Engine Knock Signal Processor Evaluation Board


The HIP9011EVAL1Z evaluation board is use to evaluate the HIP9011 engine knock signal processor. The HIP9011 is used to provide a method of detecting premature detonation often referred to as "Knock or Ping" in internal combustion engines.

The HIP9011 can select between one of two sensors, if needed for accurate monitoring or for "V" type engines. Internal control via the SPI bus is fast enough to switch sensors between each firing cycle. A programmable bandpass filter processes the signal from either of the sensor inputs. The bandpass filter can be selected to optimize the extraction the engine knock or ping signals from the engine background noise. Further single processing is obtained by full wave rectification of the filtered signal and applying it to an integrator whose output voltage level is proportional to the knock signal amplitude. The chip is under microprocessor control via a SPI interface bus.

Key Features (HIP9011)

  • Two sensor inputs
  • Microprocessor programmable
  • Accurate and stable filter elements
  • Digitally programmable gain
  • Digitally programmable time constants
  • Digitally programmable filter characteristics
  • On-chip crystal oscillator
  • Programmable frequency divider
  • External clock frequencies up to 24MHz


  • Engine knock detector processor
  • Analog signal processing where controllable filter characteristics are required

HIP9011EVAL1Z Engine Knock Signal Processor Eval Board

HIP9011EVAL1Z Engine Knock Signal Processor
Evaluation Board

Related Products


Tool Information

Tools Orderable Part Number (s) Production Status Manufacturer Suggested Single Tool Price
Description Distributor Stock Distributors Distributor Purchase Buy Direct
HIP9011EVAL1Z Mass Production Renesas $275.00 1 1 Digi-Key -
2 Mouser
HIP6521EVAL1 Mass Production Renesas $313.00 1 0 Call -

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Disclaimer: THIS MATERIAL IS PROVIDED “AS-IS” FOR EVALUATION PURPOSES ONLY. RENESAS ELECTRONICS CORPORATION AND ITS SUBSIDIARIES (collectively, “Renesas”) DISCLAIM ALL WARRANTIES, INCLUDING WITHOUT LIMITATION, FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY. Renesas provides evaluation platforms and design proposals to help our customers to develop products. However, factors beyond Renesas' control, including without limitation, component variations, temperature changes and PCB layout, could significantly affect the product performance. It is the user’s responsibility to verify the actual circuit performance.