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EKM8022
USB & PS/2 Mouse Controller
Product Specification
DOC. VERSION 1.0
ELAN MICROELECTRONICS CORP.
April 2004
Trademark Acknowledgments: IBM is a registered trademark and PS/2 is a trademark of IBM. Windows is a trademark of Microsoft Corporation. ELAN and ELAN logo are trademarks of ELAN Microelectronics Corporation.
Copyright (c) 2005 by ELAN Microelectronics Corporation
All Rights Reserved
Printed in Taiwan
The contents of this specification are subject to change without further notice. ELAN Microelectronics assumes no responsibility concerning the accuracy, adequacy, or completeness of this specification. ELAN Microelectronics makes no commitment to update, or to keep current the information and material contained in this specification. Such information and material may change to conform to each confirmed order. In no event shall ELAN Microelectronics be made responsible for any claims attributed to errors, omissions, or other inaccuracies in the information or material contained in this specification. ELAN Microelectronics shall not be liable for direct, indirect, special incidental, or consequential damages arising from the use of such information or material. The software (if any) described in this specification is furnished under a license or nondisclosure agreement, and may be used or copied only in accordance with the terms of such agreement. ELAN Microelectronics products are not intended for use in life support appliances, devices, or systems. Use of ELAN Microelectronics product in such applications is not supported and is prohibited. NO PART OF THIS SPECIFICATION MAY BE REPRODUCED OR TRANSMITTED IN ANY FORM OR BY ANY MEANS WITHOUT THE EXPRESSED WRITTEN PERMISSION OF ELAN MICROELECTRONICS.
ELAN MICROELECTRONICS CORPORATION
Headquarters: No. 12, Innovation Road 1 Hsinchu Science Park Hsinchu, Taiwan 30077 Tel: +886 3 563-9977 Fax: +886 3 563-9966 http://www.emc.com.tw Hong Kong: Elan (HK) Microelectronics Corporation, Ltd. Rm. 1005B, 10/F Empire Centre 68 Mody Road, Tsimshatsui Kowloon , HONG KONG Tel: +852 2723-3376 Fax: +852 2723-7780 elanhk@emc.com.hk Shenzhen: Elan Microelectronics Shenzhen, Ltd. SSMEC Bldg., 3F, Gaoxin S. Ave. Shenzhen Hi-Tech Industrial Park Shenzhen, Guandong, CHINA Tel: +86 755 2601-0565 Fax: +86 755 2601-0500 USA: Elan Information Technology Group 1821 Saratoga Ave., Suite 250 Saratoga, CA 95070 USA Tel: +1 408 366-8223 Fax: +1 408 366-8220
Europe: Elan Microelectronics Corp. (Europe) Siewerdtstrasse 105 8050 Zurich, SWITZERLAND Tel: +41 43 299-4060 Fax: +41 43 299-4079 http://www.elan-europe.com
Shanghai: Elan Microelectronics Shanghai Corporation, Ltd. 23/Bldg. #115 Lane 572, Bibo Road Zhangjiang Hi-Tech Park Shanghai, CHINA Tel: +86 021 5080-3866 Fax: +86 021 5080-4600
Contents
Contents
1 2 3 General Description .................................................................................................. 1 Features ..................................................................................................................... 1 Pin assignment.......................................................................................................... 2 3.1 3.2 3.3 4 EKM8022A (18-Pin) for 3D3K Z/2....................................................................... 2 EKM8022A (18-Pin) Bounding PAD................................................................. 2 EKM8022B (20-Pin) for 3D3K Z/4 ...................................................................... 3
