LITE ON TECHNOLOGY KB27RF001 RF K/B User Manual USERS MANUAL
Lite-on Technology Corp. RF K/B USERS MANUAL
USERS MANUAL
LITE-ON Technology Department: HIS R&D
User’s Manual
For Model : SK-7260
RF Wireless Keyboard
Prepared :Muchuan Lee
Version: 1.0
Department: HIS, R&D
Date: May. 22th, 2003
LITE-ON Technology Department: HIS R&D
Table of Contents
1. GENERAL
MAIN FEATURE .............................................................................................................1
SOFTWARE REQUIREMENT.............................................................................................1
2. MECHANICAL ID
KEYBOARD/RECEIVER ......................................................................................................2
3. ELECTRICAL FEATURE
3.1 KEYBOARD TRANSMITTER ......................................................................................................3
3.1.1 Operating voltage ....................................................................................................................................................4
3.1.2 Current consumption................................................................................................................................................4
3.1.3 Power consumption..................................................................................................................................................4
3.1.4 Low Power Indicator................................................................................................................................................4
3.2 RECEIVER .................................................................................................................................5
3.2.1 Operating voltage ....................................................................................................................................................5
3.2.2 Current consumption................................................................................................................................................5
3.3 FUNCTION DESCRIPTION ..........................................................................................................5
3.3.1 Interface specification with host PC ........................................................................................................................5
3.3.2. Channel and ID default setting................................................................................................................................6
4. NOTE
SK-7260 RF WIRELESS KEYBOARD Page No: 1 of 6
1. General
SK-7260 is a 27 MHZ RF keyboard set, the product is composed of a wireless desk top
PC keyboard and a PS2 receiver.
The keyboard includes Standard function keys and several (option) easy access keys.
General the receiver supports both keyboard and mouse function. There are only
described
keyboard and receiver functionality in the product specification but excluded mouse
specification.
The product package includes wireless keyboard and receiver, mouse device is optional
according to customer’s demend.
1.1 Main feature
The product provides 2 channels /256 ID operation to prevent frequency
interference. The receiver interface of supporting both keyboard and mouse to the
system through PS2 ports.
.
Single chip keyboard & Receiver controller.
Phantom key detection.
Low power consumption .
4k bps baud rate in air.
Provides 2 RF channels .
256 ID codes randomly generated to resist interference.
EEPROM interface for ID keeping
Low battery detector function for transmitter.
1.2 Software requirement
The keyboard, receiver and drivers are compatible with operating systems that are
WIN98, Windows Millennium and Windows 2000. The driver-application also
must meet all current and future Microsoft WHQL requirements.
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2. Mechanical ID
Keyboard:
Receiver :
SK-7260 RF WIRELESS KEYBOARD Page No: 3 of 6
3. Electrical Specification
Functional Block diagram:
Microprocessor MA6231
3.1 Keyboard Transmitter
Operating voltage
The operating voltage range for keyboard is 2 ~ 3.3 Vdc.
There are 2 AA batteries providing 3.0V for operation f
Current consumption
Typical current consumption is 8 mA, .Maximum at 10 mA
Suspend current is about 80 uA.
Power consumption
The power consumption is less than 0.024 W at operation mode and 240 uW
at sleep mode.
Low Power Indicator
Low power indicator on the keyboard will be lit during hitting key when the
battery voltage in the keyboard transmitter is less than about 2V.
CPU
Crystal : 32.768KHz RF Link
PC Host
PS2 Interface
cable
Low power indicator
N
umL ,CAP, Scrol
LED Data indicator
Keyboard
(Base-Band)
CPU
Crystal : 32.768KHz
TX-Freq :
27.145 MHz
RX-Freq :
Crystal : 26.690
/
2
6.590
MHz
Base-Band
Microprocessor
MA6135
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3.1.1 Circuitry
PCB Assembly
Microprocessor MA6231 , MosArt ‘s Chip is applied. It’s placed on
the PCB main board. There is also an antenna connected to this PCB
for transmitting RF signal.
3.1.2 Battery Life
The battery life under the operating condition of 10 keystrokes/sec
continuous use is 80 hours for alkaline type and 30 hours for Zinc-Carbon
type.
