Reference design synchronizing data converter DDC and NCO features for multi-channel RF systems
TIDA-010122
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Key Document

Description

This reference design provides the solution for synchronization design challenges associated with emerging 5G adapted applications like massive multiple input multiple output (mMIMO), phase array RADAR and communication payload. The typical RF front end contains antenna, low noise amplifier (LNA), mixer , local oscillator (LO) in analog domain and analog to digital converter, numerical controlled oscillator (NCO) and digital down converter (DDC) in digital domain. To achieve overall system synchronization these digital blocks need to be synchronize with system clock. This reference design uses ADC12DJ3200 data converter, achieve less than 5-ps channel-to-channel skew across multiple receiver with deterministic latency by synchronizing on chip NCO with SYNC~ and uses noiseless aperture delay adjustment (tAD Adjust) feature to further reduce skew. This design also provides a very low phase noise clocking solution based the LMX2594 wide band PLL and the LMK04828 synthesizer and jitter cleaner.

Features
  • 4-channel, 3.2 GSPS, 6-GHz high-speed analog front end
  • On-chip NCO synchronization allows synchronization across multiple ADCs using SYNC~
  • Multi-channel JESD204B complaint clock
  • JESD204B supporting 8, 16, or 32 JESD lanes and data rates up to 12.8 Gbps per lane
  • Companion power reference design with a >85% efficiency at 12-V input

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TI Devices (23)

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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  20V, N ch NexFET MOSFET™, single SON2x2, 19.2mOhm  MOSFETs  Sample & Buy Not Available
DS90LT012AQ-Q1  Automotive LVDS Differential Line Receiver  Interface  Sample & Buy View Design Kits & Evaluation Modules
DS90LV028AQ-Q1  Automotive LVDS dual differential line receiver  Interface  Sample & Buy View Design Kits & Evaluation Modules
LM95233  ±2°C Dual Remote and Local Temperature Sensor with TruTherm Technology and SMBus Interface  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules
LMC6762  Dual Micro-Power Rail-to-Rail Input CMOS Comparator with Push-Pull Output  Amplifiers  Sample & Buy Not Available
LMH5401  8-GHz Ultra wideband fully differential amplifier  RF amplifiers  Sample & Buy View Design Kits & Evaluation Modules
LMH6401  4.5 GHz ultra wideband digital variable gain amplifier  RF amplifiers  Sample & Buy View Design Kits & Evaluation Modules
LMK00304  3.1-GHz Differential Clock Buffer/Level Translator  Clocks & timing  Sample & Buy View Design Kits & Evaluation Modules
LMK04828  Ultra-low jitter synthesizer & jitter cleaner  Clocks & timing  Sample & Buy View Design Kits & Evaluation Modules
LMK61E2  Ultra-Low Jitter Fully Programmable Oscillator, Integrated EEPROM, +/-50ppm  Clocks & timing  Sample & Buy View Design Kits & Evaluation Modules
LMX2594  15 GHz Wideband PLLatinum™ RF Synthesizer with Phase Synchronization and JESD204B support  RF & microwave  Sample & Buy View Design Kits & Evaluation Modules
SN74AVC4T774  4-bit dual-supply bus transceiver with configurable voltage-level shifting and 3-state outputs  Voltage level translators  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G08  Single 2-Input Positive-AND Gate  Gate  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G125  Single Bus Buffer Gate With 3-State Outputs  Buffer/driver  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC2G53  5-V, 2:1 (SPDT), 1-channel general-purpose analog switch (available in the NanoFree™ package)  Switches & multiplexers  Sample & Buy View Design Kits & Evaluation Modules
TCA9534A  Remote 8-Bit I2C and Low-Power I/O Expander With Interrupt Output and Configuration Registers  I2C ICs  Sample & Buy View Design Kits & Evaluation Modules
TLV702  300-mA, high-PSRR, low-IQ, low-dropout voltage regulator with enable  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS25926  4.5-V to 13.8-V, 30mΩ, 2-5A eFuse  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS7A33  1-A, high-PSRR, negative, adjustable low-dropout voltage regulator with enable  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A8300  2-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good with high-accuracy  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A84  3-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good with high-accuracy  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS82130  3-A 17V Step-down Converter Module with Integrated Inductor  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ADC12DJ3200 Download
CSD15571Q2 WSON (DQK)| 6 Download
DS90LT012AQ-Q1 Download Download
DS90LV028AQ-Q1 Download Download
Download -
LM95233 Download Download
LMC6762 Download Download
LMH5401 Download Download
LMK00304 Download Download
LMK04828 Download Download
LMK61E2 Download Download
LMX2594 Download Download
SN74AVC4T774 Download Download
Download Download
Download Download
SN74LVC1G08 Download Download
Download Download
Download
Download Download
Download -
Download Download
Download Download
SN74LVC1G125 Download Download
Download Download
Download
Download Download
Download -
Download Download
Download Download
SN74LVC2G53 Download Download
Download Download
Download -
TCA9534A Download
Download
TLV702 Download Download
Download Download
TPS25926 Download
TPS7A33 Download Download
Download Download
TPS7A8300 Download
Download -
TPS7A84 Download Download
TPS82130 uSiP (SIL)| 8 Download Download

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Technical documentation

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Datasheet (1)
Title Type Size (KB) Date
PDF 3388 21 Feb 2019
Application note (3)
Title Type Size (KB) Date
PDF 1536 16 Aug 2017
PDF 146 28 Apr 2015
PDF 140 28 Nov 2001
User guide (1)
Title Type Size (KB) Date
PDF 11439 13 Jun 2019
Design files (6)
Title Type Size (KB) Date
ZIP 13521 13 Jun 2019
ZIP 74323 13 Jun 2019
PDF 28658 13 Jun 2019
PDF 2983 13 Jun 2019
PDF 240 13 Jun 2019
PDF 3461 13 Jun 2019
Related Tools & Software

Reference Designs (1)

Hardware development (2)


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