3.4 EKM8022B (20-Pin) Bounding PAD................................................................. 3 Function Description ................................................................................................ 4 4.1 Quadrature Signal Timing Diagram .................................................................... 4
4.1.1 4.1.2 X Y Z Axis Counting .......................................................................................4 Quadrature Output Crossed Width Limit .............................................................5 PS/2 Mouse Commands Description ..................................................................5 Microsoft PS/2 Scrolling Mouse ..........................................................................5 USB function Description ....................................................................................7
4.2
PS/2 Function Description.................................................................................. 5
4.2.1 4.2.2 4.2.3
5 6 7
Absolute Maximum Rating ....................................................................................... 8 Electrical Characteristic ........................................................................................... 8 Package Diagram ...................................................................................................... 9 7.1 7.2 7.3 PDIP-18L 300MIL PACKAGE OUTLINE DIMENSION(Unit:mm) ....................... 9 PDIP-20L 300MIL PACKAGE OUTLINE DIMENSION(Unit:mm) ....................... 9 SOP-18L 300MIL PACKAGE OUTLINE DIMENSION(Unit:mm) ...................... 10
8
7.4 SOP-20L 300MIL PACKAGE OUTLINE DIMENSION(Unit:mm) ...................... 10 Pad List Information ................................................................................................11 8.1 8.2 8.3 EKM8022A Pad Configuration .......................................................................... 11 EKM8022A Pad Name & Coordinate Table ...................................................... 11 EKM8022B Pad Configuration.......................................................................... 12
9
8.4 EKM8022B Pad Name & Coordinate Table ...................................................... 12 Application Circuit .................................................................................................. 13 9.1 9.2 9.3 9.4 9.5 9.6 NOTICE DIAGRAM .......................................................................................... 13 COMPONENTS IN DETAIL.............................................................................. 13 EKM8022A_Mechanical Z/2 Application For Ball Type..................................... 14 EKM8022B_Photo_Z/4 Application For Ball Type............................................. 14 EKM8022A_Mechanical Z/2 Application For OM02.......................................... 15 EKM8022B_Photo Z/4 Application For OM02 .................................................. 15
Product Specification (V1.0) 4.16.2004
* iii
Contents
Specification Revision History
Doc. Version 1.0 Revision Description Preliminary version Date 2004/04/16
iv *
Product Specification (V1.0) 4.16.2004
EKM8022
USB & PS/2 Mouse Controller
1
General Description
The EKM8022 is a Mouse Controller designed to control both USB & PS/2 Mouse device for XY Quadrature mode. This Mouse Controller can auto detect USB or PS/2 mode, and supports X, Y, Z three axes with 400/800 DPI(simulated by firmware), and L, R, M three buttons under both USB and PS2 mode.
2
Features
Universal Serial Bus Specification, version 1.1 USB HID Specification, version 1.11 Auto-detecting PS/2 port or USB port. Compatible with Microsoft 3D PS/2 mouse. Support 3D (X,Y,Z) 3 Key (L,R,M) input. Support Z/2 and Z/4 two Z-axis input type. Support Agilent HDNS2000 ADNS2051 OM01 OM02 PixArt
