Condition: Used

This Keysight N4851B MIPI D-PHY 4-lane digital acquisition probe is offered complete with two E5385A High Density Probe Adapters, an E5381A Differential Flying Lead Set, and additional accessories as pictured. Firmware version 05.50 is the current release for this product.

Included in the sale:
• N4851B MIPI D-PHY 4 Lanes Digital Acquisition Probe
• 2x E5385A High Density Probe Adapters
• E5381A Differential Flying Lead Set
• Other accessories as pictured

The Keysight N4851B is a MIPI D-PHY 4-lane digital acquisition probe designed for state analysis of MIPI D-PHY compliant devices. It operates in conjunction with Keysight 16800 and 16900 Series logic analysers to provide the digital serial acquisition capabilities required to independently debug and test MIPI D-PHY components or integrate MIPI D-PHY based mobile designs.

The N4851B supports both the CSI-2 (Camera Serial Interface) and DSI (Display Serial Interface) protocols, enabling engineers to comprehensively characterise the behaviour of controllers as well as display or camera devices. Real-time acquisition of MIPI D-PHY traffic is displayed with hierarchical trace capabilities, tracking bus mode changes and bi-directional communication. An integrated image extractor provides bitmap viewing directly from the captured trace.

Key Specifications:
Maximum Acquisition Speed: 950 Mbps
Lane Support: 1 to 4 lanes
Voltage Level Support: Low power and high speed voltage
Protocol Support: DSI (Display Serial Interface), CSI-2 (Camera Serial Interface)
Logic Analyser Compatibility: Keysight 16800 or 16900 Series with 68 channels or more
Probing Interface: High impedance; supports E5381A differential flying lead and E5405A differential Pro Series soft touch probes
Firmware Version (current): 05.50
Lane Architecture: Clock lane plus up to 4 data lanes
Bus Status Indication: LED indicators for MIPI D-PHY bus status and error conditions
Protocol Customisation: Compatible with B4641A Protocol Development Kit
Stimulus Complement: N4861B MIPI D-PHY 3-lane Digital Stimulus Probe (sold separately)

Use Cases:
- Real-time debugging and validation of MIPI D-PHY interfaces in mobile and embedded camera/display designs
- Protocol-level analysis of CSI-2 camera pipelines and DSI display links
- Triggering on protocol violations, specific packet types, and individual bit fields
- Integration with pattern generators for combined stimulus and acquisition test setups

Keysight MIPI D-PHY Protocol Test Solutions Data Sheet (N4851B/N4861B) — Publication 5989-7921EN: Download PDF

Keysight N4851A/B, N4861A/B Probes for MIPI D-PHY Installation Guide: Download PDF

Keysight N4851A/B, N4861A/B Probes for MIPI D-PHY Design Guide: Download PDF

Keysight N4851A/B MIPI D-PHY Acquisition Probes User's Guide: Download PDF

Keysight E5385A 100-Pin Probe Installation Guide: Download PDF

Shipping & Returns Policy

Shipping Policy

• Processing Time: Orders are typically processed and dispatched within 1 business day.
• Shipping Methods: We offer Expedited Shipping to all destinations using UPS/DHL/Fedex/Royal Mail and other reputable carriers.
• Shipping Times: Mainland UK: 1-2 Business Days / Mainland Europe and USA: 2-3 Business Days / Rest of the World 5-7 Business Days.
• Shipping Costs: These are calculated at checkout based on the shipping method, destination and package dimensions.
• CUSTOMS AND TAXES: It is YOUR responsibility to liaise with customs in your country and ensure your package is cleared and any taxes are paid.
• Shipping Destinations: We ship worldwide.
• Tracking: Once your order is shipped, we will provide you with a tracking number via email.
• Insurance: All shipments are insured. In case of damage, please contact us via email within 48 hours of receiving the product with photographic evidence, please also ensure a report is logged with the delivery driver.

Returns Policy

• Return Period: In the event of an item being received which is 'not as specified', you can return your purchase within 14 days of delivery.
• Condition of Items: Items must be returned unused and in their original packaging.
• Return Method: All returns must be notified in writing to hello@ttinstruments.com, the email should accompany the order number, date and reason for return and must be within 14 days of delivery.
• Restocking Fees: A restocking fee of up-to 20% is applicable for items returned for any reason other than 'not as specified'.
• Refund Method: Refunds are processed to the original method of payment within 5 business days of receiving the return.
• Exchanges: We do not offer exchanges. It will either be a replacement or a refund.
• Return Shipping Costs: Return shipping costs will be borne by the customer unless the item is 'not as specified', in this case we will arrange for the return by way of a prepaid shipping label.