Ultrasound ASIC by ICALPS Innovative Technology for Ultrasound Applications |
Dear , Lates ASIC Paltform by our partner ICAlps:
Ultrasound systems require both a high energy pulse generator coupled to an ultrasound transducer (MEMs based) for the transmit path (Tx) and a charge/current/voltage low noise amplifier, coupled with amplification or attenuation, filtering and analog to digital conversion
system, for the receive path (Rx).
Designing ASIC for Tx/Rx paths enables to reach the best performances with the transducer used (PMUT, CMUT, …). IC’Alps, integrated in Doliam group, has developed experience in designing such ASIC since 2018, handling the challenges of mixing high voltage and nominal
voltage for the Tx path and modeling the transducer with the amplification chain for the Rx path.
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Requirements
System partitioning: ASIC perimeter
• Outputting digital signals with embedded ADC and High Speed Link (previous slide)
• Outputting analog signals through analog buffer
• Analog micro beam forming for ‘data compression’ Transducer + ASIC
• For Transducer (cMUT/pMUT)
• Tx equivalent model: essentially a capacitor?
• Rx impedance model, including noise
• Center frequency, bandwidth System common understanding
• Noise coupling, parasitics
• Available clocks
• Available voltage (voltage, noise)
• Integration/packaging strategy
• Routing/decoupling capacitance for High Voltage
• Signal integrity (SERDES, micro beam forming) |
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