Multi-Channel JESD204B 15 GHz Clocking Reference Design for DSO, Radar and 5G Wireless Testers

(ACTIVE) TIDA-01021

Description & Features

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Key Document

Description

High speed multi-channel applications require precise clocking solutions capable of managing channel-to-channel skew in order to achieve optimal system SNR, SFDR, and ENOB. This reference design is capable of supporting two high speed channels on separate boards by utilizing TI’s LMX2594 wideband PLL with integrated VCOs to generate a 10 MHz to 15 GHz clock and SYSREF for JESD204B interfaces. The 10 KHz offset phase noise is < -104 dBc/Hz for a 15 GHz clock frequency.  By using TI’s ADC12DJ3200 high speed converter EVMs, a board-to-board clock skew of <10ps is achieved and a SNR of 49.6 dB with a 5.25 GHz input signal. All key design theories are described, guiding users through the part selection process and design optimization.  Finally, schematic, board layout, hardware testing, and results are also presented.

Features
  • Up to 15GHz sample clock generation
  • Multi-channel JESD204B compliant clock solution
  • Low phase noise clocking for RF sampling ADC/DAC
  • Configurable phase synchronization to achieve low skew in multi-channel system
  • Supports TI’s high-speed converter and capture cards (ADC12DJ3200EVM, TSW14J56 / TSW14J57)

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




TI Devices (15)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ADC12DJ3200  12-Bit, Dual 3.2-GSPS or Single 6.4-GSPS, RF-Sampling Analog-to-Digital Converter (ADC)  Analog-to-Digital Converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
CSD15571Q2  20-V N-Channel NexFET™ Power MOSFET  Power MOSFET  Sample & Buy Not Available
DS90LV028AQ-Q1  Automotive LVDS Dual Differential Line Receiver  LVDS/M-LVDS/PECL  Sample & Buy Not Available
LMK00304  3.1-GHz Differential Clock Buffer/Level Translator  Clock Buffers  Sample & Buy View Design Kits & Evaluation Modules
LMK04828  Ultra Low Jitter Synthesizer and Jitter Cleaner  Clock Jitter Cleaners  Sample & Buy View Design Kits & Evaluation Modules
LMK61E2  Ultra-Low Jitter Fully Programmable Oscillator, Integrated EEPROM, +/-50ppm  Clock and Timing  Sample & Buy View Design Kits & Evaluation Modules
LMX2594  15 GHz Wideband PLLatinum™ RF Synthesizer with Phase Synchronization and JESD204B support  Clock and Timing  Sample & Buy View Design Kits & Evaluation Modules
SN74CBTLV3257  Low-Voltage 4-Bit 1-Of-2 FET Multiplexer/Demultiplexer  Switches and Multiplexers  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G08  Single 2-Input Positive-AND Gate  Logic  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G125  Single Bus Buffer Gate With 3-State Outputs  Logic  Sample & Buy View Design Kits & Evaluation Modules
TLV702  300mA, Low IQ, Low-Dropout Regulator for Portables  Linear Regulator (LDO)  Sample & Buy View Design Kits & Evaluation Modules
TPS25925  5V, 5A, 30mΩ eFuse with Adjustable +/-15% Accurate Current Limit  Protection, Monitoring and Hot Swap  Sample & Buy View Design Kits & Evaluation Modules
TPS54318  2.95V to 6V Input, 3A Synchronous Step-Down SWIFT™ Converter  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS7A47  36V, 1A, 4.17μVRMS, RF Low-Dropout (LDO) Voltage Regulator  Linear Regulator (LDO)  Sample & Buy View Design Kits & Evaluation Modules
TPS7A8300  2A, Low-Dropout Voltage Regulator for High-Speed Communication Systems  Linear Regulator (LDO)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (3)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 2105 14 Jun 2017 1,450
PDF 8067 23 May 2017 2,015
PDF 6670 11 Jan 2016 1,977
Selection guides (1)
Title Abstract Type Size (KB) Date Views
PDF 5321 02 May 2017 5,422
Design files (12)
Title Abstract Type Size (KB) Date Views
PDF 696 06 Nov 2017 523
PDF 4389 06 Nov 2017 227
ZIP 2080 06 Nov 2017 88
ZIP 7976 06 Nov 2017 244
PDF 44 06 Nov 2017 198
PDF 644 06 Nov 2017 150
ZIP 6503 05 Jun 2017 62
ZIP 7800 05 Jun 2017 319
PDF 6790 05 Jun 2017 279
PDF 964 05 Jun 2017 189
PDF 84 05 Jun 2017 246
PDF 1124 05 Jun 2017 1,025
Related Tools & Software

Design Kits & Evaluation Modules (2)

Name Part Number Tool Type
ADC12DJ3200 12-Bit, Dual 3.2-GSPS or Single 6.4-GSPS, RF-Sampling ADC Evaluation Module  ADC12DJ3200EVM  Evaluation Modules & Boards 
Data Capture / Pattern Generator: Data Converter EVMs With 8 JESD204B Lanes From 0.6-12.5Gbps  TSW14J56EVM  Evaluation Modules & Boards 

Software (1)




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