User’s Guide
DS560DF410EVM User's Guide
ABSTRACT
The DS560DF410 evaluation module (EVM) allows the user to quickly evaluate both the high-speed and
low-speed functionality of the DS560DF410 retimer. The DS560DF410 is a 4-channel multi-rate retimer with
integrated signal conditioning. The device supports retimed operation for PAM4 and NRZ data rates from 19.6
to 28.9 GBd. Integrated physical AC coupling capacitors (both TX and RX) eliminate the need for external
capacitors on the PCB. The DS560DF410 relies on two power supply voltages, 1.2 V and 1.8 V, managed on the
EVM through an onboard power tree.
The advanced equalization features of the DS560DF410 include a low-jitter 4-tap transmit finite impulse
response (FIR) filter, as well as receive adaptive continuous-time linear equalizer (CTLE), decision feedback
equalizer (DFE), and feed forward equalizer (FFE). This comprehensive equalization enables reach extension
for lossy interconnects and backplanes with multiple connectors as well as crosstalk. The integrated CDR
function is designed for front-port optical module applications to reset the jitter budget and retime the high-speed
serial data. The DS560DF410 implements a 2 × 2 cross-point on each channel pair, providing the host with both
lanes crossing and fanout options.
The DS560DF410 can be configured through the default I2C two-wire serial target mode, or the device can
configure itself from an external EEPROM by operating in controller mode. On-chip eye monitor and PRBS
generator and checker functions allow for comprehensive in-system diagnostics.
Table of Contents
1 Hardware Description and Setup.......................................................................................................................................... 3
1.1 Required Hardware............................................................................................................................................................ 3
1.2 General Hardware Test Setup Procedure.......................................................................................................................... 4
1.3 Hardware Configuration to Use External 25 MHz Oscillator for CAL_CLK_IN.................................................................. 5
2 Software Description..............................................................................................................................................................6
2.1 Software Installation Sequence..........................................................................................................................................6
2.2 Latte Functional Overview..................................................................................................................................................8
2.3 Useful Latte Short-Cuts......................................................................................................................................................9
2.4 DS560DF410EVM Initialization Through the Latte GUI..................................................................................................... 9
3 Related Documentation........................................................................................................................................................14
3.1 Supplemental Content......................................................................................................................................................14
4 EVM Cable Assemblies........................................................................................................................................................ 15
List of Figures
Figure 1-1. DS560DF410EVM Power, Low-Speed Communication, and High-Speed Signaling Connections...........................3
Figure 1-2. DS560DF410EVM Power Tree................................................................................................................................. 4
Figure 1-3. DS560DF410EVM Schematic Portion for CAL_CLK_IN Input Circuit.......................................................................5
Figure 2-1. Latte Installer Window to Start Process.................................................................................................................... 6
Figure 2-2. Latte Installer Window to Select the Destination Folder............................................................................................7
Figure 2-3. Latte Installation Window Prior to Launch of Install ..................................................................................................7
Figure 2-4. Latte GUI Overview................................................................................................................................................... 9
Figure 2-5. Latte GUI Snapshot Showing the User Configurable Retimer Parameters from the 1_bringupParams.py Script.. 10
Figure 2-6. Example Latte GUI Log Window Snapshot Showing ROM Patch Load and Channel Initialization.........................11
Figure 2-7. Latte GUI Snapshot Showing the usefulFunctions.py User Parameters.................................................................12
Figure 2-8. Vertical Eye Monitor GUI......................................................................................................................................... 14
Figure 4-1. Huber+Suhner MXP Cable Assemblies.................................................................................................................. 15
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SNLU324 – MARCH 2023
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DS560DF410EVM User's Guide 1
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