950 series
SILICON LOW VOLTAGE HYPERABRUPT VARACTOR DIODES
ZV950V2, ZV952V2, ZV953V2, ZMDC953, FSD273
Device Description
A range of silicon varactor diodes for use in frequency control and
filtering. Featuring closely controlled CV characteristics, low voltage
operation and high Q. Low reverse current ensures very low phase
noise performance. These parts can be used with control voltages from
0.5V to 2.5V, making them ideal for 3 volt systems. Available in
miniature surface mount packages.
Features
• Close tolerance C-V characteristics
• Tuning from 0.5 to 2.5 Volts to suit 3 volt systems
• Low IR (typically 10pA)
• Excellent phase noise performance
• High Q at low voltage
• Miniature surface mount packages
• Band selection for DAB applications - FSD273
Applications
• VCXO and TCXO
• Wireless communications
• Pagers
• Mobile radio
• Digital Radio receivers
ISSUE 2 - MAY 2002
1
950 series
TUNING CHARACTERISTICS at Tamb = 25 C
PART
CAPACITANCE pF
CAPACITANCE pF
V R =0.5V, f=1MHz
V R =1.5V, f=1MHz
CAPACITANCE
RATIO C 0.5 / C 2.5
f=1MHz
Minimum Q
V R =0.5V
f=50MHz
Min
Min
Max
Min
ZV950V2
9.5
6.3
7.8
2.0
ZV952V2
19
12.7
15.7
2.0
250
ZV953V2
45
30
37
2.0
200
ZMDC953(DUAL)
45
30
37
2.0
250
250
ZMDC953 is available banded to tighter capacitance range. This product has the order code FSD273TA.
Measured at VR=1.5V the bands are
Band A = 30.0 to 32.5
Band B = 32.3 to 34.7
Band C = 34.5 to 37.0
Product is supplied in reels. A banded reel will only contain a single band. Shipments containing several reels
may have reels in different bands. It is not possible to supply a specific band as processing affects which bands
are available
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
MAX
Reverse voltage
VR
12
UNIT
V
Forward current
IF
100
mA
Power dissipation at T amb = 25⬚C SOD523
P tot
250
mW
Power dissipation at T amb = 25⬚C SOT323
P tot
300
mW
ELECTRICAL CHARACTERISTICS at Tamb = 25°C
PARAMETER
Reverse breakdown voltage
Reverse voltage leakage
CONDITIONS
MIN.
I R = 10uA
12
V R = 8V
TYP.
MAX.
UNIT
0.010
20
nA
V
ISSUE 2 - MAY 2002
2
950 series
TYPICAL CHARACTERISTICS
1.4
RS Series Resistance(⍀)
CJ Capacitance (pF)
100
ZV953V2
ZMDC953
10
ZV952V2
ZV950V2
Tj = 25°C
f = 1MHz
1
0.1
1
10
VR Reverse Voltage (V)
0.8
0.6
0.4
1000
Tj = -55°C to +85°C
f = 1MHz
800
Tj = 55°C
DCJ/T (ppm/°C)
Normalised Capacitance
100
1000
Tj = 25°C
0.98
0.96
Tj = -15°C
0.94
600
400
200
Tj = -55°C
1
2
3
4
VR Reverse Voltage (V)
5
0
0
6
+85°C
100
+55°C
10
+25°C
4
6
8
10
2
3
4
5
CJ Temperature Coefficient v VR
1000
2
1
VR Reverse Voltage (V)
Normalised Capacitance v Voltage
IR Reverse Leakage (pA)
ZMDC953
0.0
10
Series Resistance v Frequency
1.02
1
0
ZV953V2
0.2
Tj = 85°C
1.04
0.92
0
ZV952V2
Frequency (MHz)
1.08
1.00
ZV950V2
1.0
Capacitance v Reverse Voltage
1.06
Tj = 25°C
1.2
12
VR Reverse Voltage (V)
Leakage v Reverse Voltage
ISSUE 2 - MAY 2002
3
6
950 series
ORDER CODES AND PART MARKING
SOD523
SOT323
ORDER CODE
PART
MARK
ZV950V2TA
50
ZV952V2TA
52
ZV953V2TA
53
ORDER CODE
PART
MARK
ZMDC953TA
54
FSD273TA
55
Band A
FSD273TA
56
Band B
FSD273TA
57
Band C
FSD273 is a band selected version of the ZMDC953. Product is supplied in reels containing a
single capacitance band. Shipments of several reels may contain reels of different bands. It is
not possible for customers to specify a particular band, because availability is process dependent.
TAPE AND REEL INFORMATION
REEL CODE
REEL SIZE
TAPE WIDTH
QUANTITY PER REEL
TA
7 inch (180mm)
8mm
3000
ISSUE 2 - MAY 2002
4
950 series
SOD523 PACKAGE DIMENSIONS
MILLIMETRES
MIN.
MAX
A
ᎏ
0.800
A1
0.000
0.100
A2
0.600
0.800
b1
0.160
0.300
c
0.080
0.220
D
0.700
0.900
E
1.500
1.700
E1
1.100
1.300
L
0.200
0.400
L1
0.170
0.230
⍜1⬚
4⬚
10⬚
SOT323 PACKAGE DIMENSIONS
DIM
ISSUE 2 - MAY 2002
5
Millimetres
Inches
MIN
MAX
MIN
MAX
A
1.8
2.2
0.071
0.087
B
1.15
1.35
0.045
0.053
C
0.8
1.0
0.031
0.039
D
0.2
0.4
0.008
0.016
F
0.1
0.25
0.004
0.01
G
1.2
1.4
0.047
0.055
K
-
0.1
-
0.004
L
2.0
2.2
0.079
0.087
N
0.60
0.70
0.023
0.028
950 series
© Zetex plc 2001
Zetex plc
Fields New Road
Chadderton
Oldham, OL9 8NP
United Kingdom
Telephone (44) 161 622 4422
Fax: (44) 161 622 4420
Zetex GmbH
Streitfeldstraße 19
D-81673 München
Zetex Inc
700 Veterans Memorial Hwy
Hauppauge, NY11788
Germany
Telefon: (49) 89 45 49 49 0
Fax: (49) 89 45 49 49 49
USA
Telephone: (631) 360 2222
Fax: (631) 360 8222
Zetex (Asia) Ltd
3701-04 Metroplaza, Tower 1
Hing Fong Road
Kwai Fong
Hong Kong
Telephone: (852) 26100 611
Fax: (852) 24250 494
These offices are supported by agents and distributors in major countries world-wide.
This publication is issued to provide outline information only which (unless agreed by the Company in writing) may not be used, applied or reproduced
for any purpose or form part of any order or contract or be regarded as a representation relating to the products or services concerned. The Company
reserves the right to alter without notice the specification, design, price or conditions of supply of any product or service.
For the latest product information, log on to
www.zetex.com
ISSUE 2 - MAY 2002
6
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