M65854FP Datasheet, PDF (1/14 Pages) Mitsubishi Electric Semiconductor – DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT

PRELIMINARY ^{M65854FP 50} _{soNmoeticpear;aTmheistriisc}
nlimotitas ^{fainrealssupbejecicfitctaoticohna. nge.}
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
MIX
ALC
MIC VOL
MIX
ECHO
ECHO VOL
FEEDBACK
VOL
Lch
MIX
OUTPUT
Rch
MIX
OUTPUT
MITSUBISHI
ELECTRIC
( 1 / 14 )