BB212 [NXP]
AM variable capacitance double diode; AM变容双二极管
| 型号： | BB212 |
| 厂家： | 
NXP |
| 描述： | AM variable capacitance double diode |
| 文件： | 总6页 (文件大小：51K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DISCRETE SEMICONDUCTORS
DATA SHEET
lfpage
BB212
AM variable capacitance double
diode
1996 May 03
Product specification
Supersedes data of April 1992
File under Discrete Semiconductors, SC01
Philips Semiconductors
Product specification
AM variable capacitance double diode
BB212
FEATURES
PINNING
• Leaded plastic package
• C8: 19 pF; ratio: 29.
PIN
DESCRIPTION
1
2
3
anode (a1)
common cathode
anode (a2)
APPLICATIONS
• Electronic tuning in AM radio
applications
• VCO.
handbook, halfpage
1
2
3
1
3
DESCRIPTION
The BB212 is a variable capacitance
double diode with a common cathode,
fabricated in planar technology, and
encapsulated in the TO-92 variant
leaded plastic package.
MAM223
2
Fig.1 Simplified outline (TO-92 variant) and symbol.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL PARAMETER
Per diode
MIN.
MAX.
UNIT
VR
IF
continuous reverse voltage
12
V
−
−
100
mA
°C
continuous forward current
storage temperature
Tstg
Tj
+100
+85
−55
−55
operating junction temperature
°C
1996 May 03
2
Philips Semiconductors
Product specification
AM variable capacitance double diode
BB212
ELECTRICAL CHARACTERISTICS
Tj = 25 °C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Per diode
IR
reverse current
VR = 10 V; see Fig.3
−
−
−
−
nA
nA
Ω
50
VR = 10 V; Tj = 85 °C; see Fig.3
f = 500 MHz; note 1
see Figs 2 and 4
300
2.5
rs
diode series resistance
diode capacitance
Cd
VR = 0.5 V; f = 1 MHz
VR = 3 V; f = 1 MHz
VR = 5.5 V; f = 1 MHz
VR = 8 V; f = 1 MHz
f = 1 MHz
−
−
−
−
−
620
280
90
500
140
40
pF
pF
pF
pF
−
22
capacitance ratio
22.5
−
Cd (0.5V)
---------------------
Cd (8V)
Note
1. VR is the value at which Cd = 500 pF.
MATCHING PROPERTIES
ADDITIONAL TOLERANCE (see Fig.5)
The capacitance of the two diodes in their common
package may differ within certain limits. The total, relative
capacitance difference between the two diodes in one
package may be found in Fig.5. The anode a1 or a2 with
the higher capacitance at VR = 3 V, is identified by a white
dot.
In the range of VR = 0.5 V to 8 V the following additional
tolerances are valid.
C1
C1
S =
VR
–
0.5 V
------
C2
------
C2
S < 2% for VR = 0.5 to 3 V
S < 4% for VR = 3 to 5.5 V
S < 6% for VR = 5.5 to 8 V.
BASIC TOLERANCE
The relative deviation of the capacitance value at
VR = 0.5 V is maximum 3.5%.
C1 is the capacitance of a1 when a1 > a2.
C1 is the capacitance of a2 when a2 > a1.
C1 (0.5V) – C2 (0.5 V)
k =
= <3.5%
------------------------------------------------------------
C2 (0.5 V)
1996 May 03
3
Philips Semiconductors
Product specification
AM variable capacitance double diode
BB212
GRAPHICAL DATA
MGC814
750
C
d
(pF)
500
250
0
10
−1
1
10
V
(V)
R
f = 1 MHz.
Fig.2 Diode capacitance as a function of reverse voltage; typical values.
MLC815
MGC809
3
10
3
10
handbook, halfpage
handbook, halfpage
I
TC
d
R
(nA)
−1
(K
)
4
2
10
10
5
10
10
0
1
2
10
1
10
10
20
40
60
80
100
V
(V)
o
R
T ( C)
j
Fig.4 Temperature coefficient of diode
Fig.3 Reverse current as a function of junction
temperature; maximum values.
capacitance as a function of reverse
voltage; typical values.
1996 May 03
4
Philips Semiconductors
Product specification
AM variable capacitance double diode
BB212
MGC811
20
handbook, halfpage
S
(%)
16
12
8
4
0
0
2
4
6
8
10
V
(V)
R
Fig.5 Capacitance matching as a function of
reverse voltage; typical values.
1996 May 03
5
Philips Semiconductors
Product specification
AM variable capacitance double diode
BB212
PACKAGE OUTLINE
0.40
min
4.2 max
5.2 max
12.7 min
1.6
0.48
0.40
1
2
3
4.8
max
2.54
0.66
0.56
(1)
MBC014 - 1
2.0 max
Dimensions in mm.
(1) Terminal dimensions within this zone are uncontrolled to allow for flow of plastic and terminal irregularities.
Fig.6 TO-92 variant.
DEFINITIONS
Data sheet status
Objective specification
Preliminary specification
Product specification
This data sheet contains target or goal specifications for product development.
This data sheet contains preliminary data; supplementary data may be published later.
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
1996 May 03
6
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