BB664 Datasheet

BB664 Silicon Variable Capacitance Diodes

BB644 /BB664... Silicon Variable Capacitance Diodes • For VHF TV-tuners • High capacitance ratio • Low series inductance • Low series resistance • Excellent uniformity and matching due to "in-line" matching assembly procedure BB644 BB664/-02V 1 2 Type BB644 BB664 BB664-02V Package SOD323 SCD80 .

Features

9 29.4 2.5 2.4 41.8 31.85 2.7 2.55 16.4 11.8 0.6 44.5 34.2 2.85 2.75 17.8 12.6 2 0.75 % Ω Capacitance ratio VR = 1 V, VR = 28 V, f = 1 MHz CT1/C T28 CT2/C T25 ∆CT/C T rS 15 11 - Capacitance ratio VR = 2 V, VR = 25 V, f = 1 MHz Capacitance matching1) VR = 1 V, VR = 28 V, f = 1 MHz Series resistance VR = 5 V, f = 470 MHz 1For details please refer to Application Note 047. 2 Jun-01-2004 BB644 /BB664... Diode capacitance CT = ƒ (VR) f = 1MHz Temperature coefficient of the diode capacitance TCc = ƒ (VR) 10 -3 70 pF 60 55 50 1/°C CT 45 40 35 30 25 20 15 10 5 0 0 5 10 15 20 25 V TCC 10.