M65856

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 = ...