PAN101BOI/BSI Optical Mouse Sensor. 800DPI simulated by firmware. Applications 3D, 3 Buttons USB and PS/2 Combo Mouse Package 18 Pin PDIP (300MIL) EKM8022AP 3D 3K Z/2 18 Pin SOP (300MIL) EKM8022AM 3D 3K Z/2 20 Pin PDIP (300MIL) EKM8022BP 3D 3K Z/4 20 Pin SOP (300MIL) EKM8022BM 3D 3K Z/4
Product Specification (V1.0) 4.16.2004
(This specification is subject to change without further notice)
*1
EKM8022
USB & PS/2 Mouse Controller
3
Pin assignment
3.1 EKM8022A (18-Pin) for 3D3K Z/2
4 3 2 1 18171615
L KEY / Z_SEL IR_C Z1 Z2 R KEY D_SEL VSS V3.3 OSCI
1 2 3 4 5 6 7 8 9
18 17 16 15 14 13 12 11 10
X1 X2 Y1 Y2 M KEY D+ / CLK D- / DATA VDD OSCO 5 6 7 8
(0,0) +
14 X 9 101112 13
3.2 EKM8022A (18-Pin) Bounding PAD
Symbol L Z_SEL IR_C Z1 Z2 R D_SEL VSS V3.3V OSCI OSCO VDD D- / DATA D+ / CLK M Y2 Y1 X2 X1 I/O I I O I I I I O I I/O I/O I/O I I I I I PIN 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Function Left Key Input Z/2 / Z/4 Selection Pin FLOATING for Z/2 PULL HIGH 5.1K TO 3.3V for Z/4 IR(Sensor power) Control Pin 1 Z axis Input 1 Z axis Input 2 Right Key Input 400/800DPI Select Pin Floating for 400DPI , GND for 800DPI) GND 3.3V DC voltage output from internal regulator. This pin has to be tied to a 4.7 F capacitor. 6MHz ceramic resonator input. Return path for 6-MHz ceramic resonator. 5 V Power Input USB D- or PS/2 Data I/O USB D+ or PS/2 CLK I/O Middle Key Input Y axis Input 2 Y axis Input 1 X axis Input 2 X axis Input 1
2*
Product Specification (V1.0) 4.16.2004
(This specification is subject to change without further notice)
EKM8022
USB & PS/2 Mouse Controller
3.3 EKM8022B (20-Pin) for 3D3K Z/4
4 3 2 1 20191817
L KEY / D_SEL IR_C Z1 Z2 R KEY D_SEL VSS VSS V3.3 OSCI
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
X1 X2 Y1 Y2 M KEY IR_C2 D+ / CLK D- / DATA VDD OSCO 5 6 8 9 16 15 10111213 14 (0,0) +
3.4 EKM8022B (20-Pin) Bounding PAD
Symbol L Z_SEL IR_C Z1 Z2 R D_SEL VSS V3.3V OSCI OSCO VDD D- / DATA D+ / CLK IR_C2 M Y2 Y1 X2 X1 I/O I I O I I I I O I I/O I/O I/O O I I I I I PIN 1 1 2 3 4 5 6 7,8 9 10 11 12 13 14 15 16 17 18 19 20 Function Left Key Input Z/2 / Z/4 Selection Pin FLOATING for Z/2 PULL HIGH 5.1K TO 3.3V for Z/4 IR(Sensor power) Control Pin 1 Z axis Input 1 Z axis Input 2 Right Key Input 400/800DPI Select Pin Floating for 400DPI , GND for 800DPI) GND 3.3V DC voltage output from internal regulator. This pin has to be tied to a 4.7 F capacitor. 6MHz ceramic resonator input. Return path for 6-MHz ceramic resonator. 5 V Power Input USB D- or PS/2 Data I/O USB D+ or PS/2 CLK I/O IR Control Pin 2 (use for Photo Z/4 Application Power Down) Middle Key Input Y axis Input 2 Y axis Input 1 X axis Input 2 X axis Input 1
Product Specification (V1.0) 4.16.2004
(This specification is subject to change without further notice)
*3
EKM8022
USB & PS/2 Mouse Controller
4
Function Description
Fig-1 : Function block
4.1 Quadrature Signal Timing Diagram
4.1.1 X Y Z Axis Counting
XY AXIS COUNTING
X1(Y1) X2(Y2) +1 Z/2 COUNTING +1 +1 +1 -1 -1 -1 -1
Z1 Z2 +1 Z/4 COUNTING +1 -1 -1
Z1 Z2 +1 -1
4*
Product Specification (V1.0) 4.16.2004
(This specification is subject to change without further notice)
EKM8022
USB & PS/2 Mouse Controller
4.1.2 Quadrature Output Crossed Width Limit
X1(Y1) X2(Y2) T T T T T T T T
NOTE For X(Y) Axis ,T > 40us For Z Axis ,T > 1ms
4.2 PS/2 Function Description
4.2.1 PS/2 Mouse Commands Description
Hex Code
FF FE F6 F5 F4 F3,XX F2 F0 EE EC EB EA E9 E8 E7 E6
Command
Reset Resend Set Default Disable Enable Set Sampling Rate Read Device Type Set Remote Mode Set Wrap Mode Reset Wrap Mode Read Data Set Stream Mode Status Request Set Resolution Set Autospeed Reset Autospeed
