BB179LX [NXP]
UHF variable capacitance diode; 超高频可变电容二极管
| 型号： | BB179LX |
| 厂家： | 
NXP |
| 描述： | UHF variable capacitance diode |
| 文件： | 总7页 (文件大小：49K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
BB179LX
UHF variable capacitance diode
Rev. 01 — 13 April 2006
Preliminary data sheet
1. Product profile
1.1 General description
The BB179LX is a planar technology variable capacitance diode in a SOD882T ultra small
leadless plastic SMD package. The excellent matching performance is achieved by gliding
matching and a Direct Matching Assembly (DMA) procedure.
1.2 Features
I Excellent linearity
I Excellent matching to 2 % DMA
I Ultra small leadless SMD package
I Cd(28V): 2.1 pF; Cd(1V) to Cd(28V) ratio typical 9
I Low series resistance
1.3 Applications
I Voltage Controlled Oscillators (VCO)
I Electronic tuning in VHF television tuners
2. Pinning information
Table 1.
Discrete pinning
Pin
1
Description
cathode
Simplified outline
Symbol
[1]
2
anode
1
2
sym008
Transparent
top view
[1] The marking bar indicates the cathode.
3. Ordering information
Table 2.
Ordering information
Type number Package
Name
Description
Version
BB179LX
-
leadless ultra small plastic package; 2 terminals;
SOD882T
body 1.0 × 0.6 × 0.4 mm
BB179LX
Philips Semiconductors
UHF variable capacitance diode
4. Marking
Table 3.
Marking
Type number
BB179LX
Marking code
L4
5. Limiting values
Table 4.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
Conditions
Min
-
Max
30
Unit
V
VR
IF
reverse voltage
forward current
storage temperature
junction temperature
-
20
mA
°C
Tstg
Tj
−55
−55
+150
+125
°C
6. Characteristics
Table 5.
Characteristics
Tj = 25 °C unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
IR
reverse current
see Figure 3
VR = 30 V
-
-
-
-
10
200
-
nA
nA
Ω
VR = 30 V; Tj = 85 °C
-
rs
diode series resistance
diode capacitance
f = 470 MHz; Cd = 30 pF; see Figure 2
0.65
Cd
see Figure 1 and Figure 4; f = 1 MHz;
VR = 1 V
VR = 28 V
f = 1 MHz
18.2
1.95
-
-
21.3
2.22
-
pF
pF
2.1
1.27
diode capacitance ratio
diode capacitance ratio
diode capacitance ratio
Cd(1V)
----------------
Cd(2V)
f = 1 MHz
f = 1 MHz
8.45
9
10.9
Cd(1V)
------------------
Cd(28V)
-
-
1.05
-
-
Cd(25V)
------------------
Cd(28V)
diode capacitance
matching
VR = 1 V to 28 V; in sequence of 5
diodes (gliding)
2
%
∆Cd
----------
Cd
BB179LX_1
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Preliminary data sheet
Rev. 01 — 13 April 2006
2 of 7
BB179LX
Philips Semiconductors
UHF variable capacitance diode
001aae543
001aae544
30
0.8
r
s
C
(pF)
d
(Ω)
0.6
20
0.4
0.2
0
10
0
10
−1
2
−1
2
1
10
10
10
1
10
10
V
R
(V)
V (V)
R
f = 1 MHz; Tj = 25 °C.
f = 470 MHz; Tj = 25 °C.
Fig 1. Diode capacitance as a function of reverse
voltage; typical values
Fig 2. Diode serial resistance as a function of reverse
voltage; typical values
001aae541
001aae542
3
−2
10
10
I
TC
Cd
R
−1
(nA)
(K
)
2
−3
10
10
−4
10
10
10
−5
1
−1
2
0
20
40
60
80
100
10
1
10
10
T (°C)
j
V
(V)
R
Tj = 25 °C to 85 °C.
Fig 3. Reverse current as function of junction
temperature; maximum values
Fig 4. Temperature coefficient of diode capacitance
as a function of reverse voltage; typical values
BB179LX_1
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Preliminary data sheet
Rev. 01 — 13 April 2006
3 of 7
BB179LX
Philips Semiconductors
UHF variable capacitance diode
7. Package outline
Leadless ultra small plastic package; 2 terminals; body 1 x 0.6 x 0.4 mm
SOD882T
(2×)
L
1
(2×)
M
w
A
1
2
b (2×)
(2×)
M
w
B
e
1
A
A
1
y
A
E
D
(1)
B
0
0.5
1 mm
scale
DIMENSIONS (mm are the original dimensions)
A
max
1
UNIT
mm
e
L
1
A
b
D
E
w
y
1
0.40
0.36
0.55 0.65 1.05
0.45 0.55 0.95
0.30
0.22
0.04
0.65
0.1
0.03
Note
1. The marking bar indicates the cathode
REFERENCES
JEDEC JEITA
OUTLINE
VERSION
EUROPEAN
PROJECTION
ISSUE DATE
IEC
04-12-14
06-04-12
SOD882T
Fig 5. Package outline SOD882T
BB179LX_1
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Preliminary data sheet
Rev. 01 — 13 April 2006
4 of 7
BB179LX
Philips Semiconductors
UHF variable capacitance diode
8. Revision history
Table 6.
