Ultra-Low Jitter Oscillators

Optimized for Optical DSP Applications

Fiber optic cables are one of the most important conduits for transporting information through telecommunication networks. Information is transmitted by modulating the amplitude and the phase of light using a technique called coherent optical transmission. Optical signals are transmitted back and forth through the same fiberoptic cable by using optical transceivers at both ends of the cable. Optical transceivers are designed to allow both a transmitter and a receiver to cohabitate. This allows the creation of a full duplex link on a bidirectional fiber optic cable.

Digital Signal Processors (DSP) used inside optical transceivers at both ends of the fiber optic link, allow increased transmission speeds all the way to 800G, simpler circuitry and improved optical performance. Digital Signal Processors require high frequency, ultra-low jitter clock oscillators, VCXOs and VCSOs as a frequency reference.

Raltron has a complete line of oscillators designed to be compatible with or to serve as a reference design for some of the foremost optical DSPs used in optical transceivers.

Applications:

  • Simple Ethernet-only, adjustable 100G, 200G, 300G or 400G line enables reach/capacity optimization over various fiber links
  • Data center interconnect
  • Metro
  • Long haul supporting reaches beyond 120km
  • Optical Transceivers
  • Optical Engines
  • Active Optical Cables
  • Optical Instrumentation
  • RF over Fiber

Download English Application Guide   |   Download Chinese Application Guide

Ultra-low jitter oscillators for optical DSP applications.

MHz Clock Oscillators – Ultra Low Jitter

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Part Number
Datasheet
Image
Size (mm)
Output
Oscillation Mode
Supply Voltage (V)
Frequency (MHz)
Stability (ppm)
Jitter (fs)
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2.0 x 1.6
LVDS
Fundamental
1.8
156.25
±50
50
2.0 x 1.6
LVDS
Fundamental
2.5
156.25
±50
50
2.0 x 1.6
LVDS
Fundamental
3.3
156.25
±50
50
2.0 x 1.6
LVDS
Fundamental
2.25 ~ 3.63
156.25
±50
50
2.5 x 2.0
LVDS
3rd Overtone
2.5~3.3
156.25
±20
80 typ / 100 max
2.5 x 2.0
LVDS
3rd Overtone
1.8
156.25
±20
100 typ / 150 max
2.5 x 2.0
LVDS
3rd Overtone
2.5
156.25
±20
80 typ / 100 max
2.5 x 2.0
LVDS
3rd Overtone
2.5~3.3
156.25
±20
80 typ / 100 max
3.2 x 2.5
LVDS
Fundamental
3.3
156.257812
±25
100 max
3.2 x 2.5
LVDS
Fundamental
3.3
156.25
±25
100 max
3.2 x 2.5
LVDS
3rd Overtone
3.3
156.25
±50
110 max
3.2 x 2.5
LVDS
3rd Overtone
3.3
156.25
±25
100 max
3.2 x 2.5
LVPECL
3rd Overtone
2.5
156.25
±25
600 typ
3.2 x 2.5
LVPECL
3rd Overtone
2.5
156.25
±25
600 typ
3.2 x 2.5
LVDS
3rd Overtone
3.3
156.25
25
110 max

VCXOs – Ultra Low Jitter

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Part Number
Datasheet
Image
Size (mm)
Output
Supply Voltage (V)
Frequency (MHz)
Stability (ppm)
Jitter (fs)
Contact Us / Buy Now
9.0 x 14.0
LVPECL
3.3
100.00
±30
400 max / 600 max
3.2 x 2.5
LVDS
3.3
122.88
±25
90 typ / 300 max
5.0 x 3.2
LVDS
3.3
122.28
±25
90 typ / 300 max

Fast Delivery Programmable VCXOs – Ultra Low Jitter

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Part Number
Datasheet
Image
Size (mm)
Output
Supply Voltage (V)
Frequency (MHz)
Stability (ppm)
Jitter (fs)
Contact Us / Buy Now
3.2 x 2.5
LVDS
3.3
156.25
±50
600 typ
3.2 x 2.5
LVPECL
3.3
156.25
±50
600 typ

VCSOs – Ultra Low Jitter

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Part Number
Datasheet
Image
Size (mm)
Output
Supply Voltage (V)
Frequency (MHz)
Stability (ppm)
Jitter (fs)
Contact Us / Buy Now
5.0 x 7.0
LVPECL
3.3
800.00
±25
30 max