EKM8022 echo code
FA,AA,00 XX,(XX,XX) FA FA FA FA,FA FA,00 FA FA FA FA,XX,XX,XX FA FA,XX,XX,XX FA,FA FA FA
4.2.2 Microsoft PS/2 Scrolling Mouse
4.2.2.1 Entering procedure: Except in WRAP mode, while EKM8022 received the following consecutive command.
A B C F3 C8 ---- set sampling rate 200/sec F3 64 ---- set sampling rate 100/sec F3 50 ---- set sampling rate 80/sec
Product Specification (V1.0) 4.16.2004
(This specification is subject to change without further notice)
*5
EKM8022
USB & PS/2 Mouse Controller
4.2.2.2 Operating
A B C All of the commands in legacy mode still be valid. The ID code of read device type command (F2) will changed from "00" to be "03". Data report will be four bytes format:
Byte
1
Bit
0 1 2 3 4 5 6 7
Description
Left button status; 1 = pressed Right button status; 1 = pressed Middle button status; 1 = pressed Reserve X data sign; 1 = negative Y data sign; 1 = negative X data overflow; 1 = overflow Y data overflow; 1 = overflow X data (D0-D7) Y data (D0-D7) Z data (D0-D7)
2 3 4
0-7 0-7 0-7
4.2.2.3 Exiting Microsoft Scrolling Mode
There are two ways to exit: A B Power off. Reset command (FF).
Z-axis Input Function : The Z0-Z7 limit value is 7 Z-axis counter accumulates the Z1, Z2 phase changed by movement. This mode includes noise immunity. Z/2 : 2 dot per count. The wheel should stay at Z1=0, Z2=0 or Z1=1, Z2=1 Phase Z/4 : 4 dots per count. the wheel should stay at Z1=0, Z2=0 phase.
6*
Product Specification (V1.0) 4.16.2004
(This specification is subject to change without further notice)
EKM8022
USB & PS/2 Mouse Controller
4.2.3 USB function Description
Descriptor in USB Mode
Descriptor Type Byte1
12 Device Descriptor VID1 00 Configuration Descriptor 09 32 09 00 09 00 07 05 A1 15 HID Report Descriptor 81 05 15 81 05 01 00 00 02 01 81 06 81 09 05 25 95 09 25 C0 03 02 09 01 01 30 7F C0 08 A1 19 95 75 09 75 00 01 01 03 05 31 08 0A 09 29 75 81 09 95 01 03 01 03 38 03 21 11 01 00 01 22 34 04 00 00 01 03 01 02
Byte2
01
Byte3
10
Byte4
01
Byte5
00
Byte6
00
Byte7
00 00
Byte8
08 02
VID0
01 02
PID1
PID0
REV1
REV0
22
00
01
01
00
A0
Interface Descriptor
HID Descriptor Endpoint
* VID * PID * REV
Vendor ID (Default = 0x1267) Product ID (Default = 0x0210) Revision Number = 0x2278 "PS/2+USB MOUSE"
* Product String
USB Mouse Report Data Type
Bit7 Byte0 0 Bit7 Byte1 X-AXIS Bit7 Byte2 Y-AXIS Bit7 Byte3 Z-AXIS Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 0 Bit6 0 Bit5 0 Bit4 0 Bit3 M Bit2 R Bit1 L Bit0 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
Product Specification (V1.0) 4.16.2004
(This specification is subject to change without further notice)
*7
EKM8022
USB & PS/2 Mouse Controller
5
Absolute Maximum Rating
Symbol
Temperature under bias Storage temperature Input voltage Output voltage
min
0 -65 -0.5 -0.5
Max
70 150 6.0 6.0
unit
C C V V
6
Electrical Characteristic
(T = 0C ~70C, VDD=4.4~5.2V, VSS=0V)
Parameter Condition Min Type Max Unit
Symbol
3.3V Regulator Output voltage of 3.3v VRag Regulator Low Power Reset detecting low VResetL Voltage Low Power Reset detecting VResetH high Voltage MCU operating Input Leakage Current for input IIL pins VIHX Clock Input High Voltage VILX GPIO Pins VHL VOH VOL IPH IPL High/Low level transfer point Output High Voltage Output Low Voltage Input current with pull-high resister Input current with pull-low resister Clock Input Low Voltage
VDD = 4.2V ~ 5.2V
3.0
3.3 -
3.6 2.3
V V V
2.4
-
VIN=VDD,VSS OSCI OSCI Input IDrive = 5.0mA ISink = 5.0mA The input pin with internal pull-high resistor of Port6 or port7 is connected to VSS. The input pin with internal pull-low resistor of Port6 is connected to VDD.
