M65851FP Datasheet, PDF (21/36 Pages) Mitsubishi Electric Semiconductor – SINGLE CHIP KARAOKE PROCESSOR(SOUND PROCDSSOR ICs)

PRELIMINARY _{Nsootmicee ;pTahraismiestnrioctliamfiitnsaal} ^{rsepseucbifijceacttioton.change.}
MITSUBISHI SEMICONDUCTORS
(SOUND PROCDSSOR ICs)
M65851FP
50^SERIES
KARAOKE
2 Music detection
To search a music interval, it is necessary to judge if it is a music or not. This judgment
is made by monitoring the 20 seconds and counting the pulse signal (after level detection).
The pulse signal counts is bigger than fixed counts, it is judged as a music.
Pulse counter is reset whenever monitor 20 seconds or judged no music decision.
pulse output
(after level detection)
about 20 sec
Music decision
3 No music detection
After Music decision ( 2 ), no music is judged when no pulse in level detection at 3
seconds.But if there isn't no pulse when monitoring the3 seconds, no music decision
counter is reset .
about 3 sec
pulse output
(after level detection)
No music decision
MITSUBISHI
ELECTRIC
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