Multi-channel signal-generator ASIC for acoustic holograms

Rui Song, Grace Richard, Christopher You Yee Cheng, Lijun Teng, Yongqiang Qiu, Martin Philip John Lavery, Susan Trolier-Mckinstry, Sandy Cochran, Ian Underwood

Research output: Contribution to journalArticle

Abstract

A complementary metal-oxide-semiconductor (CMOS) application-specific integrated circuit (ASIC) has been developed to generate arbitrary, dynamic phase patterns for acoustic hologram applications. An experimental prototype has been fabricated to demonstrate phase shaping. It comprises a cascadable 1 × 9 array of identical, independently controlled signal generators implemented in a 0.35-μm minimum-feature-size process. It can individually control the phase of a square wave on each of the nine output pads. The footprint of the integrated circuit is 1175 × 88 μm2. A 128-MHz clock frequency is used to produce outputs at 8 MHz with a phase resolution of 16 levels (4 bits) per channel. A 6 × 6 air-coupled matrix array ultrasonic transducer was built and driven by four ASICs, with the help of commercial buffer amplifiers, for the application demonstration. Acoustic pressure mapping and particle manipulation were performed. In addition, a 2 × 2 array piezoelectric micromachined ultrasonic transducer (PMUT) was connected and driven by four output channels of a single ASIC, demonstrating the flexibility of the ASIC to work with different transducers and the potential for direct integration of CMOS and PMUTs.

Original languageEnglish (US)
Article number8822495
Pages (from-to)49-56
Number of pages8
JournalIEEE transactions on ultrasonics, ferroelectrics, and frequency control
Volume67
Issue number1
DOIs
StatePublished - Jan 2020

Fingerprint

signal generators
Signal generators
application specific integrated circuits
Holograms
Application specific integrated circuits
Acoustics
transducers
Ultrasonic transducers
acoustics
output
CMOS
ultrasonics
Buffer amplifiers
Piezoelectric transducers
square waves
footprints
Metals
clocks
integrated circuits
Integrated circuits

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

Cite this

Song, R., Richard, G., Cheng, C. Y. Y., Teng, L., Qiu, Y., Lavery, M. P. J., ... Underwood, I. (2020). Multi-channel signal-generator ASIC for acoustic holograms. IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 67(1), 49-56. [8822495]. https://doi.org/10.1109/TUFFC.2019.2938917
Song, Rui ; Richard, Grace ; Cheng, Christopher You Yee ; Teng, Lijun ; Qiu, Yongqiang ; Lavery, Martin Philip John ; Trolier-Mckinstry, Susan ; Cochran, Sandy ; Underwood, Ian. / Multi-channel signal-generator ASIC for acoustic holograms. In: IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 2020 ; Vol. 67, No. 1. pp. 49-56.
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Song, R, Richard, G, Cheng, CYY, Teng, L, Qiu, Y, Lavery, MPJ, Trolier-Mckinstry, S, Cochran, S & Underwood, I 2020, 'Multi-channel signal-generator ASIC for acoustic holograms', IEEE transactions on ultrasonics, ferroelectrics, and frequency control, vol. 67, no. 1, 8822495, pp. 49-56. https://doi.org/10.1109/TUFFC.2019.2938917

Multi-channel signal-generator ASIC for acoustic holograms. / Song, Rui; Richard, Grace; Cheng, Christopher You Yee; Teng, Lijun; Qiu, Yongqiang; Lavery, Martin Philip John; Trolier-Mckinstry, Susan; Cochran, Sandy; Underwood, Ian.

In: IEEE transactions on ultrasonics, ferroelectrics, and frequency control, Vol. 67, No. 1, 8822495, 01.2020, p. 49-56.

Research output: Contribution to journalArticle

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AU - Lavery, Martin Philip John

AU - Trolier-Mckinstry, Susan

AU - Cochran, Sandy

AU - Underwood, Ian

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