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ADNS-3080 Arkusz danych(PDF) 8 Page - Pixart Imaging Inc. |
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ADNS-3080 Arkusz danych(HTML) 8 Page - Pixart Imaging Inc. |
8 / 38 page 8 Figure 8. Schematic Diagram for USB, PS/2 mouse application with ADNS-3080 Notes • Caps for pins 15 and 17 MUST have trace lengths LESS than 5 mm to nearest ground pin. • Pins 15 and 17 caps MUST use pin 16 GND. • Pin 9, if used, should not be connected to PCB GND to reduce potential RF emissions. • The 0.1 uF caps must be ceramic. • Caps should have less than 5 nH of self inductance. • Caps should have less than 0.2 Ω ESR. • NC pins should not be connected to any traces. • Surface mount parts are recommended. • Care must be taken when interfacing a 5V microcontroller to the ADNS-3080. Serial port inputs on the sensor should be connected to open- drain outputs from the microcontroller or use an active drive level shifter. NPD and RESET should be connected to 5V microcontroller outputs through a resistor divider or other level shifting technique. • VDD3 and GND should have low impedance connections to the power supply. • Capacitors connected to pin 15 and 17 should be connected to pin 16 and then to pin 19. 0.1 uF 14 10 Vcc Vpp 9 VSS Ceramic Resonator Murata CSALS 24 M 0X 53 -B 0 TDK FCR 24. 0 M 2G 17 5 V DD LED_CTRL SURFACE Internal Image Sensor ADNS 2120 Lens HLMP-EG3E-xxxxx 24 MHz 8 10 OSC_OUT OSC_IN 15 GND 24 P0.5* 3 P0.4* 4 6 MOSI RESET P0.2 23 1.3 K Ω 16 15 D - D + Vreg 11 P1.7 P1.5 P1.4 17 18 7 Vcc D + D - GND SHLD 6 MHz 12 13 XTALIN XTALOUT (Optional) 6 5 P1.2 P1.0 Buttons L M V DD 19 16 GND REFB 14 P0.3 7 NPD 4 P0.7* 3 SCLK 21 P0.6 2 MISO 22 9 GUARD 11 18 20 P1.1 R 20K Ω 20K Ω 1 NCS LP2950ACZ-3.3 13 REFC 2.2 uF 187 Ω 1/8 W Vcc Vo 3.3V 12 OPTP 20 10 K Ω 10 K Ω Vcc Vcc QA QB ALPS EC10E Scroll Wheel Encoder 1 2 3 20k Ω 20k Ω 0.1uF 4.7uF 0.1uF Vin Vo GND 2 4.7uF + 0.1uF 31 BS170 + + Notes: - All capacitors close to chip - 24MHz and 6MHz oscillators close to chip - * Outputs configured as open drain All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. High-Performance Optical Mouse Sensor |
Podobny numer części - ADNS-3080 |
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Podobny opis - ADNS-3080 |
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