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Ultrasonic Receiver

Ultrasonic Receiver . Preliminary Design Review Team F : Zach Garber, Jason Jonas, Scott Clausen, and Jonathan Gabler. Functional Decomposition. Interface Document. Tech Specs. Amplifier – Burr-Brown OPA228

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Ultrasonic Receiver

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  1. Ultrasonic Receiver Preliminary Design Review Team F : Zach Garber, Jason Jonas, Scott Clausen, and Jonathan Gabler

  2. Functional Decomposition

  3. Interface Document

  4. Tech Specs Amplifier – Burr-Brown OPA228 • Gain – The high open-loop gain of this amplifier is 160 dB and a minimum closed-loop gain of 5 V/V. • Gain Flatness – The gain flatness is ± 1 dB. • Bandwidth – The bandwidth of this amplifier is 33 MHz. • DC Voltage – This amplifier can operate within a range of ±2.5 V to  ±18 V input. • CMRR – The amplifier has a CMRR of 138 dB. Microwave Mixer – Philips SA602A • 3rd Order Intercept – The 3rd order intercept point is -13 dBm. • Noise Figure – The mixer has a noise figure of less than 4.7 dB. • Supply Voltage – This mixer operates on a supply voltage between 4.5 V to 8 V. • Bandwidth – The mixer can operate up to 200 MHz. Local Oscillator – Linear Technology LTC6903 • Carrier Frequency – The carrier frequency of this local oscillator is 1 kHz to 68 MHz. • Supply Voltage – This oscillator operates on a supply voltage between 2.7 V to 5.5 V. • Output Resistance – The oscillator has an output resistance of 45 Ω. • Output Voltage – The oscillator has an output voltage of 5.3 V. Low-pass Filter – Maxim MAX7400 • Kind – This filter is a low-pass filter. • Type – This type of filter is an 5th-order low-pass butterworth filter. • Input Power – The operating DC supply voltage is 5 V. • Corner Frequency – The filter has a corner frequency of up to 15 kHz. • Distortion – This filter has a total harmonic distortion plus noise of less than -82 dB. • Supply Voltage – The filter operates on a supply voltage of 4.5 V to 5.5 V.

  5. Testing and Evaluation • Each functional element first implemented on PCB • Connect whole system piece by piece

  6. Arduino • Program variable resistor • Program local oscillator • Generate a 35 kHz sine wave • GPS clock • Data storage • Output to USB

  7. Work Breakdown Structure

  8. Org Chart

  9. Risk Mitigation Signal compatibility • Read all datasheets carefully Arduino coding • Watch tutorials and start coding • Reach out for help from classmates with more experience Custom PCB • Start the acclimation process soon • Submit design early

  10. Questions?

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