BB909B
FEATURES
- Excellent linearity
- Matched to 2.5%
- Hermetically sealed leaded glass SOD68 (DO-34) package
- C28: 2.9 p F; ratio: 13.5
- Low series resistance. APPLICATIONS
- Electronic tuning in VHF television tuners, band B up to 460 MHz
- VCO. DESCRIPTION
The BB909A, BB909B are variable capacitance diodes, fabricated in planar technology, and encapsulated in hermetically sealed leaded glass SOD68 (DO-34) packages. ELECTRICAL CHARACTERISTICS Tj = 25 °C; unless otherwise specified. SYMBOL IR rs Cd PARAMETER reverse current diode series resistance diode capacitance BB909A CONDITIONS VR = 28 V; see Fig.3 VR = 28 V; Tj = 85 °C; see Fig.3 f = 100 MHz; note 1 see Figs 2 and 4 VR = 1 V; f = 1 MHz VR = 3 V; f = 1 MHz VR = 28 V; f = 1 MHz BB909B VR = 1 V; f = 1 MHz VR = 3 V; f = 1 MHz VR = 28 V; f = 1 MHz C d ( 1V ) -------------------C d ( 28V ) ∆C d --------Cd Note 1. VR is the value at which Cd = 30 p F. capacitance ratio f = 1 MHz handbook, halfpage k
BB909A; BB909B a
MAM234
Cathode side...
