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| 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 1 BB545 BB565/-02V 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 = 25C, unless otherwise specified Parameter Diode reverse voltage Peak reverse voltage Forward current Operating temperature range Storage temperature R 5k IF Top Tstg 20 -55 ... 150 -55 ... 150 mA C Symbol VR VRM Value 30 35 Unit V 1 Nov-07-2002 BB545 /BB565... Electrical Characteristics at TA = 25C, unless otherwise specified Symbol Values Parameter min. DC Characteristics Reverse current VR = 30 V VR = 30 V, TA = 85 C AC Characteristics Diode capacitance VR = 1 V, f = 1 MHz VR = 2 V, f = 1 MHz VR = 25 V, f = 1 MHz VR = 28 V, f = 1 MHz CT Unit max. nA typ. IR 10 200 pF 18.5 13.2 1.85 1.8 20 14.8 2.07 2 10 7.2 21.5 16.4 2.28 2.2 11 8.1 % Capacitance ratio VR = 1 V, VR = 28 V, f = 1 MHz CT1 /CT28 CT2 /CT25 CT/CT 9 6.3 - Capacitance ratio VR = 2 V, VR = 25 V, f = 1 MHz VR = 1V to 28V, f = 1 MHz, 7 diodes sequence, BB545 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 VR = 3 V, f = 470 MHz 1For details please refer to Application Note 047 2 Nov-07-2002 Capacitance matching1) rS 0.5 0.7 0.6 2.5 1.5 2 - - BB545 /BB565... Diode capacitance CT = f = 1MHz (VR ) Normalized diode capacitance C(TA) /C(25C)= (TA ); f = 1MHz VR = Parameter 22 pF - 1.08 16 CTA/C 25C 18 CT 14 12 1.04 1V 1.02 10 8 6 4 2 0 0 5 10 15 20 V 1 0.98 30 0.96 -30 -10 VR 10 -3 1/C TC C 10 -4 IR 10 -5 10 0 capacitance TCc = (VR) VR = 28V 10 4 pA 10 3 10 2 10 1 V 10 2 10 1 -30 -10 10 30 VR 3 Temperature coefficient of the diode Reverse current IR = 2V 25V 10 30 50 70 C 110 TA (TA ) 50 70 C 100 TA Nov-07-2002 BB545 /BB565... Reverse current IR = TA = Parameter 10 4 pA 85C (VR) 10 3 10 2 IR 10 1 10 0 10 -1 0 10 25C 10 1 V 10 2 VR 4 Nov-07-2002 |
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