Revision history
Document ID
Release date
Data sheet status
Change notice
Supersedes
BB179LX_1
20060413
Preliminary data sheet
-
-
BB179LX_1
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Preliminary data sheet
Rev. 01 — 13 April 2006
5 of 7
BB179LX
Philips Semiconductors
UHF variable capacitance diode
9. Legal information
9.1
Data sheet status
Document status[1][2]
Product status[3]
Definition
Objective [short] data sheet
Development
This document contains data from the objective specification for product development.
This document contains data from the preliminary specification.
This document contains the product specification.
Preliminary [short] data sheet Qualification
Product [short] data sheet Production
[1]
[2]
[3]
Please consult the most recently issued document before initiating or completing a design.
The term ‘short data sheet’ is explained in section “Definitions”.
The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status
information is available on the Internet at URL http://www.semiconductors.philips.com.
malfunction of a Philips Semiconductors product can reasonably be expected
to result in personal injury, death or severe property or environmental
9.2
Definitions
damage. Philips Semiconductors accepts no liability for inclusion and/or use
of Philips Semiconductors products in such equipment or applications and
therefore such inclusion and/or use is for the customer’s own risk.
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. Philips Semiconductors does not give any
representations or warranties as to the accuracy or completeness of
information included herein and shall have no liability for the consequences of
use of such information.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. Philips Semiconductors makes no
representation or warranty that such applications will be suitable for the
specified use without further testing or modification.
Short data sheet — A short data sheet is an extract from a full data sheet
with the same product type number(s) and title. A short data sheet is intended
for quick reference only and should not be relied upon to contain detailed and
full information. For detailed and full information see the relevant full data
sheet, which is available on request via the local Philips Semiconductors
sales office. In case of any inconsistency or conflict with the short data sheet,
the full data sheet shall prevail.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) may cause permanent
damage to the device. Limiting values are stress ratings only and operation of
the device at these or any other conditions above those given in the
Characteristics sections of this document is not implied. Exposure to limiting
values for extended periods may affect device reliability.
Terms and conditions of sale — Philips Semiconductors products are sold
subject to the general terms and conditions of commercial sale, as published
at http://www.semiconductors.philips.com/profile/terms, including those
pertaining to warranty, intellectual property rights infringement and limitation
of liability, unless explicitly otherwise agreed to in writing by Philips
9.3
Disclaimers
General — Information in this document is believed to be accurate and
reliable. However, Philips Semiconductors does not give any representations
or warranties, expressed or implied, as to the accuracy or completeness of
such information and shall have no liability for the consequences of use of
such information.
Semiconductors. In case of any inconsistency or conflict between information
in this document and such terms and conditions, the latter will prevail.
No offer to sell or license — Nothing in this document may be interpreted
or construed as an offer to sell products that is open for acceptance or the
grant, conveyance or implication of any license under any copyrights, patents
or other industrial or intellectual property rights.
Right to make changes — Philips Semiconductors reserves the right to
make changes to information published in this document, including without
limitation specifications and product descriptions, at any time and without
notice. This document supersedes and replaces all information supplied prior
to the publication hereof.
9.4
Trademarks
Suitability for use — Philips Semiconductors products are not designed,
authorized or warranted to be suitable for use in medical, military, aircraft,
space or life support equipment, nor in applications where failure or
Notice: All referenced brands, product names, service names and trademarks
are the property of their respective owners.
10. Contact information
For additional information, please visit: http://www.semiconductors.philips.com
For sales office addresses, send an email to: sales.addresses@www.semiconductors.philips.com
BB179LX_1
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Preliminary data sheet
Rev. 01 — 13 April 2006
6 of 7
BB179LX
Philips Semiconductors
UHF variable capacitance diode
11. Contents
1
Product profile . . . . . . . . . . . . . . . . . . . . . . . . . . 1
General description. . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1
1.2
1.3
2
3
4
5
6
7
8
Pinning information. . . . . . . . . . . . . . . . . . . . . . 1
Ordering information. . . . . . . . . . . . . . . . . . . . . 1
Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 2
Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . 2
Package outline . . . . . . . . . . . . . . . . . . . . . . . . . 4
Revision history. . . . . . . . . . . . . . . . . . . . . . . . . 5
9
Legal information. . . . . . . . . . . . . . . . . . . . . . . . 6
Data sheet status . . . . . . . . . . . . . . . . . . . . . . . 6
Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
9.1
9.2
9.3
9.4
10
11
Contact information. . . . . . . . . . . . . . . . . . . . . . 6
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© Koninklijke Philips Electronics N.V. 2006.
All rights reserved.
For more information, please visit: http://www.semiconductors.philips.com.
For sales office addresses, email to: sales.addresses@www.semiconductors.philips.com.
Date of release: 13 April 2006
Document identifier: BB179LX_1
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