SBAU392A July   2022  – January 2023 AFE7950 , TRF1208

 

  1.   TRF1208-AFE7950-EVM Evaluation Module User's Guide
  2.   Trademarks
  3. 1EVM Overview
    1. 1.1 Hardware
      1. 1.1.1 Recommended Test Environment
      2. 1.1.2 Required Hardware
    2. 1.2 Required Software
      1. 1.2.1 Software Installation Sequence
      2. 1.2.2 Software Installation Checks
    3. 1.3 Signal Chain of the EVM Board
  4. 2Hardware Setup (TSW14J56 Used as an Example)
    1. 2.1 Power Supply Setup
    2. 2.2 TRF1208-AFE7950-EVM and TSW14J56 EVM Connections
    3. 2.3 RF Test Equipment Setup
  5. 3Latte Overview
    1. 3.1 Latte User Interface
    2. 3.2 Useful Latte Short-Cuts
  6. 4TRF1208-AFE7950-EVM Automatic Configuration
    1. 4.1 Steps to Start Automatic Configuration
    2. 4.2 TXDAC Evaluation
    3. 4.3 RXADC and FBADC Evaluation
  7. 5Status Check and Troubleshooting Guidelines
    1. 5.1 TRF1208-AFE7950-EVM Status Indicators
    2. 5.2 TSW14J56 EVM
  8. 6TRF1208-AFE7950-EVM Manual Configuration
    1. 6.1 TSW14J5x DAC Pattern Setup
    2. 6.2 Connect Latte to Board
    3. 6.3 Compile Libraries
    4. 6.4 Program TRF1208-AFE7950-EVM
    5. 6.5 Modify Configuration
      1. 6.5.1 Data Rate and JESD Parameters
      2. 6.5.2 Data Converter Clocks Settings
  9. 7Setup the TSW14J5x With the HSDC Pro
    1. 7.1 DAC Pattern Setup and Send
    2. 7.2 DAC Synchronization Check
    3. 7.3 ADC Data Capture
    4. 7.4 ADC Synchronization Check
  10. 8Revision History

1 EVM Overview

The TRF1208-AFE7950-EVM includes a clocking and power solution, and runs off a single 5.5-V supply. As Figure 1-1 shows, the RF inputs and outputs using SMA connectors are on the top side of the EVM. A reference clock (for example, 10 MHz) to lock the onboard voltage-controlled crystal oscillator (VCXO) with the LMK04828, PLL-1 can be provided to the connector named LMK CLKIN (SMA J15). (1)

SMA J13 (REF_CLK_HIGH) or SMA J14 (REF_CLK_LOW) can be used to feed an external reference clock to lock the PLLs in the AFE79xx. The USB connector and the 5.5-V connector are on the right side of the board.

Figure 1-1 TRF1208-AFE7950-EVM Top View

Figure 1-2 shows the bottom view of the TRF1208-AFE7950-EVM.

Figure 1-2 TRF1208-AFE7950-EVM Bottom View

The capture card that is used with the TRF1208-AFE7950-EVM is typically the TSW14J56 or TSW14J57. The TSW14J56 supports a SerDes speed of up to 12.5 Gbps and the TSW14J57 goes as high as 15 Gbps. The choice of the TSW14J56 or TSW14J57 EVM depends on the AFE79xx JESD204 configuration and the associated SerDes rate.

1. Typically, lab equipment has a 10-MHz oscillator output to synchronize multiple lab systems. The onboard LMK04828 can accept the 10 MHz from external lab equipment to ensure synchronization and coherency of the data capture and generation to the TRF1208-AFE7950-EVM.