TIDUFC2 April   2025

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 High-Voltage Generator Circuit
      2. 2.2.2 Low-Voltage Switching Mode Power Supply
      3. 2.2.3 Sitara™ MCU AM2431 Reset and Power Rail Monitoring Circuit
      4. 2.2.4 Clock Generator
      5. 2.2.5 CMOS to LVDS Driver
      6. 2.2.6 Layout Guidance
    3. 2.3 Highlighted Products
      1. 2.3.1 TX7516
      2. 2.3.2 TMU9832
      3. 2.3.3 AM2431
  9. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
      1. 3.1.1 TIDA-010256 PCB Overview
      2. 3.1.2 TIDA-010256 Connector Settings
    2. 3.2 Software Requirements
    3. 3.3 Test Setup
    4. 3.4 Test Results
      1. 3.4.1 High-Voltage Power Supply Output Ripple
      2. 3.4.2 Output Waveform
      3. 3.4.3 Thermal Test
  10. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
    2. 4.2 Tools and Software
    3. 4.3 Documentation Support
    4. 4.4 Support Resources
    5. 4.5 Trademarks

1.1 Key System Specifications

Table 1-1 Key System Specifications
PARAMETERSPECIFICATIONSDETAILS
System input voltage (VIN)12V (Power source)
Switcher output voltage (positive)5.5VPower module, no external inductor needs
+5V Output5V, 800nVRMS, (10Hz–100kHz)
Switcher output voltage (negative)–5.5VPower module, inverting buck topology
–5V Output –5V, 16.48µVRMS
TX7516 Supply rails with low-noise LDOs+5V (800mA),
–5V (800mA)
1.8V (400mA)		Surge current (±5V) when floating low dropout (LDO) regulators are powered up. This table only shows the maximum surge current of the TX7516.
Switcher output voltage (digital IO)0.85V, 1.8V, 3.3V
High-voltage output Maximum ±80V(300mA),
Maximum ±40V(300mA)
SEPIC switch frequency150kHzCan switch to 100kHz
SEPIC output voltage ripple1% of the output voltage
Load resistor220Ω | 220pF
BF_CLK input200MHz
BeamformerYesOn-chip beamformer
Pulser output modeCW mode, B mode, elastography
TMUX9832 control mode Single-ended SPI with daisy chain
MCU boot modeQSPI, none-boot, universal asynchronous receiver-transmitter (UART)
SPI bandwidth50MHz maximum (SPI peripheral),
100MHz (PRU IO)