BB149

DISCRETE SEMICONDUCTORS DATA SHEET alfpage M3D049 BB149 UHF variable capacitance diode Product specification Supersedes data of 1996 May 03 1998 Sep 15 Philips Semiconductors Product specification UHF variable capacitance diode FEATURES Excellent linearity Excellent matching to 1% DMA Very small plastic SMD package C28: 2.1 pF; ratio 9 Low series resistance. MAM130 BB149 handbook, 4 columns k a APPLICATIONS Electronic tuning in UHF television tuners VCO. Fig.1 Simplified outline (SOD323) and symbol. DESCRIPTION The BB149 is a variable capacitance diode, fabricated in planar technology, and encapsulated in the SOD323 very small plastic SMD package. The excellent matching performance is achieved by gliding matching and a direct matching assembly procedure. The unmatched type, BB159 has the same specification. ELECTRICAL CHARACTERISTICS Tj = 25 °C unless otherwise specified. SYMBOL IR rs Cd PARAMETER reverse current CONDITIONS VR = 30 V; see Fig.3 VR = 30 V; Tj = 85 °C; see Fig.3 diode series resistance f = 470 MHz; note 1 diode capacitance capacitance ratio VR = 1 V; f = 1 MHz; see Figs 2 and 4 VR = 28 V; f = 1 MHz; see Figs 2 and 4 C d ( 1V ) -------------------C d ( 28V ) C d ( 19V ) -------------------C d ( 28V ) ∆C d --------Cd Note 1. VR is the value at which Cd = 9 pF. 1998 Sep 15 2 f = 1 MHz − − 18 1.9 8.2 MIN. − MAX. 10 200 0.75 19.5 2.25 10 UNIT nA nA Ω pF pF LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL V...