SURFACE MOUNT VCXO
RALTRON 10651 N.W. 19th 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
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
Notes
1See part numbering table
2 Contact factory
PARAMETER SYMBOL CONDITIONS VALUE UNIT
Frequency, nominal fO Up to 2 available output frequencies 10 -1200 MHz
Supply voltage, nom. VCC 2.5 or 3.3 V
Supply current Is Typical (depending on output) 35 ~ 45 mA
VOH Vcc -1.4 ~ Vcc - 0.9 V
LVPECL output levels VOL Output termination 50Ω ~ Vcc - 2.0V Vcc - 2.0 ~ Vcc - 1.7 V
LVPECL output voltage swing Vp-p Output termination 50Ω ~ Vcc - 2.0V 0.6 ~ 1.0 V
LVDS differential output voltage ∆VOD 350 mV
LVDS offset voltage, typical VOS 100Ω termination between outputs 1.25 V
LVCMOS / LVTTL output levels VOH / VOL min/max 0.7Vcc / 0.3Vcc V
Duty cycle DC Load = 10kΩ // 20pF 40/60 or 45/55 %
Rise/ fall time, max. tr / tf 20% - 80% (VOL, VOH) 0.6 ns
Absolute Pull Range APR Min guaranteed freq. pull over ∆f/fc ±32,50,80,100 ppm
Control Voltage VC Centered = ½ (Vcc) 1.25, 1.65 V
Control Voltage Range Positive Slope; 10% Linearity, max 0.3 ~ 0.9 (Vcc) V
Modulation Bandwidth, min BW -3dB 10 KHz
RMS phase jitter J Typical 0.8 ps
Overall freq. stability, max.1 ∆f/fc Various available, specified when ordered ±20 ~ ±100. ppm
Enable / Disable En / Dis Min (logic 1) / Max (logic 0) 0.7 (Vcc) / 0.3 (Vcc) V
Operating temperature Ta -40 ~ +85 °C
Storage temperature T(stg) Absolute max -45 ~ +100 °C
Absolute voltage range Vcc(abs) Vcc ± 0.5 V