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 I
R
(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 T
amb
= 25 C
PART
CAPACITANCE pF
V
R
=0.5V, f=1MHz
Min
ZV950V2
ZV952V2
ZV953V2
ZMDC953(DUAL)
9.5
19
45
45
CAPACITANCE pF
CAPACITANCE
RATIO C
0.5
/ C
2.5
V
R
=1.5V, f=1MHz
f=1MHz
Min
6.3
12.7
30
30
Max
7.8
15.7
37
37
Min
2.0
2.0
2.0
2.0
250
250
200
250
Minimum Q
V
R
=0.5V
f=50MHz
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
Reverse voltage
Forward current
Power dissipation at T
amb
= 25 C SOD523
Power dissipation at T
amb
= 25 C SOT323
SYMBOL
V
R
I
F
P
tot
P
tot
MAX
12
100
250
300
UNIT
V
mA
mW
mW
ELECTRICAL CHARACTERISTICS at Tamb = 25°C
PARAMETER
Reverse breakdown voltage
Reverse voltage leakage
CONDITIONS
I
R
= 10uA
V
R
= 8V
MIN.
12
0.010
20
TYP.
MAX.
UNIT
V
nA
ISSUE 2 - MAY 2002
2
950 series
TYPICAL CHARACTERISTICS
100
1.4
R
S
Series Resistance( )
T
j
= 25°C
ZV950V2
C
J
Capacitance (pF)
1.2
1.0
0.8
0.6
0.4
0.2
0.0
10
100
ZV952V2
ZV953V2
ZMDC953
10
ZV953V2
ZMDC953
ZV952V2
T
j
= 25°C
f = 1MHz
ZV950V2
1
0.1
V
R
Reverse Voltage (V)
1
10
1000
Frequency (MHz)
Capacitance v Reverse Voltage
1.08
1000
T
j
= 85°C
T
j
= 55°C
Series Resistance v Frequency
T
j
= -55°C to +85°C
f = 1MHz
Normalised Capacitance
1.06
1.04
1.02
1.00
0.98
0.96
0.94
0.92
0
800
DC
J
/T (ppm/°C)
5
6
600
400
200
0
0
1
2
3
4
5
6
T
j
= 25°C
T
j
= -15°C
T
j
= -55°C
1
V
R
Reverse Voltage (V)
2
3
4
V
R
Reverse Voltage (V)
Normalised Capacitance v Voltage
1000
C
J
Temperature Coefficient v V
R
I
R
Reverse Leakage (pA)
+85°C
100
+55°C
10
+25°C
1
0
2
4
6
8
10
12
V
R
Reverse Voltage (V)
Leakage v Reverse Voltage
ISSUE 2 - MAY 2002
3
950 series
ORDER CODES AND PART MARKING
SOD523
SOT323
ORDER CODE
PART
MARK
ORDER CODE
PART
MARK
ZV950V2TA
ZV952V2TA
ZV953V2TA
50
52
53
ZMDC953TA
FSD273TA
FSD273TA
FSD273TA
54
55
56
57
Band A
Band B
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 depend-
ent.
TAPE AND REEL INFORMATION
REEL CODE
TA
REEL SIZE
7 inch (180mm)
TAPE WIDTH
8mm
QUANTITY PER REEL
3000
ISSUE 2 - MAY 2002
4
950 series
SOD523 PACKAGE DIMENSIONS
MILLIMETRES
MIN.
A
A1
A2
b1
c
D
E
E1
L
L1
1
0.000
0.600
0.160
0.080
0.700
1.500
1.100
0.200
0.170
4
MAX
0.800
0.100
0.800
0.300
0.220
0.900
1.700
1.300
0.400
0.230
10
SOT323 PACKAGE DIMENSIONS
DIM
Millimetres
MIN
MAX
2.2
1.35
1.0
0.4
0.25
1.4
0.1
2.2
0.70
Inches
MIN
0.071
0.045
0.031
0.008
0.004
0.047
-
0.079
0.023
MAX
0.087
0.053
0.039
0.016
0.01
0.055
0.004
0.087
0.028
A
B
C
D
F
G
K
L
N
1.8
1.15
0.8
0.2
0.1
1.2
-
2.0
0.60
ISSUE 2 - MAY 2002
5
