GL911TX View Datasheet(PDF) - Genesys Logic

Part Name

Description

Manufacturer

GL911TX

Wireless Mouse Transmitter Controller

Genesys Logic 

3. Function Description

3.1 Block Diagram

GL911Tx 1.1

PCB Loop

Antenna

DC-DC

Step Up

Transmitter Txen

Module

Txdata

GL911Tx

X/Y/Z/W

Buttons

Tx Crystal

2Mhz Resonator

Figure 3-1:GL911Tx Block Diagram

3.2 Power supply

GL911Tx‘s operation voltage is between 2.2V to 5.0V. It is recommended to use DC-DC step up

converter to provide a stable 3.0V for GL911Tx MCU, IR Emitter LED and analog photo sensors. It is

possible to reduce the DC-DC step up converter circuit, if using the digital photo sensors.

3.3 Resonator for oscillator

GL911Tx has been optimized for its firmware code. It uses only 2Mhz resonator to operate 4800 Bps

encoding and mouse control sequence. Lower resonator frequency means lower power consumption

and longer battery operation life.

3.4 Reset & Setup Button

Each mouse needs a unique Random ID to avoid co-channel interference between two or more closer

device working at the same time. Press “Setup” button can change the Random ID at each time.

The “Setup” button and the MCU “reset” pin is the same pin (Active Low). Pull up resistor (30K~100K

ohm) is required for this pin. When the setup button is pressed (change from Low to High) GL911Tx

will generate a new 8 bits ID with random number and enter “Broadcast mode” 30 seconds. If the

receiver (GL901Rx) is also in the “Setup” phase (Note1), receiver will accept the packet and store the

Random ID into EEPROM.

Note1: The receiver will keep listening the broadcast packet 30 seconds after the receiver “Setup”

button is pressed or “Remote Setup” is enabled. Please refer to the GL901Rx datasheet.

©2000-2001 Genesys Logic Inc.—All rights reserved

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