TI TPIC8101DWR

传感器接口串行串行

Overview

The TPIC8101DWR is a dual-channel signal processing IC for detection of premature detonation in combustion engine. The two sensor channels are selectable through the SPI bus. The knock sensor typically provides an electrical signal to the amplifier inputs. The sensed signal is processed through a programmable band-pass filter to extract the frequency of interest (engine knock or ping signals). The band-pass filter eliminates any engine background noise associated with combustion. The engine background noise is typically low in amplitude compared to the predetonation noise.

The data from the A/D enables the system to analyze the amount of retard timing for the next spark ignition timing cycle. With the microprocessor closed-loop system, advancing and retarding the spark timing optimizes the load/RPM conditions for a particular engine (data stored in RAM).

Features

Tape & Reel (TR) Package
With 5V channels
operate temperature at the range of 20mA

Surface Mount Mounting Type

Applications

There are a lot of Texas Instruments
TPIC8101DWR applications of sensor and detector interfaces.

• Analog Signal Processing With Filter Characteristics
• Camshaft VRS Interfaces
• Crankshaft VRS Interfaces
• Vehicle Speed VRS Interfaces
• Automatic Lighting (Residential and Commercial)
• Automation of Doors
• Motion Triggered Events (Animal photography)
• Position sensor
• Level transmitter
• Proximity sensor