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d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP outline 36p2r system block diagram application features recommended operating conditions supply voltage range...vcc=7v to 9v rated supply voltage... vcc=8v vdd=4.5v to 5.5v vdd=5v 1 ind2 ind1 bass/mid/ treble fader u-com interface zero-cross detector circuit defp in1 defn in1 inc1 inb1 ina1 defp in2 defn in2 inc2 inb2 ina2 front rear non fader front rear non fader data clock fader non fader volume1 volume1 loudness volume2 volume2 master volume is composed of volume1 and volume2 + - input gain control defn out1 defn out2 input gain control bass/mid/ treble loudness non fader differential amp. differential amp. + - zero-cross detector circuit master volume is composed of volume1 and volume2 this ic can be used analog signal processing of power amp.front stage this ic can be used car audio system,home audio system and tv. this ic is unnecessary for outside putting cr by using scf for loudness and tone control. bass : +16db to -12db/2dbstep. f0,q=variable. f0=50hz,80hz,120hz q=1,1.25,1.5,2 mid : +12db to -12db/2dbstep. f0,q=variable. f0=700hz,1khz,2khz,10khz q=1.5,2 treble : +12db to -12db/2dbstep. f0=variable. f0=8khz,12khz loudness : f0=variable. f0=60hz,80hz,100hz build-in non fader volume +12db to -12db /2db step, - db build-in zero-crossing detector circuit for changing noise measure. build-in differential input and differential output build-in input selector (4 input + differential input) build-in input gain control 0db to +18.75db/1.25db step build-in master volume and fader volume (front,rear) volume : 0db to -83db , - db/1db step fader : 0db ,-1db,-2db,-3db,-4db,-6db,-8db,-12db,-16db,-20db,-30db,-45db,-60db,- db/16 step serial data control of 2 lines formula.
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP + 12db 12db + 2
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP pin description pin no. symbol ref defn in1 ina1 function 1 2 3 4 vol in1 5 6 7 8 tone out1 fader in1 9 10 11 12 13 14 15 16 output pin of tone negative input pin of differential amp. defp in1 positive input pin of differential amp. input pin of channel 1 for input selector sw input pin of volume2 rear out1 output pin of fader volume (rear) front out1 output pin of fader volume (front) data input pin of control data. it synchronized at clock and inputted data sel out1 output pin of input selector input pin of volume1 inb1 inc1 ind1 non fader out1 output pin of non fader volume gnd ground pin 17 18 defn out1 output pin (-) of differential amp. n.c. n.c. pin 3 signal ground of ic. grounding about 10uf
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP pin no. system clock front out2 rear out2 function 21 22 23 24 25 26 27 28 vol in2 sel out2 ind2 inc2 29 30 31 32 33 34 35 36 analog power supply pin clock input pin for serial data transmission output pin of fader volume (front) input pin of volume 2 input pin of volume1 output pin of input selector ina2 output pin of fader volume (rear) vcc fader in2 tone out2 output pin of tone inb2 defn in1 negative input pin of differential amp. defp in1 positive input pin of differential amp. input pin of channel 2 for input selector sw non fader out2 output pin of non fader volume vdd digital power supply pin 20 19 defn out1 output pin (-) of differential amp. n.c. n.c. pin 4
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP 5
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP electrical characteristics (ta=25 c,vcc=8v,vdd=5v,input gain/volume/tone/fader=0db,loudness=off,unless otherwise noted.) 6 unit symbol parameter test conditions limits min typ max ma circuit current icc g(bass)b g(bass)c g(tre)b g(tre)c a tt (fed) thd cs volume maximum attenuation quantity maximum input voltage boost quantity (bass) channel separation total harmonic distortion maximum input voltage fader maximum attenuation quantity crosstalk between channels boost quantity (treble) cut quantity (bass) cut quantity (treble) thd=1% f=100hz f=10khz f=100hz f=10khz thd=1% f=1khz,vo=0.5vrms f=1khz,din-audio -90 0 1.8 16 -12 12 -12 -90 -90 db vrms % db db db db db db vrms db output noise voltage uvrms rg=0,din-audio 3.5 12 att(vol)= - db rg=0,din-audio att(vol)= - db bw:400hz to 30khz g(mid)b g(mid)c boost quantity (mid) cut quantity (mid) f=1khz f=1khz -12 db db 12 pass gain g v db 0 vi=1vrms , f=1khz,din-audio f=1khz , din-audio vi=1vrms , f=1khz gv(loud) loudness voltage gain vol1= -30db , vol2=0db db vno 2 vno 1 v om v im a tt (vol) f=1khz , din-audio no signal setting att(fed)= - db ct input selector crosstalk db loudness on , f=100hz att(vol)= 0db input gain control gv(gain)= +18.75db 18.75 db gv(gain) -75 0.01 13 +2 -2 -80 +2 -2 19 13 -9 -15 -9 -15 -9 -15 15 9 15 9 -80 1.8 0.05 -75 -60 16 10 21.75 15.75 f=1khz,din-audio vno 3 bypass setting rg=0,din-audio 40 5 common mode rejection ratio cmrr 50 db 2,3pin/34,35pin common mode signal input setting loud_vol= -20db a tt (vol)
