otherwise specified Parameter Symbol Diode reverse voltage Peak reverse voltageForward current Operating temperature range Storage temperature VR VRM IF Top Tstg Value 18 20 50 -55 ... 125 -55 ... 150 Unit V mA °C 1 Dec-04-2002 BB814... Electrical Characteristics at TA = 25°C, unless otherwise specified Symbol Values Parameter min. DC Characteristics Reverse current VR = 16 V VR = 16 V, TA = 60 °C AC Characteristics Diode capacitance1) VR = 2 V, f = 1 MHz VR = 8 V, f = 1 MHz CT Unit max. nA typ. IR 20 200 pF 43 19.1 44.75 20.8 2.15 0.18 200 46.5 22.7 2.25 3 % Capacitance ratio VR = 2 V, VR = 8 V, f = 1 MHz CT2 /CT8 2.05 - Capacitance matching2) VR = 2 V, VR = 8 V, f = 1 MHz
CT/CT rS Q Series resistance VR = 2 V, f = 100 MHz  Q factor f = 100 MHz, VR = 2 V 1Capacitance CT/groups C2V C2V C8V C8V 2For groups at 2V and 8V, coded 1; 2 1 2 43pF 45pF 19.1pF 44.5pF 46.5pF 19.75pF min max min max 21.95pF 22.7pF details please refer to Application Note 047. 2 Dec-04-2002 BB814... Diode capacita...