2.5 -
1.1
1 1.0 0.4 -
A V V V V V A A
2.4 -
25 330
USB Interface VOH VOL VDI VCM VSE CIN VRG RPH Static Output High Static Output Low Differential Input Sensitivity Differential Input Command Mode Range Single Ended Receiver Threshold Transceiver Capacitance Output Voltage of Internal Regulator Internal Pull-high Resistor USB operation Mode 2.8 0.2 0.8 0.8 USB operation Mode 3.0 -20% 1.5 3.6 0.3 2.5 2.0 20 3.6 +20% V V V V V pF V k
8*
Product Specification (V1.0) 4.16.2004
(This specification is subject to change without further notice)
EKM8022
USB & PS/2 Mouse Controller
7
Package Diagram
7.1 PDIP-18L 300MIL PACKAGE OUTLINE DIMENSION(Unit:mm)
7.2 PDIP-20L 300MIL PACKAGE OUTLINE DIMENSION(Unit:mm)
Product Specification (V1.0) 4.16.2004
(This specification is subject to change without further notice)
*9
EKM8022
USB & PS/2 Mouse Controller
7.3 SOP-18L 300MIL PACKAGE OUTLINE DIMENSION(Unit:mm)
7.4 SOP-20L 300MIL PACKAGE OUTLINE DIMENSION(Unit:mm)
10 *
Product Specification (V1.0) 4.16.2004
(This specification is subject to change without further notice)
EKM8022
USB & PS/2 Mouse Controller
8
Pad List Information
8.1 EKM8022A Pad Configuration
4 3 2 1 18171615
(0,0) +
5 6 7
8
14 X 13 9 101112
8.2 EKM8022A Pad Name & Coordinate Table
Chip Size 1550*2660 UM Pad Number
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Pad Name
L_KEY / Z_SEL IR_C Z1 Z2 R_KEY D_SEL VSS V3.3 OSCI OSCO VDD D_MNS D_PLUS NC M_KEY Y2 Y1 X2 X1
Pad Coordinate (X, Y)
188.9, 1210.0 78.9, 1210.0 -31.1, 1210.0 -141.1, 1210.0 -655.0, -814.6 -655.0, -924.6 -655.0, -1034.6 -301.8, -1210.0 39.6, -1210.0 149.6, -1210.0 259.6, -1210.0 369.6, -1210.0 655.0, -1042.2 655.0, -927.2 655.0, -817.2 628.9, 1210.0 518.9, 1210.0 408.9, 1210.0 298.9, 1210.0
Product Specification (V1.0) 4.16.2004
(This specification is subject to change without further notice)
* 11
EKM8022
USB & PS/2 Mouse Controller
8.3 EKM8022B Pad Configuration
4 3 2 1 20191817
(0,0) +
5 6 8
9
16 15 10111213 14
8.4 EKM8022B Pad Name & Coordinate Table
Chip Size 1550*2660 UM Pad Number
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Pad Name
L_KEY / Z_SEL IR_C Z1 Z2 R_KEY D_SEL VSS V3.3 OSCI OSCO VDD D_MNS D_PLUS IR_C2 M_KEY Y2 Y1 X2 X1
Pad Coordinate (X, Y)
