SURFACE MOUNT VCXO
VSMF SERIES: Multi-Frequency Voltage Control Crystal Oscillator with Low Jitter Output
10MHz – 1200MHz
PRODUCT DESCRIPTION
The VSMF clock series is a cutting edge family of High Frequency, Low Jitter Output, Multi-Frequency VCXO
based on an advanced digital PLL platform. The VSMF oscillators are available in a 7x5mm ceramic package
with output frequency from 10MHz to 1.2 GHz. The VSMF units are pre-programmed with up to 2 different output
frequencies, any of which are user selected. Such flexibility significantly reduces design cycle time and overall
cost. The VSMF oscillator design incorporates a low frequency crystal along with low Jitter frequency
synthesizer to provide a wide range of frequencies. The VSMF Clocks are available in LVCMOS, LVPECL and
LVDS outputs, making them suitable for a wide range of applications.
APPLICATION
SONET/SDH
FIBRE CHANNEL
10G,100G, GIGABIT ETHERNET
CLOCK / DATA RECOVERY
TEST AND MEASUREMENT
ELECTRICAL SPECIFICATION
PARAMETER
Frequency, nominal
Supply voltage, nom.
Supply current
SYMBOL
CONDITIONS
VALUE
UNIT
fO
VCC
Is
VOH
VOL
Vp-p
∆VOD
VOS
Up to 2 available output frequencies
10 -1200
2.5 or 3.3
35 ~ 45
MHz
V
mA
V
V
V
mV
V
V
%
ns
Typical (depending on output)
Vcc -1.4 ~ Vcc - 0.9
Vcc - 2.0 ~ Vcc - 1.7
0.6 ~ 1.0
LVPECL output levels
Output termination 50Ω ~ Vcc - 2.0V
LVPECL output voltage swing
LVDS differential output voltage
LVDS offset voltage, typical
LVCMOS / LVTTL output levels
Duty cycle
Rise/ fall time, max.
Absolute Pull Range
Control Voltage
Output termination 50Ω ~ Vcc - 2.0V
100Ω termination between outputs
350
1.25
VOH / VOL min/max
0.7Vcc / 0.3Vcc
40/60 or 45/55
0.6
±32,50,80,100
1.25, 1.65
0.3 ~ 0.9 (Vcc)
10
DC
tr / tf
APR
VC
Load = 10kΩ // 20pF
20% - 80% (VOL, VOH)
Min guaranteed freq. pull over ∆f/fc
Centered = ½ (Vcc)
Positive Slope; 10% Linearity, max
-3dB
ppm
V
V
Control Voltage Range
Modulation Bandwidth, min
RMS phase jitter
BW
J
KHz
Typical
0.8
ps
ppm
V
°C
°C
V
Overall freq. stability, max.1
Enable / Disable
∆f/fc
En / Dis
Ta
T(stg)
Vcc(abs)
Various available, specified when ordered
Min (logic 1) / Max (logic 0)
±20 ~ ±100.
0.7 (Vcc) / 0.3 (Vcc)
-40 ~ +85
Operating temperature
Storage temperature
Absolute voltage range
Absolute max
-45 ~ +100
Vcc ± 0.5
Notes
1See part numbering table
2 Contact factory
RALTRON 10651 N.W. 19t h St Miami, Florida 33172 U.S.A.
Phone: (305) 593-6033 Fax: (305) 594-3973 e-mail: sales@raltron.com web: http://www.raltron.com