BB545 /BB565... Silicon Variable Capcitance Diode For UHF-TV-tuners High capacitance ratio Low series inductance Low series resistance Excellent uniformity and matching due to "in-line" matching assembly procedure BB545 BB565/-02V 1 2 Type BB545 BB565 BB 565-02V Package SOD323 SCD80 SC79 Configuration single single single LS (nH) 1.8 0.6 0.6 Marking white U CC C Maximum Ratings at TA = 25°C, unless otherwise specified Parameter Symbol Diode reverse voltage VR 30 Peak reverse voltage VRM 35 Forward current IF 20 mA Operating temperature range Top -55 ... 150 °C Storage temperature Tstg -55 ... 150 Value Unit V R 5k 1 Nov-07-2002 BB545 /BB565... Electrical Characteristics at TA = 25°C, unless otherwise specified Symbol Values Parameter min. typ. Unit max. DC Characteristics Reverse current IR nA VR = 30 V - - 10 VR = 30 V, TA = 85 °C - - 200 AC Characteristics Diode capacitance pF CT VR = 1 V, f = 1 MHz 18.5 20 21.5 VR = 2 V, f = 1 MHz 13.2 14.8 16.4 VR = 25 V, f = 1 MHz 1.85 2.07 2.28 VR = 28 V, f = 1 MHz 1.8 2 2.2 CT1 /CT28 9 10 11 CT2 /CT25 6.3 7.2 8.1 Capacitance ratio - VR = 1 V, VR = 28 V, f = 1 MHz Capacitance ratio VR = 2 V, VR = 25 V, f = 1 MHz CT/CT Capacitance matching1) % VR = 1V to 28V, f = 1 MHz, 7 diodes sequence, BB545 - - 2.5 - 0.5 1.5 - 0.7 2 - 0.6 - VR = 1V to 28V, f = 1 MHz, 4 diodes sequence, BB565/ -02V VR = 1V to 28V, f = 1 MHz, 7 diodes sequence, BB565/ -02V Series resistance rS VR = 3 V, f = 470 MHz 1For details please refer to Application Note 047 2 Nov-07-2002 BB545 /BB565... Diode capacitance CT = (VR ) Normalized diode capacitance f = 1MHz C(TA) /C(25°C)= (TA ); f = 1MHz VR = Parameter 1.08 22 pF - CTA/C 25°C 18 CT 16 14 1.04 1V 12 2V 1.02 10 25V 8 1 6 4 0.98 2 0 0 5 10 15 V 20 0.96 -30 30 -10 10 30 50 °C 70 VR Temperature coefficient of the diode Reverse current IR = (TA ) capacitance TCc = (VR) VR = 28V 10 110 TA -3 10 4 pA 1/°C IR TC C 10 3 10 -4 10 2 10 -5 10 0 10 1 V 10 10 1 -30 2 VR -10 10 30 50 70 °C 100 TA 3 Nov-07-2002 BB545 /BB565... Reverse current IR = (VR) TA = Parameter 10 4 pA 85°C IR 10 3 10 2 25°C 10 1 10 0 10 -1 0 10 10 1 V 10 2 VR 4 Nov-07-2002