N1076A Datasheet, PDF (5/19 Pages) Keysight Technologies – Electrical and Optical Clock Data Recovery Solutions

05 | Keysight | Electrical and Optical Clock Data Recovery Solutions - Data Sheet
N1077A Optical/Electrical Clock Recovery - Option SMS
The N1077A provides instrument-grade clock recovery on electrical and optical signals from
50 MBaud up to 32 GBaud (32.8 GBaud characteristic). Option SMS integrates an optical
splitter, hybrid coupler, and amplified O/E to minimize external cabling and losses, while
maximizing flexibility and ease-of-use. Just like the N1076A, the N1077A is controlled via a USB
connection to an 86100D DCA-X mainframe, or to a standalone PC running N1010A FlexDCA
software.
Figure 6. The N1077A recovers clock from both electrical and 850 to 1550 nm optical signals operating
from 50 MBaud to 32 GBaud.
Optical IN
(9 μm/125 μm)
Optical deck
(Option SMS)
SM splitter
50/50
Optical IOUT
(9 μm/125 μm)
Optical IN
(50 μm/125 μm)
Optical OUT
(50 μm/125 μm)
Electrical Data
OUT (2.92 mm)
Electrical
+
Data IN
–
Auxiliary clock
output (4 to 8 GHz)
Recovered
clock output
Hybrid coupler
70/30
70%
30%
Amp O/E
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
Limit
amp
Phase
detector
Sum
Amp
Amp
VIG
(VCO)
Loop bandwidth Ultra-low
adjustment
jitter clock
Frequency
divider
Figure 7. As this block diagram shows, the N1077A with Option SMS combines an integrated optical deck
(a splitter, bulk-optics coupler, and an amplified O/E) with an instrument-grade electrical clock recovery
circuit.
Accurate, convenient solution for recovering clock signals from high-speed 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
–– Provides an easy method for using the electrical clock recovery solution with optical
signals
–– Integrated splitter/coupler extracts a portion of the optical test signal using a built-in
coupler. Main optical signal returned to the front panel
–– Converts the tapped optical signal to an electrical signal using an amplified O/E for
greater sensitivity
–– Operates with both multimode and single-mode optical signals