• 8-Channel transmitter, each channel includes:
  • 5-level pulser with on-chip beamforming
  • Active T/R switch
  • Integrated floating supplies
• 5-Level Pulser supports:
  • Maximum output voltage: ±100V
  • Minimum output voltage: ±1V
  • Maximum output current: 2A
  • Support 4A output current mode
  • True return to zero to discharge to ground
  • Second harmonic of –45dBc at 5MHz
  • –3dB Bandwidth with 220Ω || 240pF load
    • –20MHz for a ±100V supply
    • 35MHz for a ±100V supply in 4A
  • Integrated jitter: 100fs from 100Hz to 20kHz
  • CW mode close-in phase noise: –154dBc/Hz at 1kHz offset for 5MHz signal
• Active T/R switch with:
  • Turn ON resistance: 8Ω
  • Turn ON and OFF time: 300ns
  • Channel based T/R switch on and off controls
• On-chip beamformer for pulser with:
  • Channel based T/R switch on and off controls
  • Delay resolution: Half beamformer clock period, minimum 1.56ns
  • Maximum delay: 2¹⁴ beamformer clock period
  • Per channel 960 × 32 bits memory to store waveform and delay values.
• High-speed (400MHz maximum), 2-lane LVDS serial programming interface
  • Very low programming time: < 500ns for delay profile update
  • 32-bit Checksum feature to detect wrong SPI writes
• Internal temperature sensor and automatic thermal shutdown
• No specific power sequencing requirement
• Error flag register to detect multiple faulty condition
• Integrated passives for the floating supplies and bias voltages
• Small package: FCCSP-196 (12mm × 12mm) with 0.8mm pitch

• Ultrasound pulser imaging system
• Piezoelectric driver

The TX08D is a transmitter solution for ultrasound imaging systems. The device supports eight channels with each channel consisting of pulser transmit/receive (T/R) switches.