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PDF M65856SP Data sheet ( Hoja de datos )
| Número de pieza | M65856SP | |
| Descripción | DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT | |
| Fabricantes | Mitsubishi | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de M65856SP (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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MITSUBISHI SOUND PROCESSOR ICs
M65856SP
DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT
DESCRIPTION
The M65856 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, TVor 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 interface terminal for external keycontrol IC
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
PIN CONFIGURATION
MIC SW 1
MCLKCONT 2
VALC 3
MIC1IN 4
ALC1 5
MIC1NFIN
MIC1OUT
MIC1VOLIN
6
7
8
MIC2IN 9
ALC2 10
MIC2NFIN 11
MIC2OUT 12
MIC2VOLIN 13
MICOUT 14
LPF1IN1 15
LPF1IN2 16
LPF1OUT 17
ADINTOUT
ADINTIN
ADCONT
18
19
20
REF 21
42 DATA
41 CLOCK
40 LATCH
39 PS2
38 PS1
37 VCFIL
36 LOUT
35 ROUT
34 SOURCEOUT
33 KEYCONIN
32 RIN
31 LIN
30 VOL IN
29 LPF2OUT
28 LPF2IN2
27 LPF2IN1
26 DAINTOUT
25 DAINTIN
24 DACONT
23 VCC
22 GND
SYSTEM CONFIGURATION
KEY CONTROL IC
M65847FP
Lch
INPUT
Rch
INPUT
MIC1
MIC2
SOURCE
SELECTOR
L
R
(L+R)/2
VOCAL
CUT
ALC
MIC VOL
ALC
MIC VOL
MIX
PHASE
SHIFTER
SURROUND
ECHO
FEEDBACK
VOL
ECHO VOL
MITSUBISHI
ELECTRIC
MIX
MIX Lch
OUTPUT
MIX Rch
OUTPUT
1 page  
MITSUBISHI SOUND PROCESSOR ICs
M65856SP
DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT
ELECTRICAL CHARACTERISTICS
Symbol
Parameter
(Vcc=5V,f=1kHz,vi=100mVrms,Ta=25°C Unless otherwise noted)
Test conditions
Limits
Min Typ Max
Unit
Icc Circuit current
No signal provided
– 40 88 mA
Gvo Amplifier gain
Vo = -17dBV
44
THD1 Distortion
Vo = -17dBV,with ALC not operated
THD2 Distortion
ALC operating voltage
VoALC measurement error
TALCAT ALC attack time
Vi= -37dBV,with ALC operated
measurement : -10 to +3dBV
C=4.7µF
–
–
-3
25
TALCRE ALC recovery time
C=4.7µF
1.0
VoMAX Maximum output voltage THD=10%
1.3
No Output noise voltage Gv=47dB,f=100 to 5KHz
Zi Input impedance
–
5
Gv I/O voltage gain
Volume max
-3
ATTmax Maximum attenuation Volume min
THD Distortion
Volume max
–
–
ViMAX Maximum input voltage THD=10%
1.4
No Output noise voltage JIS - A
Gv I/O voltage gain
Volume max
ATTmax Maximum attenuation Volume min
THD Distortion
Volume max
–
-3
–
–
VoMAX Maximum output voltage THD=10%
No Output noise voltage JIS - A
1.1
–
MITSUBISHI
ELECTRIC
47 50 dB
0.5 1.5 %
3.0 6.0 %
0 +3 dB
40 55 msec
1.5 2.0 sec
1.4 – Vrms
-68 -57 dBV
10 20 KΩ
0 +3 dB
-72 -67 dBV
0.15 0.30 %
1.7 – Vrms
-96 -90 dBV
0 +3 dB
-72 -67 dBV
0.15 0.30 %
1.4 – Vrms
-96 -90 dBV
5 Page 
MITSUBISHI SOUND PROCESSOR ICs
M65856SP
DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT
FUNCTION DESCRIPTION
(1) AUTO RESET
Settings are reset automatically when the IC is powered up. The reset state is
automatically canceled approximately 120msec after powering up(Vcc=5V and the
capacitor connected to pin C=47µF).
By auto reset, operation mode setting become as follows.
• Delay Time Control : 104.0msec
• Source Selector : stereo
• Phase Shifter Surround Control : OFF • Auto Vocal support Switch : OFF
• KEYCON pass/through SW :ON
• Microphone Mixing Switch : OFF
• Echo effect Volume : -∞
• Echo Feed back Volume : -∞
• Microphone Volume Attenuation : -9dB
(2) AUTO MUTE FUNCTION
The IC carries out auto mute function at the time of powering up, delay time setting
change, in order to suppress shock noise that the digital delay may produce.
• At power up
Reset Time
Mute time
(400msec)
• At delay time setting change
Delay signal before change
Delay signal after change
Mute time
(400msec)
MITSUBISHI
ELECTRIC
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet M65856SP.PDF ] | |
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