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some parametric limits are subject to change. p r e l i m i n a r y electric mitsubishi ( / 1 4 ) notice ; this is not a final specification. M65854FP mitsubishi sound processor ics karaoke 5 0 s s e e r r i i e e s s digital echo with microphone mixing circuit ? 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 and echo effect 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 ? the use of audio sw easy to control without microcomputer ? 5v single power supply the m65854 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. 1 ? supply voltage range ??????????cc = 4.5 ~ 5.5v rated supply voltage ??????????vcc = 5v description features recommended operating condition system configuration pin configuration 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 m 6 5 8 5 4 f p gnd mic1nfin alc1 mic1out mclkcont mic1volin mic2in mic2nfin mic2out mic2volin adintin adintout mic out alc2 vcc dacont lpf1in1 lpf2in1 lpf2out rout ps2 ps1 audsw1 audsw2 audsw5 echovol mic1in lpf1in2 26 25 24 lpf1out 23 22 ref adcont 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 daintin lpf2in2 daintout lout vcfil rin lin audsw3 audsw4 mic2vol lch input rch input mic lch output rch output vocal cut mix alc mix mix phase shifter surround echo vol echo source selector (l+r)/2 l r alc mix mic mic vol mic vol mic vol mic vol feedback vol mic1vol
some parametric limits are subject to change. p r e l i m i n a r y electric mitsubishi ( / 1 4 ) notice ; this is not a final specification. M65854FP mitsubishi sound processor ics karaoke 5 0 s s e e r r i i e e s s digital echo with microphone mixing circuit pin configuration 2 vcc 2 3 56 7 8 910 11 12 13 14 15 17 mclk lpf a/d d/a lpf main logic 16ksram 1/2vcc echo vol echo f.b(-2db) audio sw i/f gnd 16 18 19 20 21 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 26 27 25 24 23 22 alc mic vol mic vol (l+r) / 2 l r stereo phase shifter 1 a/d a/d a/d alc 4 echovol audsw5 audsw4 audsw2 audsw1 ps1 rout lpf2out lpf2in2 lpf2in1 daintout mic1in alc1 mic1nfin mic1out mic1volin mic2vol micout lpf1in1 lpf1in2 mic2in alc2 mic2nfin mic2out mic2volin adintout adintin adcont lpf1out ref gnd dacont daintin lout ps2 audsw3 mclkcont lin vcfil rin mic1vol vcc
some parametric limits are subject to change. p r e l i m i n a r y electric mitsubishi ( / 1 4 ) notice ; this is not a final specification. M65854FP mitsubishi sound processor ics karaoke 5 0 s s e e r r i i e e s s digital echo with microphone mixing circuit pin description pin no. symbol nam i/o function 1 2 3 4 5 6 7 8 9 10 11 13 14 15 16 17 18 19 20 alc1 mic1nfin mic1volin mic2in alc2 mic2out mic2volin to connect alc attack/recovery time setting capacitor i i mixing output of mic1 and mic2 lpf1in2 micout i i mic1out to connect mic2 mic2nfin i i lpf1in1 i lpf1out o adintout adintin adcont ref composes d/a conversion integrator with external capacitor mic1in i to connect alc attack / recovery time setting capacitor 21 gnd to connect mic1 to determine adaptive time constant of a/d convertor with adm system to connect 1/2 vcc output and filter capacitor microphone 1 volume input microphone 2 input alc2 control alc1 control microphone 2 negative feedback input microphone output low pass filter 1output a/d integrator output reference power output microphone 1 input microphone 1 negative feedback input microphone 1 input a/d control ground microphone 2 volume input microphone 2 input a/d integrator input low pass filter 1 input 2 low pass filter 1 input 1 pre-filter before a/d convertor for digital delay o o i 3 o mclkcont clock control controls built-in clock generation circuit with external r o vcc power supply 12 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 capacitor to reduce noise generated at time of volume change to connect low cut-off frequency of mic2 amplifier setting capacitor