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP connection of data and clock data clock data signals are read at rising edges of clock. latch signals are read at rising edges of clock. latch signal "h" d1 d2 d0 d3 d32 d33 d34 7 digital block direct current characteristic v v il unit symbol parameter test conditions limits min typ max v ih i il i ih "l" level input voltage "h" level input voltage "l"level input electric current "h" level input electric current data,clock pin data, clock pin v=0v i v=5v i 0 4.0 1.0 -10 10 10 u a 5.0 vdd=5v setting
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP clock and data timing clock data 25% 75% t r t f t cr t whc t wlc t sd t hd 8 digital block alternating current characteristic unit symbol parameter limits min typ max t cr t whc t wlc t r t f t sd t hd clock cycle time clock pulse width ("h" level) clock pulse width ("l" level) clock rise time clock hall time data setup time data hold time 4 1.6 1.6 0.8 0.8 0.4 0.4 us
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP 9
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP d4 d5 0db -2db -4db 1 1 0 0 1 1 ch1 ch2 d10 d11 attvb2 attva2 fixed to 0db when 0db -12db setting. d5 d6 0db -1db -2db -3db 1 0 0 1 0 0 1 1 ch1 ch2 d12 d13 attva2 volume 1 code -6db 0 0 att vb1 d7 d8 0db -8db -16db -24db -32db -48db -56db d6 0 0 0 1 0 0 0 0 0 1 0 1 0 0 1 1 0 0 1 1 0 0 1 1 1 0 0 0 0 0 0 1 0 1 1 1 d9 - db -40db -2db -4db -6db -10db -12db -14db 1 0 1 1 0 0 1 1 1 1 0 1 1 0 0 1 0 0 0 1 1 1 1 0 ch1 ch2 d1 d2 d0 d3 volume 2 code attva1 d8 d9 0db -4db -8db -9db -10db -12db -16db d7 0 0 0 1 0 0 0 0 0 1 0 1 0 0 1 1 0 0 1 1 0 0 1 1 1 0 0 0 0 0 0 1 0 1 1 1 d10 -20db -11db -1db -2db -3db -5db -6db -7db 1 0 1 1 0 0 1 1 1 1 0 1 1 0 0 1 0 0 0 1 1 1 1 0 ch1 ch2 d1 d2 d0 d3 -24db -28db 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 d11 d4 timer setting code d25 d26 5ms 10ms 15ms 20ms 1 0 0 1 0 0 1 1 timer 10 attvb2 fixed to 0db when 0db -16db setting.
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP tone code 12db 10db 6db 4db 2db 0db -2db -4db -6db -8db -10db -12db 8db d17 d18 d16 treble d15 0 0 0 1 0 0 0/1 0 0 1 0 1 0 1 1 0 0 1 0 0 1 1 1 0 0 0 0 0 1 0 0 0 1 0 1 0 1 1 0 0 1 0 0 1 1 1 1 1 1 1 1 1 d10 d11 d9 mid d8 bass d2 d3 d1 d0 12db 10db 6db 4db 2db 0db -2db -4db -6db -8db -10db -12db 8db 0 0 0 1 0 0 0 0 0 1 0 1 0 1 1 0 0 1 0 0 1 1 1 0 0 0 0 0 1 0 0 0 1 0 1 0 1 1 0 0 1 0 0 1 1 1 1 1 1 1 1 1 14db 1 1 1 0 16db 0 0 0 1 tone f0,q control code bass f0 control d4 d5 f0=50hz f0=80hz f0=120hz 1 1 0 1 1 0 treble f0 control d19 f0=8khz f0=12khz 1 0 bass q control d6 d7 q=2 q=1.5 q=1.25 q=1 1 1 0 1 1 0 0 0 mid q control d14 q=1.5 q=2 1 0 mid f0 control d12 f0=700hz f0=1khz 1 0 f0=2khz 1 d13 1 1 0 f0=10khz 0 0 11 loudness fo control d30 d31 f0=60hz f0=80hz f0=100hz 1 1 0 1 1 0 loudness fo control loudness volume code d23 d24 -6db -8db -12db -14db -16db -18db -20db -22db -24db -26db -28db -30db -10db 1 1 1 0 0 0 0 1 d22 loudness d21 -4db -2db 1 0 1 0 1 0 1 0 1 1 0 0 1 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 0 0 0 0 0 - db 0 0 0 0 0 0 please refer to 21,22 page for loudness gain setting. *
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP d23 d24 -2db -3db -6db -8db -10db -12db -14db -16db -20db -30db -45db -60db -4db 1 1 1 0 0 0 0 1 d22 fader d21 -1db 0db 1 0 1 0 1 0 1 0 1 1 0 0 1 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 0 0 0 0 0 - db 0 0 0 0 0 0 fader code selector code d14 d15 ina inb inc ind 1 0 0 1 0 0 1 1 0 0 d16 0 0 0 0 1 differential input selector input gain control code d19 d20 2.50db 3.75db 6.25db 7.50db 8.75db 10.00db 11.25db 12.50db 13.75db 15.00db 16.25db 17.50db 5.00db 1 1 1 0 0 0 0 1 d18 d17 1.25db 0db 1 0 1 0 1 0 1 0 1 1 0 0 1 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 0 0 0 0 0 18.75db 0 0 0 0 0 0 input gain control non fader code d28 d29 +8db +6db +2db 0db -2db -4db -6db -8db -10db -12db +4db 0 0 1 1 0 1 0 0 d27 att d26 +10db +12db 0 1 0 1 0 1 0 1 1 0 0 1 1 1 1 0 0 0 0 0 0 1 1 1 1 1 0 1 1 1 0 0 1 0 1 0 0 0 0 0 0 0 0 0 1 1 0 1 - db 12
