M65853FP Datasheet, PDF (1/17 Pages) Mitsubishi Electric Semiconductor – DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT

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DIGITAL ECHO
WITH
MITSUBISHI SOUND PROCESSOR ICs
MICROPHONE MIXING CIRCUIT
SE
KARAOKE
RI
ES
DESCRIPTION
The M65853 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, echo effect volume and echo
feedback 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
• 5V single power supply
RECOMMENDED OPERATING CONDITION
• Supply voltage range • • • • • Vcc = 4.5 ~ 5.5V
Rated supply voltage • • • • • Vcc = 5V
SYSTEM CONFIGURATION
PIN CONFIGURATION
MCLKCONT 1
VALC 2
MIC1IN 3
ALC1 4
MIC1NFIN 5
MIC1OUT 6
MIC1VOLIN 7
MIC2IN 8
ALC2 9
MIC2NFIN ₁₀
MIC2OUT 11
MIC2VOLIN 12
MICOUT 13
LPF1IN1 14
LPF1IN2 ₁₅
LPF1OUT 16
ADINTOUT ₁₇
ADINTIN 18
ADCONT 19
REF 20
GND 21
42 _{MIC SW}
41 _DATA
40 _CLOCK
39 LATCH
38 PS2
37 PS1
36 _LOU
35
T
ROUT
34 _VCFIL
33 LIN1
32 _RIN1
31 LIN2
30 RIN2
29 VOL IN
28 LPF2OUT
27 LPF2IN2
26 LPF2IN1
25 DAINTOUT
24 DAINTIN
23 DACONT
22 VCC
Lch1
INPUT
Lch2IN
PUT
Rch1
INPUT
Rch2IN
PUT
MIC
MIC
SOURCE
SELECTOR
L
R
(L+R)/2
VOCAL
CUT
ALC
MIC VOL
MIX
ALC
MIC VOL
PHASE
SHIFTER
SURROUND
MIX
ECHO
ECHO VOL
FEEDBACK
VOL
MITSUBISHI
ELECTRIC
Lch
MIX
OUTPUT
Rch
MIX
OUTPUT
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