VF230C
Crystal Oscillators LVPECL/LVDS 3.3V
5X7 mm Surface Mount
750 KHz to 800 MHz
Features
High speed – Low jitter LVPECL or LVDS output with
tristate
Small SMD package (5X7 mm)
Stability options from +/-20ppm to +/-100ppm
Commercial or industrial temperature range
Rugged, hermetic package for automated assembly
Description
Valpey Fisher’s VF230 surface mount oscillators
provide waveforms for clocking LVPECL and LVDS
circuits. The 5X7mm footprint package provides the
performance of larger oscillators with a level of
board space reduction achieved. ASIC technology is
used to accomplish size reduction and enhance
performance and reliability. Low jitter output
signals are generated. The wide range of frequencies
offered, many stability options, and industrial
temperature range availability, make this model the
solution for many applications. A tristate function is
included to allow for easy automated testing of
assemblies. Tape and reel packaging is standard.
Typical Applications
Telecom/networking systems that require low jitter clocks
DSL,
Gigabit Ethernet,
Fibre channel
optical networking
CONNECTIONS
PIN 1
Pin 2
PIN 3
PIN 4
PIN 5
PIN 6
Tristate
N/C
Ground
Output 1: Q
Output 2: Q
+V
DD
Valpey Fisher Corporation
•
75 South Street, Hopkinton, MA 01748
•
Tel. 1-800-XTALREP, 508-435-6831
•
FAX 508 4355289
1
Rev 1.0 11/04
VF230C
Crystal Oscillators LVPECL/LVDS 3.3V
5X7 mm Surface Mount
750 KHz to 800 MHz
ELECTRICAL SPECIFICATIONS
Frequency Range
750 KHz to 800 MHz
100, 50, 25 or 20 ppm
Frequency Stability
Includes calibration at 25°C, operating
temperature, change of input voltage,
change of load, shock and vibration
MIN
3.15
ENVIRONMENTAL SPECIFICATIONS
Temperature
*Operating
0° to 70°C
Storage
-55°to +125°C
Shock-
1000 Gs, 0.35 ms, ½ sine wave, 3 shocks in each plane
Vibration-
10-2000 Hz of .06” d.a. or 20 Gs, whichever is less
Humidity-
Resistant to 85° R.H. at 85°C
MECHANICAL SPECIFICATIONS
Leak-
MIL STD 883, Method 1014, Condition A1
Case-
Ceramic with hermetic resistance-welded metal lid
Pads-
Solderable gold over nickel
Marking-
Epoxy ink or laser engraved
Resistance to solvents-
MIL STD 202, Method 215
*Operating -40 to +85°C also available.
Input Voltage, V
DD
Jitter
Period jitter RMS
19.44MHz
77.76MHz
155.52MHz
622.08MHz
Integrated jitter RMS
12 KHz to 20 MHz @ 155.52MHz
TYP
3.3
5
8
9
10
3
50
50
MAX
3.45
UNITS
volts
ps
ps
ps
ps
5
60
60
ps
percent
percent
Symmetry at (V
DD
-1.3) V
DC
(PECL)
40
40
At (1.25 V
DC
) (LVDS)
MARKING SPECIFICATION
The format for the marking is:
Valpey-Fisher
Oscillator
Model Code (XX) Date Code
(YY)
Aging
First year
After first year
Tristate
Input Requirements for Pin 1:
“1”: On-Pin 1 may float or 2.8V min
“0”: Tristate-Pin 1 requires 0.4V max
Typical Phase Noise (dBc/Hz)
Oscillator Frequency
19.44MHz
106.25MHz
155.52MHz
622.08MHz
10Hz
-60
-60
-60
-60
100Hz
-90
-90
-90
-90
3
1
ppm
ppm/yr
VF230CXXYY
750.00
Pin 1
1KHz
-112
-112
-112
-109
10KHz
-140
-127
-125
-110
100KHz
-140
-125
-123
-109
Frequency
Valpey Fisher Corporation
•
75 South Street, Hopkinton, MA 01748
•
Tel. 1-800-XTALREP, 508-435-6831
•
FAX 508 4355289
2
Rev 1.0 11/04
VF230C
Crystal Oscillators LVPECL/LVDS 3.3V
5X7 mm Surface Mount
750 KHz to 800 MHz
PECL Output Models
Electrical Specifications
.
RL = 50
Ω
to (V
DD
- 2V)
(see figure)
Output High Voltage, V
OH
Output Low Voltage, V
OL
Input Current, PECL
0.75 – 24 MHz
24 – 160 MHz
160 – 800 MHz
Switching Characteristics
Clock Rise Time, tr
@20/80%
Clock Fall Time, tf
@80/20%
LVDS Output Models
Electrical Specifications
MIN
RL = 100
Ω
(see figure)
Output Differential Voltage, V
OD
247
Output High Voltage, V
OH
Output Low Voltage, V
OL
0.9
Offset Voltage, V
OS
1.125
Input Current, LVDS
0.75 – 24 MHz
24 – 96 MHz
96 – 800 MHz
Switching Characteristics
Differential Clock Rise Time, tr
Differential Clock Fall Time, tf
0.3
0.3
TYP
355
1.4
1.1
1.2
MAX
454
1.6
1.375
25
45
80
0.4
0.4
UNITS
mV
V
V
V
mA
mA
mA
ns
ns
MIN
TYP
MAX
UNITS
V
V
mA
mA
mA
VDD-1.025
VDD-1.620
25
65
100
0.3
0.3
0.35
0.35
ns
ns
HOW TO ORDER
For part Number, put package type before model number, and add frequency in MHz, for example:
VF230C
A
A
T
A
Output Logic
A=45/55%LVDS
B=40/60%LVDS
C=45/55%PECL
D=40/60%PECL
125
Frequency
M
M=MHZ
K=KHz
Frequency Stability
A=+/-100ppm
B=+/-50ppm
C=+/-25ppm
D=+/-20ppm
Temperature Range Tristate
A=0 to 70°C
T=Tristate
B=-40 to +85°C
N=Non Tristate
Valpey Fisher Corporation
•
75 South Street, Hopkinton, MA 01748
•
Tel. 1-800-XTALREP, 508-435-6831
•
FAX 508 4355289
3
Rev 1.0 11/04
