Operational Description

FCC ID: TUVMSEB

Operational Description

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FCCID_615834

Circuit Operation Description

The circuit of mouse transmitter is formed of optical control circuit IC U1, MCU and RF
control circuit IC U2.

U2, L2 and D1 etc. provide 3V working voltage. X1 is a crystal oscillator. X2 and U2 forms
a circuit of RF modulation and amplification. When mouse is moved on a table, U1 detects
the movement and send a signal to U2, at the same time, U2 receives signals of key and
coder. All signals will be coded, modulated, amplified and outputted from pin 8 of U2 to
antenna, then RF is transmitted.

SW-ID is a switch. If press it, U2 will transmit a code to receiver for communication. D4
indicates status of low voltage and will flare when battery voltage low. K1 switches working
modes, press K1, the mouse goes to sleep status.

Document Created: 2005-12-26 09:12:56
Document Modified: 2005-12-26 09:12:56

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