Data Sheets
Keysight Technologies
N6462A and N6462B DDR4/LPDDR4
Compliance Test Software
N6462A works with Infiniium 90000A, V-Series, and Z-Series oscilloscopes
N6462B works with Infiniium 9000A and S-Series oscilloscopes
Data Sheet
Introduction
The Keysight Technologies, Inc. DDR4 and LPDDR4 compliance test application provides a fast and easy way to test, debug and characterize your DDR4 and LPDDR4 designs. The tests performed by the software are based on the JEDEC1 JESD79-4 DDR4 SDRAM and JESD209-4 LPDDR4 Specification. In addition, the application features Custom mode, which covers crucial measurements such as eye-diagram analysis, mask testing, ringing and other tests that are not covered in the specifications but are critical for characterizing DDR4 and LPDDR4 devices. The test application offers a user-friendly setup wizard and a comprehensive report that includes margin analysis.
DDR4 is an evolutionary upgrade to DDR3 memory systems. DDR4 technology enables higher bandwidth for data transfer than DDR3 and allows you to build devices with even smaller chip footprints that consume less power and generate less heat. DDR4 achieves these advances with enhanced fine ball-grid array (FBGA) packaging, on-die termination, self-calibration and automatic self-refresh for improved control of signal integrity.
LPDDR4 DRAM (with data rates up to 4266 MT/s) is 50 percent faster than the industry’s current highest performance LPDDR3, which operates at 2133 MT/s. The new LPDDR4 also operates at lower electrical power than LPDDR3, which helps reduce power consumption in the mobile applications.
Signal integrity is crucial for memory system interoperability. Reference clock jitter measurements help you ensure that jitter is well within the specifications, which is the key to reliable and interoperable modular memory systems. Electrical and timing characteristics of other signals are also critical, to ensure the memory system functions correctly and stays error free. The new data jitter measurements enable characterization of jitter to determine the data valid window.
The addition of the DDR4 debug tool helps memory designers perform pre- and post-compliance testing with saved oscilloscope waveform traces. The tool allows for navigation capability with measurement markers to help navigate to problem areas for further testing.
The DDR4 and LPDDR4 compliance test application is compatible with Keysight Infiniium digital storage oscilloscopes.
Comprehensive Test Coverage
With the DDR4 and LPDDR4 compliance test application, you can use the same oscilloscope you use for everyday debugging to perform automated testing and margin analysis based on the JEDEC electrical and timing specifications. The application automatically configures the oscilloscope for each test and provides informative results. It includes margin analysis indicating how close your device comes to passing or failing the test for each specification. Some of the difficulties in performing the tests are connecting to the target device, configuring the oscilloscope, performing the tests and analyzing the measured results.
The DDR4 and LPDDR4 compliance test application does most of this work for you. If you discover a problem with your device, the Custom mode feature in the test application and debug tools in the oscilloscope are available to aid in root-cause analysis.
Features
The compliance test application offers several features to simplify the validation of your designs:
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