M65851FP Datasheet, PDF (1/28 Pages) Mitsubishi Electric Semiconductor – SINGLE CHIP KARAOKE PROCESSOR(SOUND PROCDSSOR ICs)

M65851FP
Single Chip Karaoke Processor
REJ03F0172-0201
Rev.2.01
Jan 25, 2008
Description
The M65851FP is an LSI that not only contains circuits (echo and key control) necessary for Karaoke but also improves
other peripheral functions.
This IC has full peripheral functions including vocal cut, phase shifter, equalizer, detection of intervals between songs,
digital surround, and Karaoke scoring. It is therefore suitable not only for dedicated Karaoke units but also for radio
cassette tape recorders, TV, VCR, and miniature unit audio systems with Karaoke function.
Features
• Capable of composing echo and key control circuits necessary for Karaoke system with a single chip
• Echo circuit is capable of supporting digital surround by adopting 16 Kbit RAM built-in digital delay
• 17 steps of –8 to +8 for key control (1 step is equivalent to a half tone)
• Karaoke entertainment functions such as Karaoke scoring, vocal cut, equalizer, phase shifter, detection of intervals
between songs, and magic voice functions
• Generation of unnecessary radiation is avoided because clock’s built-in current-control oscillation circuit keeps
clock effects inside the clock
• Built-in automatic reset circuit activated with power turned on
• 5 V single power supply
Recommended Operating Condition
• Supply voltage range: V_CC = 4.5 to 5.5 V
• Rated supply voltage: V_CC = 5 V
System Configuration
Lch
input
Rch
input
Source
selector
R
L
R+L
MIC
Vocal
cut
ALC
Key control
Score system
Phase
shifter
(ON/OFF)
Music
search
MIX
Lch
output
EQ
MIX
Rch
output
Delay
output
MIC
MIC VOL
MIC
AMP
MIX
Echo/
Surround
Delay VOL
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
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