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Engine Knock Signal Processor

Package Information

CAD Model: View CAD Model
Pkg. Type: SOICW
Pkg. Code: MGY
Lead Count (#): 20
Pkg. Dimensions (mm): 12.85 x 7.52 x 0.00
Pitch (mm): 1.27

Environmental & Export Classifications

Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
ECCN (US) EAR99
HTS (US) 8542.39.0090
RoHS (HIP9011ABZT) Download

Product Attributes

Lead Count (#) 20
Carrier Type Reel
Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range (°C) -40 to +105°C
Adj. Analog Gain 0.111 - 2
Automotive Qual. No
Function Signal Processor
Input Type Differential
Interface SPI
Length (mm) 12.9
MOQ 1000
Pitch (mm) 1.3
Pkg. Dimensions (mm) 12.9 x 7.5 x 0.00
Pkg. Type SOICW
Qualification Level Standard
Sample Rate Max (KHz) 24000
Supply Voltage (V) 4.5 - 5.5
Width (mm) 7.5

Description

The HIP9011 is used to provide a method of detecting premature detonation often referred to as Knock or Ping in internal combustion engines. The IC is shown in the Simplified Block Diagram. The chip 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.