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CS1124 データシート(PDF) 1 Page - ON Semiconductor |
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1 / 8 page © Semiconductor Components Industries, LLC, 2006 February, 2006 − Rev. 8 1 Publication Order Number: CS1124/D CS1124 Dual Variable−Reluctance Sensor Interface IC The CS1124 is a monolithic integrated circuit designed primarily to condition signals used to monitor rotating parts. The CS1124 is a dual channel device. Each channel interfaces to a Variable Reluctance Sensor, and monitors the signal produced when a metal object is moved past that sensor. An output is generated that is a comparison of the input voltage and the voltage produced at the INAdj lead. The resulting square−wave is available at the OUT pin. When the DIAG pin is high, the reference voltage at INAdj is increased. This then requires a larger signal at the input to trip the comparator, and provides for a procedure to test for an open sensor. Features • Dual Channel Capability • Built−In Test Mode • On−Chip Input Voltage Clamping • Works from 5.0 V Supply • Accurate Built−In Hysteresis • Pb−Free Packages are Available Figure 1. Block Diagram OUT1 To mP VCC VCC VCC VCC VCC INP1 INAdj DIAG IN1 C1 R1 RRS VRS Variable Reluctance Sensor + − COMP1 Active Clamp VCC VCC INP2 IN2 C2 R2 RRS VRS Variable Reluctance Sensor + − COMP2 Active Clamp OUT2 To mP RAdj GND SOIC−8 CASE 751 CS1124 = Device Code A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Package MARKING DIAGRAM 1 8 CS112 ALYW4 G DIAG GND 18 OUT2 IN2 OUT1 IN1 VCC INAdj See detailed ordering and shipping information in the package dimensions section on page 3 of this data sheet. ORDERING INFORMATION PIN CONNECTIONS http://onsemi.com 1 8 |
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