BB814...
Silicon Variable Capacitance Diodes
•
For FM radio tuners with extended
frequency band
•
High tuning ratio at low supply voltage (car radio)
•
Monolithic chip (common cathode) for perfect
dual diode tracking
•
Coded capacitance groups and group matching
available
•
Pb-free (RoHS compliant) package
BB814
!
,
,
Type
BB814
Package
SOT23
Configuration
common cathode
L
S
(nH)
1.8
Marking
SH1/2*
*For differences see next page Capacitance groups
Maximum Ratings
at
T
A
= 25°C, unless otherwise specified
Parameter
Diode reverse voltage
Peak reverse voltage-
Forward current
Operating temperature range
Storage temperature
Symbol
V
R
V
RM
I
F
T
op
T
stg
Value
18
20
50
-55 ... 125
-55 ... 150
mA
°C
Unit
V
1
2011-06-15
BB814...
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
= 60 °C
AC Characteristics
Symbol
min.
I
R
-
-
Values
typ.
max.
Unit
nA
-
-
20
200
pF
43
19.1
44.75
20.8
2.15
-
0.18
200
46.5
22.7
2.25
3
-
-
%
Ω
Diode capacitance
1)
V
R
= 2 V,
f
= 1 MHz
V
R
= 8 V,
f
= 1 MHz
C
T
Capacitance ratio
V
R
= 2 V,
V
R
= 8 V,
f
= 1 MHz
C
T2
/
C
T8
∆C
T
/
C
T
r
S
Q
2.05
-
-
-
Capacitance matching
2)
V
R
= 2 V,
V
R
= 8 V,
f
= 1 MHz
Series resistance
V
R
= 2 V,
f
= 100 MHz
Q factor
f
= 100 MHz,
V
R
= 2 V
1
Capacitance
C
T
/groups
C
2V
C
2V
C
8V
C
8V
2
For
groups at 2V and 8V, coded 1; 2
1
2
43pF
45pF
19.1pF
44.5pF
46.5pF
19.75pF
min
max
min
max
21.95pF 22.7pF
details please refer to Application Note 047.
2
2011-06-15
BB814...
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
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