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M65856 Dataheets PDF



Part Number M65856
Manufacturers Mitsubishi
Logo Mitsubishi
Description DIGITAL ECHO
Datasheet M65856 DatasheetM65856 Datasheet (PDF)

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 Ster.

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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 PIN CONFIGURATION MIC SW MCLKCONT VALC MIC1IN ALC1 MIC1NFIN MIC1OUT MIC1VOLIN MIC2IN 1 2 3 4 5 6 7 8 9 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 DATA CLOCK LATCH PS2 PS1 VCFIL LOUT ROUT SOURCEOUT KEYCONIN RIN LIN VOL IN LPF2OUT LPF2IN2 LPF2IN1 DAINTOUT DAINTIN DACONT VCC GND ALC2 10 MIC2NFIN MIC2OUT MIC2VOLIN MICOUT LPF1IN1 LPF1IN2 LPF1OUT 11 12 13 14 15 16 17 18 19 20 21 RECOMMENDED OPERATING CONDITION Supply voltage range • • • • • • • • Vcc = 4.5 ~ 5.5V Rated supply voltage • • • • • • • • • • • • • Vcc = 5V ADINTOUT ADINTIN ADCONT REF SYSTEM CONFIGURATION KEY CONTROL IC M65847FP Lch INPUT SOURCE SELECTOR L R MIX PHASE SHIFTER SURROUND MIX Lch OUTPUT Rch INPUT (L+R)/2 VOCAL CUT Rch OUTPUT ALC MIC1 MIC VOL MIX ECHO MIC VOL FEEDBACK VOL ECHO VOL MIX ALC MIC2 MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M65856SP DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT PIN CONFIGURATION 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 VCC GND µ-COM I/F PHASE SHIFTER SURROUND LPF (L+R) / 2 L R STEREO D/A MIC SW ECHO VOL ECHO F.BVOL 16kbit SRAM MAIN LOGIC MCLK ALC MIC VOL ALC MIC VOL LPF A/D 1/2Vcc 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M65856SP DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT PIN DESCRIPTION Pin No. Symbol MIC SW MCLKCONT VALC MIC1IN ALC1 MIC1NFIN MIC1OUT MIC1VOLIN MIC2IN ALC2 MIC2NFIN MIC2OUT MIC2VOLIN MICOUT LPF1IN1 LPF1IN2 LPF1OUT ADINTOUT ADINTIN ADCONT REF Name Microphone SW Clock control ALC operating voltage setting terminal Microphone 1 input ALC1 control Microphone 1 negative feedback input Microphone 1 output Microphone 1 volume input Microphone 2 input ALC2 control Microphone 2 negative feedback input Microphone 2 input Microphone 2 volume input Microphone output Low pass filter 1 input 1 Low pass filter 1 input 2 Low pass filter 1 output A/D integrator output A/D integrator input A/D control Reference power output I/O I Function L: MIC OFF H: MIC ON Controls built-in clock generation circuit with external R To set ALC operating voltage according 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 – – to applied voltage I To connect MIC1 To connect ALC1 attack / recovery time – setting capacitor I O I I To connect low cut-off frequency of MIC1 amplifier setting capacitor To connect capacitor to reduce noise generated at time of volume change To connect MIC2 To connect ALC2 attack/recovery time To connect low cut-off frequency of MIC2 amplifier setting capacitor – setting capacitor I I I To connect capacitor to reduce noise generated at time of volume change O Mixing output of MIC1 and MIC2 I I O O I Pre-filter before A/D convertor for digital delay Composes D/A conversion integrator with external capacitor To determine adaptive time constant of – A/D convertor with ADM system – To connect 1/2 Vcc output and filter capacitor MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M65856SP DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT Pin No. Symbol GND VCC DACONT DAINTIN DAINTOUT LPF2IN1 LPF2IN2 LPF2OUT VOLIN LIN RIN KEYCONIN SOURCEOUT ROUT LOUT VCFIL PS1 PS2 LATCH CLOCK DATA Name Ground Power supply D/A control D/A Integrator input D/A integrator output Low pass filter 2 input 1 Low pass filter 2 input 2 Low pass filter 2 output I/O – – – I O I I O I I I I O O O Function 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 To determine adaptive time constant of D/A convertor with ADM system Composes D/A conversion integrator with external capacitor Post-filter after D/A convertor for digital delay Echo effect / Echo feed back volume input Lch line input Rch line input monaural input for external KEYCONTROL IC monaural output for external KEYCONTROL IC Rch output Lch output Vocal cut filter Phase shift input 1 Phase shift input 2 LATCH CLOCK DATA To connect capacitor to reduce nois.


M65855FP M65856 M65856SP


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