188.9, 1210.0 78.9, 1210.0 -31.1, 1210.0 -141.1, 1210.0 -655.0, -814.6 -655.0, -924.6 -655.0, -1034.6 -301.8, -1210.0 39.6, -1210.0 149.6, -1210.0 259.6, -1210.0 369.6, -1210.0 655.0, -1042.2 655.0, -927.2 655.0, -817.2 628.9, 1210.0 518.9, 1210.0 408.9, 1210.0 298.9, 1210.0
12 *
Product Specification (V1.0) 4.16.2004
(This specification is subject to change without further notice)
EKM8022
USB & PS/2 Mouse Controller
9
Application Circuit
9.1 Notice Diagram
V3.3 33 OMA100 1 2 3
5 2 OM02_6 TCLK X2 X1 Y1 Y2 XY_LED REFA REFB TIO PD R_BIN VDD GND ROSCA GND ROSCB
16 15 14 13 12 11 10 9 Rosc Cosc C8 C7 +
6
1
820 4 5
X1 X2 Y1 Y2 M IR_C2 D+/CLK D-/DATA VDD OSCO
4 EKM8022B_3
1
R_Z/4
L / Z_SEL IR_C Z1 Z2 R D_SEL VSS VSS V3.3 OSCI
20 19
Q2
3904
6 7
+
2 3 4 5
18 17 16 15 14 13 12 11 C6
+
4.7uF 0.1uF 8
SW_DPI 1 2
6 7 8 9
+
R4 R3 R2 R1
Q1 3904
C9 10 4.7uF
VDD
C5
C4
+
C3
C2
+
C1
D+ / CLK D- / DATA VSS
20P
6M
20P
SHLD PORT
9.2 Components in Detail
TYPE
NORMAL APPLICATION EFT BETTER IMPROVEMENT
R1
10
R2
R3
R4
1.5K
C1
10uF
C2
0.1uF(104)
C3
33
33
0.1uF(104)
TYPE
NORMAL APPLICATION EFT BETTER IMPROVEMENT
C4
C5
10uF
C6
0.1uF(104)
C7
100uF
C8
0.1uF(104)
C9
4.7uF
Cosc
10uF
1nF(102)
C5 & C6 have to be closed to MCU(VDD) C7 & C8 have to be closed to Sensor(VDD). C9 has to be closed to MCU(V3.3) R_Z/4 is Opened for Z/2 Type or 5.1K PULL-HIGH to V3.3 for Z/4 Type D_SEL(Pin#6) is floating for 400DPI or tied to GND for 800DPI. It's NOT recommended to use 800DPI mode in Ball Type.
Product Specification (V1.0) 4.16.2004
(This specification is subject to change without further notice)
* 13
EKM8022
USB & PS/2 Mouse Controller
9.3 EKM8022A_Mechanical Z/2 Application For Ball Type
6 1
5 EKM8022A_5
2
1 2
1 1 2 2 Z-AXIS
4 L / Z_SEL IR_C Z1 Z2 R D_SEL VSS V3.3 OSCI X1 X2 Y1 Y2 M D+/CLK D-/DATA VDD OSCO
18 17
6
1
3 4 5
5
16 15 14 13 12 11 0.1uF 10 C4
+ 4
2
200
SW_DPI 1 2
6 7 8
+
10
9 4.7uF
10uF C3
C2 0.1uF
+
C1 10uF
VDD D+ / CLK D- / DATA VSS
20P
6M
20P
1 C9 HAS TO be closed to V3.3(MCU) 2 C3 & C4 HAVE TO be closed to VDD(MCU) 3 DPI_SEL(MCU) PIN is floating for 400DPI or GND for 800DPI(BALL TYPE is NOT recommended to USE 800DPI)
SHLD PORT
9.4 EKM8022B_Photo_Z/4 Application For Ball Type
V3.3
6
1 6 2 1
5
820
V3.3
5 2
4 EKM8022B_2
4
1 R_Z/4
5.1K
L / Z_SEL IR_C Z1 Z2 R D_SEL VSS VSS V3.3 OSCI