some parametric limits are subject to change. p r e l i m i n a r y electric mitsubishi ( / 1 4 ) notice ; this is not a final specification. M65854FP mitsubishi sound processor ics karaoke 5 0 s s e e r r i i e e s s digital echo with microphone mixing circuit pin no. symbol nam i/o function daintin daintout lpf2in2 lpf2out rin vcfil rout i i lou audsw1 ps1 lpf2in1 lin i ps2 i audsw2 audsw3 audsw4 echovol dacont mic2vol 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 4 0 4 1 4 2 rch output phase shift input 1 vocal cut filte r rch mixing output lch output lch mixing output phase shift input 2 determines a constant at time of phase shift rch line input lch line input rch line input lch line input processes frequencies lower than the vocal band low pass filter 2 input 2 low pass filter 2 input 1 d/a control d/a integrator input d/a integrator output composes d/a conversion integrator with external capacitor phase shift sw source selector and auto vocal support sw : audio signal is selected by setting these switches to l or h low pass filter 2 output to determine adaptive time constant of d/a convertor with adm system post-filter after d/a conversion for digital delay source selector and auto vocal support sw echo effect volume control phase shift sw : on set to h,off set to l i o o i i 4 i mic2 volume control by dc voltage mic1 volume control o o mic1vol mic2 volume control mic1 volume control by dc voltage echo effect volume control by dc voltage i i i i audsw5 auto vocal support sw auto vocal support sw : on set to h,off set to l i
some parametric limits are subject to change. p r e l i m i n a r y electric mitsubishi ( / 1 4 ) notice ; this is not a final specification. M65854FP mitsubishi sound processor ics karaoke 5 0 s s e e r r i i e e s s digital echo with microphone mixing circuit electrical characteristics icc no zi symbol parameter test conditions limits unit circuit current maximum output voltage output noise voltage input impedance ma db dbv vrms min typ max no signal provided thd=10% 10 ( vcc=5v,f=1khz,vi=100mvrms,ta=25? unless otherwise noted ) gvo amplifier gain 47 thd1 0.1 3.0 microphone amplifier -72 voalc talcat msec gv i/o voltage gain volume max db total volume min alc operating voltage measurement : +2dbv c=4.7? 40 alc attack time vo = -17dbv distortion vo = -17dbv,with alc not operated % % thd2 distortion vi= -37dbv,with alc operated +2 dbv talcre alc recovery time c=4.7? 1.5 sec vomax gv=47db,f=100 to 5khz -68 1.3 k 0 attmax maximum attenuation thd distortion volume max thd=10% 0.15 vrms dbv % 5 35 20 0.5 6.0 -67 55 +4 2.0 -57 +3 0.30 5 25 0 1.0 1.2 -3 1.6 output noise voltage jis - a no -96 dbv -90 maximum input voltage vimax mic volume -72 gv i/o voltage gain volume max db volume min 0 attmax maximum attenuation thd distortion volume max thd=10% 0.15 vrms 1.1 dbv % -67 +3 0.30 -3 1.4 output noise voltage jis - a no -96 dbv -90 maximum output voltage vomax echo effect / echo feed back volume 1.3
some parametric limits are subject to change. p r e l i m i n a r y electric mitsubishi ( / 1 4 ) notice ; this is not a final specification. M65854FP mitsubishi sound processor ics karaoke 5 0 s s e e r r i i e e s s digital echo with microphone mixing circuit no symbol parameter test conditions limits unit output noise voltage min typ max td delay time 196.6 thd distortion digital echo msec -82 dbv td=196.6ms,30khzlpf vi=0mvrms,jis - a td=196.6msec,rg=620 2.0 % line gv i/o voltage gain db 0 thd distortion maximum output voltage output noise voltage thd=10% vomax jis - a, mic1volandmic2vol=0.0v no 0.02 vrms 1.7 % -95 dbv zi input impedance 20 khz 30khzlpf channel separation lin=400hz,rout jis - a cs -70 db vocal removal ratio vocal cut grej 18 db sets delay time with microcomputer. 6 -67 2.0 -3 1.1 -90 10 14 4.0 +3 0.04 30 digital echo gv i/o voltage gain db 0 maximum output voltage thd=10% vomax vrms 1.4 +3 -3 1.1 245.7 147.4
