BB909A Datasheet, PDF (2/4 Pages) NXP Semiconductors – VHF variable capacitance diodes

Philips Semiconductors
VHF variable capacitance diodes
Product specification
BB909A; BB909B
FEATURES
• Excellent linearity
• Matched to 2.5%
• Hermetically sealed leaded glass
SOD68 (DO-34) package
• C28: 2.9 pF; 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.
handbook, halfpagke
a
MAM234
Cathode side indicated by a green band on a black body (BB909A and BB909B).
Additional red band (BB909A only).
Fig.1 Simplified outline (SOD68; DO-34) and symbol.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
V_R
continuous reverse voltage
I_F
continuous forward current
T_stg
storage temperature
T_j
operating junction temperature
MIN.
−
−
−55
−55
MAX.
30
20
+150
+100
UNIT
V
mA
°C
°C
ELECTRICAL CHARACTERISTICS
T_j = 25 °C; unless otherwise specified.
SYMBOL
PARAMETER
I_R
reverse current
r_s
diode series resistance
C_d
diode capacitance
BB909A
BB909B
C--C---_d^-d---₍^-(-₂^-1-₈^--V-_V^--)-₎^-
∆_{--C--C---d--d-}
capacitance ratio
capacitance matching
CONDITIONS
V_R = 28 V; see Fig.3
V_R = 28 V; T_j = 85 °C; see Fig.3
f = 100 MHz; note 1
see Figs 2 and 4
V_R = 1 V; f = 1 MHz
V_R = 3 V; f = 1 MHz
V_R = 28 V; f = 1 MHz
V_R = 1 V; f = 1 MHz
V_R = 3 V; f = 1 MHz
V_R = 28 V; f = 1 MHz
f = 1 MHz
V_R = 1 to 28 V
Note
1. V_R is the value at which C_d = 30 pF.
MIN. TYP. MAX. UNIT
−
−
10 nA
−
−
200 nA
−
−
0.9 Ω
31 −
−
23
2.6 −
33.5 −
−
25
2.8 −
12 −
−
pF
−
pF
3
pF
−
pF
−
pF
3.2 pF
15
−
−
2.5 %
1996 May 03
2