8-Channel, Low Jitter Ultrasound Transmit Beamformer with Programmable Duty-Cycle and High Resolutio - LM96570

LM96570 (ACTIVE)

8-Channel, Low Jitter Ultrasound Transmit Beamformer with Programmable Duty-Cycle and High Resolutio

Recommended alternative parts

  • LM96511  -  Ultrasound Analog Front End (AFE)
  • LM96530  -  High Voltage Transmit/Receive Switch
  • LM96550  -  High Voltage Ultrasound Transmit Pulser

Description

The LM96570 is an eight-channel monolithic beamformer for pulse generators in multi-channel medical ultrasound applications. It is well-suited for use with the LM965XX series chipset which offers a complete medical ultrasound solution targeted towards low-power, portable systems.

The LM96570 offers eight P and N output channels with individual delays of up to 102.4 µs operating at pulse rates of up to 80 MHz. A pulse sequence is launched on all channels simultaneously through a single firing signal. Advanced features include delay resolution down to 0.78 ns and programmable patterns of up to 64 pulses. Pulse patterns and delay settings are pre-programmed through a serial interface, thereby simplifying the timing requirements on the driving circuitry.

The LM96570 is packaged in a 32-pin WQFN.

Features

  • Full Control Over Selecting Beam Directions and Pulse Patterns by Programming Individual Channel Parameters
  • Outputs Interface Seamlessly with Positive and Negative Inputs on Octal High-Voltage Pulser ICs
  • Beamformer Timing Provides:
    • Delay Resolution of 0.78 ns
    • Delay Range of up to 102.4 μs
  • Pulse Patterns are Locally Generated with:
    • Sequences of up to 64 Pulses
    • Adjustable Pulse Widths
  • 2.5V to 3.3V CMOS Logic Interface

Key Specifications

  • I/O voltage 2.5 to 3.3 V
  • Core supply voltage 1.8 V
  • Output pulse rate 80 MHz
  • Reference frequency 40 (±5%) MHz
  • 1σ Output Jitter (@ 5MHz) 25 ps
  • Output Phase Noise (@ 5MHz, 1kHz offset) −116 dBc/Hz
  • Delay resolution 0.78 ns
  • Delay range 102.4 μs
  • Max. pattern length 64 pulses
  • Serial interface speed 80 Mbps
  • Total Power 0.063 Watts
  • Operating Temp. 0 to +70 °C

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