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MITSUBISHI SOUND PROCESSOR IC
S
M65831AP/FP
DIGITAL ECHO (DIGITAL DELAY)
DESCRIPTION
The M65831A is an IC developed for producing echo effects added to voice signals
picked up by microphone for karaoke applications.
The IC has the largest memory among the digital delay series. As it’s design is aimed
at high performance, it is best suited to provide radio cassette tape recorders and
miniature unit audio system with quality echo function.
Being pin compatible with the M65830CP / FP and M65843AP / FP, the M65831AP / FP is
suitable for upgrading the series.
Outline
FEATURES
•Built-in input / output filters, A-D and D-A conver ters, and
memory realize a delay system with only a single chip
•Capable of composing low-noise and low-distortion delay
system at low cost by ADM system
(No=-92dB typ, THD=0.5% typ)
•Control mode selections available from 2 kinds : easy mode
using parallel data and microcomputer mode using serial
data
•Sleep mode can be selected to stop IC functions
•Built-in automatic reset circuit
Outline 24P4 (AP)
2.54mm pitch 600mil DIP
(13.0mm X 31.1mm X 3.8mm)
RECOMMENDED OPERATING CONDITIONS
Supply voltage range
Rated supply voltage
V
CC,
V
DD
=4.5 to 5.5V
V
CC,
V
DD
=5.0V
Outline 24P2W-A(AFP)
1.27mm pitch 450mil SOP
(8.4mm X15.0mm X2.0mm)
SYSTEM CONFIGURATION
RAM
L
VOCAL
CUT
HPF
LPF
HPF
KEY CONTROL
MIX
BASS
MIX
L
R
CTL
NORM
SEARCH
MIX
BASS
MIX
R
VISS
VISS
MIC1
MIC AMP
MIC2
MIC AMP
MIC VOL
MIX
MIC VOL
M65381AP/FP
MIX
ECHO
ECHO VOL
MITSUBISHI
ELECTRIC
1
MITSUBISHI [ MITSUBISHI ELECTRIC SEMICONDUCTOR ]
