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Mitsubishi - DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT

Numéro de référence M65854
Description DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT
Fabricant Mitsubishi 
Logo Mitsubishi 





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M65854 fiche technique
PRELIMINARY M65854FP 50soNmoeticpear;aTmheistriisc
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DIGITAL ECHO
WITH
MITSUBISHI SOUND PROCESSOR ICs
MICROPHONE MIXING CIRCUIT
SE
KARAOKE
RI
E
S
DESCRIPTION
The M65854 is a CMOS IC built-in Digital Echo function with microphone peripheral circuits for
"Karaoke" equipment packed in a single chip.
It is suitable for "Karaoke" equipments such as Video CD Player, Mini Stereo, CD-Radio Cassette, TV
or VCR.
FEATURES
High performance digital echo circuit thanks to 16Kbit memory
• Built-in surround function which works Simulated Stereo for
monaural source and Stereo Surround for stereo source
ALC-equipped microphone amplifiers permit excessively
high input. ALC operating voltage can be set as desired.
• 2 microphone volumes and echo effect volume are included
• Stereo microphone-line mixing amplifiers
• Karaoke entertainment functions such as vocal cut and
automatic vocal support system
• Built-in current-control oscillation circuit
• Built-in automatic reset circuit activated with power on
• The use of AUDIO SW easy to control without Microcomputer
• 5V single power supply
RECOMMENDED OPERATING CONDITION
• Supply voltage range • • • • • • • • • •Vcc = 4.5 ~ 5.5V
Rated supply voltage • • • • • • • • • • Vcc = 5V
PIN CONFIGURATION
MCLKCONT 1
MIC1IN 2
ALC1 3
MIC1NFIN 4
MIC1OUT 5
MIC1VOLIN 6
MIC2IN 7
ALC2 8
MIC2NFIN 9
MIC2OUT 10
MIC2VOLIN 11
MIC OUT 12
LPF1IN1 13
LPF1IN2 14
LPF1OUT 15
ADINTOUT 16
ADINTIN 17
ADCONT 18
REF 19
GND 20
VCC 21
42 MIC1VOL
41 MIC2VOL
40 ECHOVOL
39 AUDSW5
38 AUDSW4
37 AUDSW3
36 AUDSW2
35 AUDSW1
34 PS2
33 PS1
32 LOUT
31 ROUT
30 VCFIL
29 LIN
28 RIN
27 LPF2OUT
26 LPF2IN2
25 LPF2IN1
24 DAINTOUT
23 DAINTIN
22 DACONT
SYSTEM CONFIGURATION
Lch
INPUT
Rch
INPUT
SOURCE
SELECTOR
L
R
(L+R)/2
VOCAL
CUT
ALC
PHASE
SHIFTER
SURROUND
MIC
MIC
MIC VOL
ALC
MIC VOL
MIX
ECHO
ECHO VOL
FEEDBACK
VOL
MIX
Lch
MIX OUTPUT
Rch
MIX OUTPUT
MITSUBISHI
ELECTRIC
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