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ML22Q573 Datasheet(PDF) 25 Page - List of Unclassifed Manufacturers |
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ML22Q573 Datasheet(HTML) 25 Page - List of Unclassifed Manufacturers |
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25 / 69 page  FEDL22Q553-02 ML22Q553 Over-current detectible function at Speaker pins The over-current detectible function for the Speaker pins detect a short between SPP and SPM, and a short between SPP/SPM and GND. The over-current detectible function is effective on speaker power-up by the AMODE command. HiZ ERR Serial I/F PUP SPP SPVDD SPGND SPM SPVDD SPGND analog powerdown speaker powerdown analog powerup speaker powerup analog powerdown speaker powerdown analog powerup speaker powerup PDWN Status AMODE spkr_mode powerup AMODE spkr_mode powerdown DVDD PLAY AMODE spkr_mode powerup PUP over-current detectible function active over-current detectible function active over-current detectible function for Speaker pins When the over-current is detected, the speaker amplifier output pin(SPP/SPM) go to power-down forcibly, and a short error is informed by the ERR pin “H”. In the case of error outbreak, please confirm a status of error by the RDSTAT command, stop playback, and set the speaker power-down by the AMODE command. Afterwards, please clear an error by the ERCL command. If performing playback again, set the speaker power-up by the AMODE command, and next set the PLAY command. However, when shorting to GND is going on, even if the following operation is done, the speaker amplifier output pin(SPP/SPM) go to power-down forcibly, and the ERR pin becomes “H”. (1)After setting power-down by the AMODE command , do power-up by the AMODE command (2)After detect a short error, when input ERCL command without power-down operation of speaker amplifier by the AMODE command detect a short AMODE spkr_mode powerup ERCL PUP HiZ analog powerdown speaker powerdown analog powerup speaker powerup analog powerup speaker powerdown analog powerdown speaker powerdown analog powerup speaker powerup RDSTAT ERR read AMODE spkr_mode powerup AMODE spkr_mode powerdown over-current detectible function active HiZ SPVDD SPGND over-current detectible function active SPVDD SPGND Serial I/F SPP SPM Status ERR over-current detectible function Operation Flow (Example) 25/69 |
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