UHF variable capacitance diode
Description
DISCRETE SEMICONDUCTORS
DATA SHEET
alfpage
M3D049
BB134 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 0.
5% DMA • Very small plastic SMD package • C28: 1.
9 pF; ratio: 10 • Low series resistance.
MAM130
BB134
handbook, 4 columns
k
a
APPLICATIONS • Electronic tuning in UHF television tuners • VCO.
Fig.
1 Simplified outline (SOD323) and symbol.
DESCRIPTION The BB134 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 a direct matching assembly procedure.
The unmatched type, BB135 has the same specification.
ELECTRICAL CHARACTERISTICS Tj = 25 °C unless otherwise specified.
SYMBOL IR rs Cd PARAMETER reverse current diode series resistance diode capacitance capacitance ratio CONDITIONS VR = 30 V; see Fig.
3 VR = 30 V; Tj = 85 °C; see Fig.
3 f = 470 MHz; note 1 VR = 0.
5 V; f = 1 MHz; see Figs 2 and 4 VR = 28 V; f = 1 MHz; see Figs 2 and 4 C d ( 0.
5V ) --------------------C d ( 28V ) ∆C d --------Cd f = 1 MHz − − − 17.
5 1.
7 8.
9 MIN.
MAX.
10 200 0.
75 21 2.
1 12 UNIT nA nA Ω pF pF LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL VR IF Tstg Tj PARAMETER continuous reverse voltage continuous forward current storage temperature operating junction temperature − − −55 −55 MIN.
MAX.
30 20 +150 +125 V mA °C °C UNIT
Marking code: P4.
Cathode side indicated by a bar.
capacitance matching
VR = 0.
5 to 28 V; in a sequence of 4 diodes (gliding)
−
0.
5 2
% %
VR = 0.
5 to 28 V; in a sequence of 15 diodes − (gliding)
Note 1.
VR is the value at which Cd = 9 pF.
1998 Sep 15
2
Philips Semiconductors
Product specification
UHF variable capacitance diode
GRAPHICAL DATA
BB134
MBE874
handbook, full pagewidth
20
Cd (pF) 16
12
8
4
0 10 −1 f...
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