X1 X2 Y1 Y2 M IR_C2 D+/CLK D-/DATA VDD OSCO
20 19
6
1
2 3 4 5
5
18 17 16 15 14 13 12 0.1uF 11 C4
10
+ 4
2
200
SW_DPI 1 2
6 7 8 9
+
C9 10 4.7uF
C3 10uF
C2 0.1uF
+
C1 10uF
VDD D+ / CLK D- / DATA VSS
20P
6M
20P
1 C9 HAS TO be closed to V3.3(MCU) 2 C3 & C4 HAVE TO be closed to VDD(MCU) 3 DPI_SEL(MCU) PIN is floating for 400DPI or GND for 800DPI(BALL TYPE is NOT recommended to USE 800DPI)
SHLD PORT
14 *
Product Specification (V1.0) 4.16.2004
(This specification is subject to change without further notice)
EKM8022
USB & PS/2 Mouse Controller
9.5 EKM8022A_Mechanical Z/2 Application For OM02
1 C9 HAS TO be closed to V3.3(MCU) 2 C3 & C4 HAVE TO be closed to VDD(MCU) 3 C5 & C6 HAVE TO be closed to VDD(SENSOR) 4 DPI_SEL(MCU) PIN is floating for 400DPI or GND for 800DPI
2 3 4 5 33 OMA100 1
OM02_5 TCLK X2 X1 Y1 Y2 XY_LED REFA REFB TIO PD R_BIN VDD GND ROSCA GND ROSCB
16 15 14 13 0.1uF 12 11 10 9 Rosc Cosc
+100uF
C6
C5
Q2
EKM8022A_6
6 7
+
3904
X1 X2 Y1 Y2 M D-/DATA D+/CLK VDD OSCO
1 2
1 1 Z-AXIS 2 2
L / Z_SEL IR_C Z1 Z2 R D_SEL VSS V3.3 OSCI
18 17 16 15 14 13 12 11 0.1uF 10 C4
+
4.7uF 0.1uF 8
3 4 5
1.5K
Q1 3904
SW_DPI 1 2
6 7 8
+
10
C9 9 4.7uF
C3 10uF
C2 0.1uF
+
C1 10uF
VDD D+ / CLK D- / DATA VSS
20P
6M
20P
SHLD PORT
9.6 EKM8022B_ Photo Z/4 Application For OM02
1 C9 HAS TO be closed to V3.3(MCU) 2 C3 & C4 HAVE TO be closed to VDD(MCU)
V3.3
3 C5 & C6 HAVE TO be closed to VDD(SENSOR) 4 DPI_SEL(MCU) PIN is floating for 400DPI or GND for 800DPI
6 1
33 OMA100 1 2 3
OM02_7 TCLK X2 X1 Y1 Y2 XY_LED REFA REFB TIO PD R_BIN VDD GND ROSCA GND ROSCB
16 15 14 13 0.1uF
+100uF
5
2
820 4 5
X1 X2 Y1 Y2 M IR_C2 D+/CLK D-/DATA VDD OSCO
4 EKM8022B_4
12 11 10 9
C6
C5
1 R_Z/4
5.1K
L / Z_SEL IR_C Z1 Z2 R D_SEL VSS VSS V3.3 OSCI
20 19
Q2
3904
6 7
+
2 3 4 5
Rosc Cosc
18 17 16 15 14 13 12 0.1uF 11 C4
4.7uF 0.1uF
8
SW_DPI 1 2
6 7 8 9
+
1.5K
Q1 3904
10
+
10 4.7uF
C3 10uF
C2 0.1uF
+
C1 10uF
VDD D+ / CLK D- / DATA VSS
20P
6M
20P
SHLD PORT
Product Specification (V1.0) 4.16.2004
(This specification is subject to change without further notice)
* 15
EKM8022
USB & PS/2 Mouse Controller
16 *
Product Specification (V1.0) 4.16.2004
(This specification is subject to change without further notice)

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