N1076A Datasheet, PDF (6/19 Pages) Keysight Technologies – Electrical and Optical Clock Data Recovery Solutions

06 | Keysight | Electrical and Optical Clock Data Recovery Solutions - Data Sheet
N1077A Optical/Electrical Clock Recovery - Option SXT
The N1077A provides instrument-grade clock recovery on electrical and optical signals from
50 MBaud up to 32 GBaud (32.8 GBaud characteristic). Option SXT provides a direct optical
connection from the instrument front panel to the amplified O/E, allowing users to provide
an external optical splitter that is optimized for their particular setup. For example, users can
supply an optical splitter with a 50/50, 20/80, or 10/90 split ratio depending on their setup.
Figure 8. The N1077A with Option SXT recovers a clock from both electrical and optical (850 to 1550 nm)
signals operating from 50 MBaud to 32 GBaud. Instead of an integrated optical splitter, Option SXT units
allow users to provide their own external optical splitters having a split ratio optimized for their particular
setup.
Optical deck
(Option SXT)
Electrical clock recovery
(refer to N1076A block diagram)
Electrical clock recovery
block diagram
Step
generator
ADC (for jitter
spectrum
analysis, JSA)
Peaking
adjustment
Front panel
divider
Optical IN
(50 μm/125 μm)
Electrical Data
(2.92 mm)
Electrical
+
Data IN
–
Auxiliary clock
output (4 to 8 GHz)
Recovered
clock output
Amp O/E
Limit
amp
Phase
detector
Sum
Amp
Amp
VIG
(VCO)
Loop bandwidth Ultra-low
adjustment
jitter clock
Frequency
divider
Figure 9. As this block diagram shows, the N1077A with Option SXT combines an integrated amplified O/E
with an instrument-grade electrical clock recovery circuit (user supplies an external optical splitter as
necessary).
Accurate and flexible solution for recovering clock signals from high-speed electrical and
optical communication signals
–– Recovers clock from data streams up to 32 GBaud (Option 232) and 16 GBaud (Option
216)
–– Supports both NRZ and PAM4 signal types
–– Allows users to provide their own external optical single-mode or multimode splitter/
coupler
–– Converts the optical signal to an electrical signal using an amplified O/E for greater
sensitivity
–– Operates with both multimode and single-mode optical signals