some parametric limits are subject to change. p r e l i m i n a r y electric mitsubishi ( / 1 4 ) notice ; this is not a final specification. M65854FP mitsubishi sound processor ics karaoke 5 0 s s e e r r i i e e s s digital echo with microphone mixing circuit absolute maximum ratings vcc vi pd topr tstg symbol name test conditions ratings units supply voltage circuit current input voltage operating temperature storage temperature 6.0 -0.3 ~ vcc+0.3 1.1 -20 ~ +75 -40 ~ +125 v v w ? recommended operating condition v il v ih symbol parameter test conditions limits units l input level h input level v v min typ max 0 0.7vdd 0.3vdd vdd vdd v 4.5 5 5.5 digital supply voltage 7 ?
some parametric limits are subject to change. p r e l i m i n a r y electric mitsubishi ( / 1 4 ) notice ; this is not a final specification. M65854FP mitsubishi sound processor ics karaoke 5 0 s s e e r r i i e e s s digital echo with microphone mixing circuit function control audsw5 phase shifter surround ?phase shifter surround control off control data l h on surround sw 8 ?source selector switch audsw2 source select (l+r) / 2 control data lch, monaural rch, monaural vocal cut ll ll lh lh audsw3 audsw1 hl l h l h l hhh stereo test mode ?microphone volume attenuation - dc voltage control (v) mic2vol(pin41) mic1vol(pin42) attenuation [db] 0 -3 -6 -9 -12 -15 -18 5.0 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.0 - dc voltage control (v) echovol(pin40) attenuation [db] +3 0 -3 -6 -9 -12 -15 5.0 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.0 ?echo effect volume attenuation audsw4 auto vocal support ?auto vocal support switch off control data l h on auto vocal support sw mic1vol ?digital echo output control off control data 0.0 (v) on digital echo output control mic2vol 0.0 (v) note: when the mic1vol and mic2vol are at the same time, the digital echo output control will automatically be the digital echo output off mode. please use the digital echo output control for mic sw.
some parametric limits are subject to change. p r e l i m i n a r y electric mitsubishi ( / 1 4 ) notice ; this is not a final specification. M65854FP mitsubishi sound processor ics karaoke 5 0 s s e e r r i i e e s s 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 150msec after powering up(vcc=5v and the capacitor connected to pin c=100?). by auto reset, operation mode setting become as follows. ?ource selector : stereo ?hase shifter surround control : off ?uto vocal support switch : off ?cho effect volume : ?icrophone volume attenuation : -10db (2) auto mute function the ic carries out auto mute function at the time of powering up in order to suppress shock noise that the digital delay may produce. ?t power up reset time mute time (400msec) 9
