BB914...
Silicon Variable Capacitance Diode
•
For FM radio tuner with extended
frequency band
•
High tuning ratio at low supply voltage (car radio)
•
Monolitic chip (common cathode)
for perfect dual diode tracking
•
Good linearity for C- V curve
•
High figure of merit
•
Pb-free (RoHS compliant) package
BB914
!
,
,
Type
BB914
Package
SOT23
Configuration
common cathode
L
S
(nH)
1.8
Marking
SM
Maximum Ratings
at
T
A
= 25°C, unless otherwise specified
Parameter
Diode reverse voltage
Peak reverse voltage
(
R
≥
5kΩ )
Forward current
Operating temperature range
Storage temperature
I
F
T
op
T
stg
50
-55 ... 125
-55 ... 150
mA
°C
Symbol
V
R
V
RM
Value
18
20
Unit
V
1
2011-06-15
BB914...
Electrical Characteristics
at
T
A
= 25°C, unless otherwise specified
Parameter
DC Characteristics
Reverse current
V
R
= 16 V
V
R
= 16 V,
T
A
= 85 °C
AC Characteristics
Diode capacitance
V
R
= 2 V,
f
= 1 MHz
V
R
= 8 V,
f
= 1 MHz
C
T
Symbol
min.
I
R
-
-
Values
typ.
max.
Unit
nA
-
-
20
200
pF
42.5
17.6
43.75
18.7
2.34
-
0.28
45
19.75
2.42
1.5
-
%
Ω
Capacitance ratio
V
R
= 2 V,
V
R
= 8 V,
f
= 1 MHz
C
T2
/
C
T8
∆C
T
/
C
T
r
S
2.28
-
-
Capacitance matching
1)
V
R
= 2 V,
V
R
= 8 V,
f
= 1 MHz
Series resistance
V
R
= 2 V,
f
= 100 MHz
1
For
details please refer to Application Note 047.
2
2011-06-15
BB914...
Edition 2009-11-16
Published by
Infineon Technologies AG
81726 Munich, Germany
2009 Infineon Technologies AG
All Rights Reserved.
Legal Disclaimer
The information given in this document shall in no event be regarded as a guarantee
of conditions or characteristics. With respect to any examples or hints given herein,
any typical values stated herein and/or any information regarding the application of
the device, Infineon Technologies hereby disclaims any and all warranties and
liabilities of any kind, including without limitation, warranties of non-infringement of
intellectual property rights of any third party.
Information
For further information on technology, delivery terms and conditions and prices,
please contact the nearest Infineon Technologies Office (<www.infineon.com>).
Warnings
Due to technical requirements, components may contain dangerous substances.
For information on the types in question, please contact the nearest Infineon
Technologies Office.
Infineon Technologies components may be used in life-support devices or systems
only with the express written approval of Infineon Technologies, if a failure of such
components can reasonably be expected to cause the failure of that life-support
device or system or to affect the safety or effectiveness of that device or system.
Life support devices or systems are intended to be implanted in the human body or
to support and/or maintain and sustain and/or protect human life. If they fail, it is
reasonable to assume that the health of the user or other persons may be
endangered.
5
2011-06-15
Industrial Control Electronics
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