V C X O
VF594-T
75 South Street, Hopkinton, MA 01748 800-982-5737 508-435-6831 Fax: 508-435-5289 www.valpeyfisher.com
86
VF594T
HCMOS/TTL Compatible Tristate VCXO
Surface Mount Ceramic Package
F E AT U R E S
Wide Frequency Range
Very Low Phase Jitter
at All Frequencies
Wide Pullability (1000ppm
available at some frequencies)
EMI Shielded
Standard Footprint
0.550" TYP.
(13,97mm)
0.385"
MAX.
(9,78mm)
0.200"
(5,08mm)
0.100"
(2,54mm)
0.130" TYP.
(3,302 mm)
0.185"
MAX.
(4,70mm)
0.350"
MAX.
(8,89mm)
VF594-T
44.736MHZ
BO1H
0.300"
(7,62 mm)
Mounting Center
1
2
3
6
5
4
1
Creating a Part Number
VF594
INPUT VOLTAGE
Code
Specification
L 3.3
Volt
5%
5.0
Volt
5% (std.)
OPERATIONAL TEMP. RANGE
Code
Specification
0
C to +70
C (std.)
1 -40
C to +85
C
ABSOLUTE PULL RANGE (ppm)
Code
Specification
50 ppm (std.)
XXXX up
to
1000 ppm
FREQUENCY STABILITY
Code
Specification
S
20 ppm
25 ppm
(std.)
DUTY CYCLE
Code
Specification
H
5%
10% (std.)
(customer to specify)
FREQ.
T
Example: VF594SHL-T-100-44.736MHz: Frequency Stability
20ppm,
Duty Cycle
5%, Input Voltage 3.3 Volt
5%, Operating Temperature
0
C to +70
C, Tristate Output, APR
100ppm, Frequency 44.736MHz.
Notes:
1. Tighter duty cycle available.
2. Frequency dependent. Shorter at higher frequencies.
3. 0V to 5V control voltage available for Vcc 3.3V. Nominal Control Voltage is 2.5V and Setability is 0.5V
in this case.
4. 10% and 5% available.
All specifications are subject to change without notice.
All dimensions are typical unless otherwise specified.
Parameter
Symb
Condition
Min
Typ
Max
Unit
Note
Input Break
Vcc
0.5
7.0
V
Down Voltage
Storage Temp.
Ts
55
+85
C
Control Voltage
Vc
1
9
V
Frequency
Range
F
1.54
160
MHz
Frequency
F/F
Vs. Temp., Vcc
25
ppm
Stability
Input Voltage
Vcc
4.75
5.00
5.25
V
Std.
3.15
3.30
3.45
LV Opt.
Input Current
Icc
No Load
12
mA
@20MHz
Load
Duty Cycle
@1.4V
40
50
60
%
1
Rise/Fall Time
Tr/Tf
20% to 80%
6
ns
2
Logic "1" Level
Voh
Max Load
0.9Vcc
Logic "0" Level
Vol
Max Load
0.1Vcc
Startup Time
Ts
2
10
ms
Phase Jitter
1
1
ps
fj>1KHz
Modulation BW
fm
@Vc = 2.5V
10
KHz
@3db
Input Impedance
fm<10KHz
50
KOhm
Control Voltage
Vc
Vcc = 5V
0.00
2.50
5.00
V
Vcc = 3.3V
0.00
1.65
3.30
3
Deviation Slope
Monotonic,
50
ppm/V Vcc = 5.0V
Positive
75
Vcc = 3.3V
Absolute APR
50
ppm
Pull Range
Tristate
Function
Linearity 20
%
4
Setability (Vc
Vc0
@25C, Fnom.
2.00
2.50
3.00
V
Vcc = 5.0V
for center freq)
1.20
1.65
2.10
Vcc = 3.3V
Operating
Temperature Range
0C to +70C (40C to +85C available)
Mechanical Shock
Per MILSTD202, Method 213, Cond. E
Thermal Shock
Per MILSTD883, Method 1011, Cond. A
Vibration
Per MILSTD883, Method 2007, Cond. A
Soldering Conditions
260C, for 10s, Max; 230C, for 90s, Max.
Hermetic Seal
Leak rate less than 5 x 10
8
atm.cc/s of helium
Pin Out
Pin #1Voltage Control
Pin #2Tristate Control
Pin #3Ground, Case
Pin #4Output
Pin #5N/C
Pin #6Vcc
10 TTL gates or 50pF MAX
AC coupled 50 Ohm termination recommended @ F>54 MHz
Absolute
Max. Ratings
Electrical
Environmental and Mechanical
Electrical
Connections
Input HIGH (>2.5V) or floating: ACTIVE
Input LOW (<0.5V): INFINITE IMPEDANCE
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