electric mitsubishi ( / 1 4 ) M65854FP mitsubishi sound processor ics karaoke 50 s e r i e s s e r i e s digital echo with microphone mixing circuit (3) clock oscillator circuit this ic incorporates a current control type clock oscillator circuit in it, thus providing circuit configuration just by connecting an rc for current control pin 1 (mclkcont). fully internal clock supply prevents occurrence of undesired radiation without affecting any external circuit. the oscillator frequency fck is following. fck = 4 mhz(rc=22k ) rc clock oscillator circuit clock frequency:fck 1 dc current 1 0 (4) microphone amplifier the gain(gv) and low cut-off frequency(fcl) of microphone amplifier are expressed as follows. 4 5 334k 1.5k 2 10k (typ) 10k mic r1 c1 0.22? ref gv=20log r1+1.5k+334k r1+1.5k fcl= 1 2 p ?r1+1.5k)?1 gv(max)=47db,fcl=225hz r1=0 ,c1=0.47? assuming gv=37db, fcl=220hz,for instance, the constants take the following values. r1=3.3k ,c1=0.15? fck = 4 mhz(rc = 22k ) delay time = 196.6msec note: the delay time (td) for echo is determined by the clock frequency (fck). delay time = 1/fckx48xn (n = the number of memory bits = 16384
electric mitsubishi ( / 1 4 ) M65854FP mitsubishi sound processor ics karaoke 50 s e r i e s s e r i e s digital echo with microphone mixing circuit 1 1 (6) input and output lpf for the digital echo the input and output lpf for the digital echo are configured as shown. figure below. 24k 24k 24k c2:1000pf c1:4700pf input output 13 14 15 the accuracy of the internal resistance of the ic is approximately ?0% cut-off frequency(fc) is given as follows. quality factor (q) is given by the following equation for long echo. fc= 1 c1 x c2 q= c1 c2 1 3 = 1 2 p x 24k x 4700pf x 1000pf 3.1khz 0.72 (figure of 0.7 is recommended) (5)alc level diagram -30 -20 -10 0 +2 10 -50 -40 -30 -20 -10 microphone amplifier gain settig=47db alc operating voltage setting range vo(dbv) vi(dbv) -60 -70 2 p x 24k x
electric mitsubishi ( / 1 4 ) M65854FP mitsubishi sound processor ics karaoke 50 s e r i e s s e r i e s digital echo with microphone mixing circuit release time 1.5s microphone input level output microphone signal detection on off on attack time 0s the timing of microphone input signal detection signal detection source selector mode on off lch monaural vocal cut (l+r)/2 (l+r)/2 same as above stereo rch monaural (l+r)/2 reference level (ref+20mv) (7) auto vocal support if you can not continue sing a song, the reference vocal from the source will support you automatically. 1 2
electric mitsubishi ( / 1 4 ) M65854FP mitsubishi sound processor ics karaoke 50 s e r i e s s e r i e s digital echo with microphone mixing circuit (9)following is the phase shifter block, which makes phase surround effect. source selector surround l r (l+r)/2 vocal cut stereo simulated stereo stereo surround 1 3 lch output rch output lch input rch input c(external)=0.022? 33 34 phase shifter surround the sound components of the same phase and same sound volume in the l and r channels are attenuated. this made also allows components with lower frequency than the vocal band to pass through the filter, to compensate insufficient low-frequency sound. lch input rch input lpf is formed by the internal r (20k ) and the external c, where c=0.15? , cut off frequency is 53hz. fvc= 2 p cr 1 =53.0hz c 0.15 30 vocal cut block (8) vocal cut support output
some parametric limits are subject to change. p r e l i m i n a r y electric mitsubishi ( / 1 4 ) notice ; this is not a final specification. M65854FP mitsubishi sound processor ics karaoke 5 0 s s e e r r i i e e s s digital echo with microphone mixing circuit application example 1 4 10 k 0.22 4.7 0.1 0.0047 0.001 0.068 0.1 100 0.1 0.1 0.068 0.0047 0.001 0.022 22 k 1 1 0.15 1 1 100 0.022 mic1in mic2in 1.0 10 k 0.22 4.7 0.1 1.0 audsw5 lout rout lin rin unit r: c:f echovol mic2vol mic1vol audsw4 audsw3 audsw2 audsw1 vcc 23 56789101112131415 17 mclk lpf a/d d/a lpf main logic 16ksram 1/2vcc echo vol echo f.b(-2db) audio sw i/f gnd 16 18 19 20 21 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 26 27 25 24 23 22 alc mic vol mic vol (l+r) / 2 l r stereo phase shifter 1 a/d a/d a/d alc 4

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