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
950 series
ISSUE 2 - MAY 2002
1
SILICON LOW VOLTAGE HYPERABRUPT VARACTOR DIODES
950 series
ISSUE 2 - MAY 2002
2
PARAMETER
SYMBOL
MAX
UNIT
Reverse voltage
V
R
12
V
Forward current
I
F
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
ABSOLUTE MAXIMUM RATINGS
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Reverse breakdown voltage
I
R
= 10uA
12
V
Reverse voltage leakage
V
R
= 8V
0.010
20
nA
ELECTRICAL CHARACTERISTICS at Tamb = 25
C
PART
CAPACITANCE pF
V
R
=0.5V, f=1MHz
CAPACITANCE pF
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
250
ZV952V2
19
12.7
15.7
2.0
250
ZV953V2
45
30
37
2.0
200
ZMDC953(DUAL)
45
30
37
2.0
250
TUNING CHARACTERISTICS at T
amb
= 25 C
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
950 series
ISSUE 2 - MAY 2002
3
0.1
1
10
1
10
100
10
100
1000
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0
1
2
3
4
5
6
0.92
0.94
0.96
0.98
1.00
1.02
1.04
1.06
1.08
0
1
2
3
4
5
6
0
200
400
600
800
1000
0
2
4
6
8
10
12
1
10
100
1000
ZV953V2
ZMDC953
ZV952V2
Capacitance v Reverse Voltage
T
j
= 25C
f = 1MHz
ZV950V2
C
J
C
a
pa
c
i
t
a
nc
e
(
pF
)
V
R
Reverse Voltage (V)
ZMDC953
ZV952V2
ZV950V2
Series Resistance v Frequency
T
j
= 25C
ZV953V2
R
S
Se
r
i
e
s
Re
s
i
s
t
a
n
c
e
(
)
Frequency (MHz)
T
j
= -15C
T
j
= -55C
T
j
= 85C
Normalised Capacitance v Voltage
T
j
= 55C
T
j
= 25C
N
o
r
m
a
l
i
s
e
d
C
a
pa
c
i
t
a
nc
e
V
R
Reverse Voltage (V)
C
J
Temperature Coefficient v V
R
T
j
= -55C to +85C
f = 1MHz
D
C
J
/T
(
p
p
m
/
C
)
V
R
Reverse Voltage (V)
+85C
+55C
+25C
Leakage v Reverse Voltage
I
R
Re
v
e
r
s
e
L
e
a
k
a
g
e
(
p
A
)
V
R
Reverse Voltage (V)
TYPICAL CHARACTERISTICS
ORDER CODES AND PART MARKING
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.
950 series
ISSUE 2 - MAY 2002
4
SOT323
SOD523
ORDER CODE
PART
MARK
ORDER CODE
PART
MARK
ZV950V2TA
50
ZV952V2TA
52
ZV953V2TA
53
ZMDC953TA
54
FSD273TA
55
Band A
FSD273TA
56
Band B
FSD273TA
57
Band C
REEL CODE
REEL SIZE
TAPE WIDTH
QUANTITY PER REEL
TA
7 inch (180mm)
8mm
3000
TAPE AND REEL INFORMATION
950 series
ISSUE 2 - MAY 2002
5
SOT323 PACKAGE DIMENSIONS
DIM
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
MILLIMETRES
MIN.
MAX
A
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
SOD523 PACKAGE DIMENSIONS
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