Keyboard Transmitter; Operating Voltage; Current Consumption; Power Consumption - LiteOn SK-7260 User Manual

3. Electrical Specification
Functional Block diagram:
Keyboard
(Base-Band)
CPU
Crystal : 32.768KHz
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
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.
SK-7260 RF WIRELESS KEYBOARD
Low power indicator
TX-Freq :
27.145 MHz
RX-Freq :
Crystal : 26.690 CPU
/26.590 MHz
Crystal : 32.768KHz
NumL ,CAP, Scrol
LED
8 mA, .Maximum at 10 mA
RF Link
Microprocessor
MA6135
Base-Band
Data indicator
PS2 Interface
PC Host
cable
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