3.1.3 Effective Transmission Distance
Effective transmission distance is 2 meters.
3.1.4 Features of keyboard
This model contains easy access keys, including web. and multimedia keys .
There is one LED on the keyboard for battery low power indication.
.It has a standard keyboard function with the language layout of US English
version.
Two AA batteries are to be installed at the bottom of the keyboard for operation.
There is a channel selection button at the bottom side of keyboard .
Single chip solution , imbedded DC-to-DC converter to prevent malfunction of
low battery power ,integrated RF components especially optimized for 27 MHz
RF keyboard transmitter
32.768kHz main clock to reach a quite low power consumption.
Easy Acess Key Code Table
Win2000 compatible, they are include,refer to table below: PS/2 Hot key
No
. Usage Name / Key
Name Set1
Make Set1
Break Set2 Make Set2 Break
1 Scan Next Track E0 19 E0 99 E0 4D E0 F0 4D
2 Scan Previous Track E0 10 E0 90 E0 15 E0 F0 15
3 Stop E0 24 E0 A4 E0 3B E0 F0 3B
4 Play / Pause E0 22 E0 A2 E0 34 E0 F0 34
5 Mute E0 20 E0 A0 E0 23 E0 F0 23
6 Volume Increment E0 30 E0 B0 E0 32 E0 F0 32
7 Volume Decrement E0 2E E0 AE E0 21 E0 F0 21
8 EMail Reader E0 6C E0 EC E0 48 E0 F0 48
9 WWW Home E0 32 E0 B2 E0 3A E0 F0 3A
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10 WWW Back E0 6A E0 EA E0 38 E0 F0 38
11 WWW Forward E0 69 E0 E9 E0 30 E0 F0 30
12 WWW Favorites E0 66 E0 E6 E0 18 E0 F0 18
13 WWW Search E0 65 E0 E5 E0 10 E0 F0 10
14 WWW Refresh E0 67 E0 E7 E0 20 E0 F0 20
*These controls are currently supported in Windows Me only.
3.2 Receiver
3.2.1 Operating voltage
Voltage supplied to keyboard: 5+/-0.25 VDC
With ripple lower than 150mv, and capable of supply load current up to 100
mA with voltage drop less than 0.25 VDC
Current consumption
Under nominal 5 VDC power supplied, typical current
operating is 10 mA and 15 mA at maximum.
Power consumption
Under normal operation, the power consumption of total unit will be less
than
3.2.2 Circuitry
PCB Incl
ude a MosArt’s microprocessor MA6135 (Keyboard + Mouse ) as a
base band controller , two 3361 IF chips for RF receiving function and a EEPROM
93C46 for ID memory.
There are put on to a double side PCB.
Cable connector :
6 pin PS2 min-DIN connector compatible with IBM PS2 spec..
LED indicators
There are four indicators(green) on the receiver included
NumLock ,CapLock,ScroLock and Receiving Data LEDs. The data indicator
will be ON only when data is receiving from the transmitter.
3.3 Function description
3.3.1 Interface specification with host PC
The keyboard Receiver uses IBM PS2 interface to PC host in data
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communication between them.
3.3.2 Operation
Battery Installation
Installs two AA batteries to transmitter and connected the receiver with PC
system, it’s ready for connection procedure.
Connection (ID Pairing) procedure
Procedure by steps
Step-1:Pressing channel button on the transmitter one time first ,
Step-2: Right away to press the channel button on the receiver at second and they
Should be in connection between,
Step-3: Then go to the normal operate.
Note: preset in the production line as default setting before delivery
ID change :
Same as the the procedure of “connection procedure”.
Channel and ID numbers
Channel: two channels including CH1 for keyboard(27.145mHZ) and CH2
For mouse (27.045mHz)
ID: There has a randomly 256 ID from for selection.
Note: The ID indication is to prevent from interfering each other.
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4. NOTE
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection. This equipment generates, uses and can radiated radio frequency
energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one
or more of the following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.
Shielded interface cables must be used in order to comply with emission limits.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user‘s authority to operate the equipment.
The manufacturer is not responsible for any radio or TV Interference caused by
unauthorized modifications to this equipment. Such modifications could void the user's
authority to operate the equipment.
End of SK-7260 User’s Manual