Operational Description

FCC ID: TUVDS2129B

Operational Description

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FCCID_746627

DS-2129-B TX Operation Description TX Frequency: 27.045MHz Modulation Type: ASK DS-2129-B is a mouse with 9 function keys. It contains 2 pieces of rechargeable battery and may be charged from USB port. The mouse is designed with 2 ICs: Optical sensor U2 (PAN301) and RF MCU U1 (MA6227). Q1 and Q2 etc. form circuits of charging and RF automatic stop function. RF MCU U1 integrates a DC-DC converter to convert battery voltage to a stable DC 3V for supplying the mouse. U1 receives signals of function keys when working. When the mouse moved by a user, Optical sensor U2 detects the movement and send a signal to U1. All signals are processed in U1 and encoded. Y2 is an oscillator of RF generator with frequency 27.042MHz. The frequency is modulated to frequency 27.045MHz + 3kHz, then amplified and transmitted by an antenna. Q1 and Q2 etc. form a charging circuit to charge batteries when their voltage less than 2.9V. Charging is stop automatically when batteries are fully charged.





Document Created: 2019-09-14 11:00:17
Document Modified: 2019-09-14 11:00:17
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