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IQS128 Datasheet(PDF) 5 Page - List of Unclassifed Manufacturers |
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IQS128 Datasheet(HTML) 5 Page - List of Unclassifed Manufacturers |
5 / 33 page IQ Switch® ProxSense® Series Copyright © Azoteq (Pty) Ltd 2011 IQS128 & IQS128LP Datasheet v2.4 Page 5 of 33 All Rights Reserved November 2012 2 Pin-Out The IQS128 is available in a TSOT23-6 package and the IQS128L is available in a DFN8(2x3) package. 2.1 IQS128 2.1.1 Pin-out Figure 2.1 Pin-out of IQS128 package Table 2.1 Pin-out description IQS128 Pin Name Type Function 1 OUT Digital Out Output 2 VSS Ground GND Reference 3 CTRL / ND Digital Input/Output Control input or proximity output / ND pin 4 VREG Analogue Output Internal Regulator Pin (Connect 1µF bypass capacitor) 5 VDDHI Supply Input Supply Voltage Input 6 CX Analogue Sense Electrode 2.1.2 Schematic Figure 2.2 Typical application schematic of IQS128 2.1.3 Typical values Component Value CVREG 1uF RCX 470 Ω (typical) RPU* 4.7 kΩ (typical) CVDDHI 1uF * RPU is only needed if device is setup in active Low state. VDDHI CX VSS VDDHI VREG VREG OUT OUT CTRL/ND VSS CX CTRL / ND VDDHI 1 VDDHI 2 CVDDHI 3 CVREG 6 Note: A 100pF capacitor can be places in parallel with the existing capacitors between VDDHI and GND as well as between VREG and GND for added RF immunity. 5 GND 4 GND IQS128 RCX RPU Sense Electrode CTRL Input/Output Output |
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