Keysight Technologies N1078A-264
Optical/Electrical Clock Recovery. 50 MBd to 64GBd
Rent or Lease • Buy Used From $83,647
Keysight Technologies - N1078A-264
N1078A Optical/Electrical Clock Recovery provides standards-compliant clock recovery capabilities for single-mode optical as well as electrical signals from 125 MBd up to 64 GBd PAM4 and NRZ
N1078A-264 Product Highlights
• 125 MBd to 64 GBd data rate range (continuous) on electrical and optical NRZ and PAM4 data signals
• Standards-compliant clock recovery (“Golden PLL”) with adjustable peaking and loop bandwidth to 20 MHz
• Lock onto degraded signals (“closed eyes”) using a built-in variable equalizer (Option EVA)
• Gain insight into root cause(s) for jitter using Jitter Spectrum Analysis (Option JSA)
• Perform compliant PLL bandwidth and peaking measurements using N1010300A FlexPLL Application software and N1081PLCA PCI Express PLL Test Application
Keysight Technologies & TRS-RenTelco
TRS-RenTelco is a proud partner of Keysight Technologies and offers a wide range of rental, purchase and leasing solutions designed specifically to meet the evolving needs of the electronic testing industry. Our close relationship with Keysight Technologies allows us to ensure we have the right Oscilloscopes solution for your job.
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Links to Additional Information
Keysight Technologies Products from TRS-RenTelco
- Configurations
- Resources
- FAQsAI
--, 264, JSA, S50
See Configuration Details
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S50
Internal Single-Mode Splitter (50% to optical output)
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264
Supported Input rates: 125 MBd to 64 GBd
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JSA
Jitter Spectrum Analysis and Clock Recovery Emulation
Standard Rental Accessories*
* Leased or Buy Used product accessories will be confirmed with quote.
-
Power cord Right Angle
Qty: 1 -
Cable Semi-Rigid SMA(m) - SMA(m) - On unit
Qty: 1 -
Connector Optical FC - PC
Qty: 2 -
Cable USB 2 m
Qty: 1 -
Jumper Patch Cord Singlemode SMF 28 1 m LG FC/PC
Qty: 1 -
Cover Front Protection for N1092A
Qty: 1 -
50 ohm SMA Terminator, male
Qty: 3
*This item has already been added to your cart. Check your cart for quantity and availability.
--, 264, EVA, JSA, SXT
See Configuration Details
-
JSA
Jitter Spectrum Analysis and Clock Recovery Emulation
-
264
Supported Input rates: 125 MBd to 64 GBd
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EVA
Equalizer, integrated, variable
-
SXT
External Splitter (supplied by user)
Standard Rental Accessories*
* Leased or Buy Used product accessories will be confirmed with quote.
-
Power cord Right Angle
Qty: 1 -
Cable Semi-Rigid SMA(m) - SMA(m) - On unit
Qty: 1 -
Connector Optical FC - PC
Qty: 2 -
Cable USB 2 m
Qty: 1 -
Jumper Patch Cord Singlemode SMF 28 1 m LG FC/PC
Qty: 1 -
Cover Front Protection for N1092A
Qty: 1 -
50 ohm SMA Terminator, male
Qty: 3
*This item has already been added to your cart. Check your cart for quantity and availability.
Keysight Technologies N1078A-264 Spec Sheet
Content is AI-generated. Verify critical details with manufacturer-provided resources.
What data rate range does the N1078A-264 clock recovery support?
The N1078A-264 supports electrical and optical data rates from 125 MBd to 64 GBd, with characteristic performance extending to 65.6 GBd. It handles both NRZ and PAM4 signal types, making it suitable for testing next-generation transceivers for 400G Ethernet, 64 GFC, and other standards operating at 53 GBd and above.
Does the N1078A provide integrated optical splitting capability?
Yes, the N1078A is available with Option S50 which integrates a 50/50 single-mode optical splitter (nominal ratio). This design combines the splitter with an amplified optical-to-electrical converter inside the instrument, simplifying the test setup and improving ease-of-use. Alternatively, Option SXT omits the internal splitter so users can supply their own external splitter with a custom split ratio.
What is the minimum optical input power the N1078A needs to achieve lock?
For the N1078A with Option S50 at 1310 nm or 1550 nm, the minimum optical modulation amplitude (OMA) to achieve lock is 200 microWatts for rates up to 53.125 GBd, increasing to 400 microWatts for rates between 53.125 GBd and 59 GBd. Characteristic sensitivity is considerably better, reaching 60 microWatts at 10.3125 GBd and 80 microWatts at both 26.56 GBd and 53.125 GBd.
What is the jitter performance of the N1078A auxiliary clock output?
The N1078A auxiliary clock output delivers ultra-low intrinsic random jitter of less than 80 fs RMS (characteristic), with an output frequency range of 8 GHz to 16 GHz. This makes it an ideal reference source for precision timebase inputs on sampling oscilloscopes. The auxiliary clock output uses a single-ended, DC-coupled 50-ohm interface on a 2.92 mm female connector.
Can the N1078A recover clocks from PAM4 signals with closed eyes?
The N1078A with Option 264 supports clock recovery for NRZ and PAM4 signals at data rates up to 64 GBd. For recovering clocks from signals with closed eyes, the N1076B electrical clock recovery is recommended, as it includes integrated variable equalizers on both electrical inputs specifically designed to open closed eyes. The N1078A provides high-sensitivity clock recovery for optical and electrical signals with its low intrinsic random jitter of less than 100 fs RMS.
What loop bandwidth range does the N1078A clock recovery offer?
The N1078A provides a user-selectable PLL loop bandwidth from 0.015 to 20 MHz, with the actual available range depending on the baud rate. Loop bandwidth accuracy is plus or minus 30% (characteristic, NRZ). Up to 4 peaking settings are available depending on the selected loop bandwidth, enabling standards-compliant golden PLL operation for Ethernet, Fibre Channel, and OIF-CEI testing.
Does the N1078A support jitter spectrum analysis?
Yes, with optional JSA (jitter spectrum analysis), the N1078A integrates a step generator and a low-noise 14-bit ADC to characterize the PLL response in real-time. This enables FlexDCA to optimize random jitter measurement accuracy, emulate an ideal software clock recovery model, analyze jitter magnitude versus frequency, and perform band-limited TJ/DJ/RJ measurements with user-specified start and stop frequencies.
What wavelength range does the N1078A optical input support?
The N1078A optical input covers wavelengths from 1260 nm to 1620 nm in single-mode operation only, factory tested at 1310 nm and 1550 nm. The optical connector is FC/PC with 9/125 micrometer fiber. Maximum input power is 8 mW with Option S50 and 4 mW with Option SXT, with a characteristic return loss of 16 dB.
