Iqs127 Reference Design
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- - - - - - - - C - - - TITLE: SHEET: REV - 14:28:05 DRAWN DATE ECP # PCB FILENAME: DOCUMENT OF 1 1.0 2008. THIS DOCUMENT IS THE PROPERTY OF THE OWNER INDICATED HEREON, AND MAY NOT BE COPIED OR USED FOR ANY PURPOSE OTHER THAN THAT FOR WHICH IT IS SUPPLIED, WITHOUT PERMISSION IN WRITING FROM THE OWNER. Sheet1 Thu Apr 22, 2010 ENGINEER IQS127 Reference Designs REVISION: 1 IQS127_RD_V2.sch SCH FILENAME: DC Input VDDHI Coaxial Cable Touch Pad DC Input GND 1uf 1uf VDDHI GND 1uf GND VDDHI 1uf GND Connect to Shield 470R Optional Capacitor for added stability. Optional Capacitor for added stability. GND 5 VDDHI 6 CX 1 OUT 2 VSS 4 VREG 3 SHLD Touch Pad 470R IQS127D 2K < Rshld < 47K A 100pF capacitor can be placed in parallel with the existing capacitors between VDDHI and GND as well as between VREG and GND for added RF immunity. GND 5 VDDHI 6 CX 2 VSS 4 VREG 1 TOUT 3 POUT IQS127S Touch Output Proximity Output Touch Output
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iqs127 ref design
Transcript of Iqs127 Reference Design
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