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone c ontrol mitsubishi sound processor ics M61508FP loudness,tone control frequency characteristic 13 fig.1) loudness frequency characteristic fig.2) loudness frequency characteristic(vol=-30db,loudness= -20db,fo=variable) fig.3) bass frequency characteristic(fo=50hz,q=2,gv=variable ) fig.4) bass frequency characteristic(gv=+16db,fo=variable,q= 2)
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone c ontrol mitsubishi sound processor ics M61508FP 14 fig.8) mid frequency characteristic (gv=+12db,fo=1khz,q=vari able) fig.7) mid frequency characteristic (gv=+12db,q=2,fo=variabl e) fig.5) bass frequency characteristic (gv=+16db,q=variable, f o=50hz) fig.6) mid frequency characteristic (fo=1khz,q=2,gv=variable )
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone c ontrol mitsubishi sound processor ics M61508FP fig.9) treble frequency characteristic (gv=variable) fig.10) treble frequency characteristic (gv=+12db,fo=variabl e) 15
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP zero-crossing detection circuit in the conventional serial data control type volume, analog sw inside switches over simultaneously with latch condition detector. and the operation completes. in this case the changing noise occurs at the time of latch condition detector, the analog sw switches over (zero-cross detector strobe occurs) in the moment that the analog signal cross signal ground (1/2vcc). latch conditions d32 d33 d34 noise factor when signal is present audio signal signal gnd(1/2vcc) latch conditions d32 d33 d34 signal gnd (1/2vcc) analog sw changing zero-cross detector strobe (form signal from inside ic) other,in the case of audio signal isn't inputted (no signal),even if only zero-cross detector circuit detects latch condition, analog sw doesn't switch over for the audio signal never cuts signal ground (1/2vcc). the time function switches the analog sw after some time t. the timer time can setting with the serial data of 5ms,10ms,15ms,20ms. clk data clk data 1. meaning of zero-crossing detection circuit 16
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP "or" of [zero-cross detector strobe] or [compulsion sw of timer circuit] moves internal analog sw . when for example, suppose that it set to t=10msec. latch conditions d32 d33 d34 sw changing zero-cross detector strobe (form signal from inside ic) in case of pattern1, the zero-cross detector strobe occurs with the zero-cross detector function, and sw is switched. but in case of pattern2, the timer function switches the analog sw after t=10msec, for the audio input signal didn't cut the signal ground after t=10msec which were set with the timer. timer setting time setting for frequency band of input audio signal. t=10 msec pattern 1 pattern 2 sw changing clk data audio signal audio signal zero-cross detector strobe (form signal from inside ic) 2. connection of zero-crossing detector and timer setting 17
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP pattern 1 clk data audio signal 3. timer setting system latch conditions d34 t=10 msec f= 2 t 1 = 2 10msec 1 =50hz in case of timer setting time/t =10 msec setting clk data audio signal latch conditions d34 t=10 msec f=30hz pattern 2 audio signal f=30hz the timer setting time t makes t=20msec (zero-cross detect of 25hz is 100%) maximum and it is setting by it. 18 audio signal 50hz < 50hz > zero-cross detector 100% 100% 0% upper fig. pattern 1 pattern 2
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP M61508FP has the function to make the serial data invalid until it generations the zero-cross detector strobe in ic, after the latch condition detected. d34 latch conditions d34 latch conditions data clk "a" "b" timer setting t audio signal sw changing for data "a" 4. connection of data transmission and timer setting zero-cross detector strobe (form signal from inside ic) d0 to d33 d0 to d33 serial data transmission interval it 19 in case of upper figurative.the order of data "b" is invalid. * in to make the serial data transmission interval it from mcu(microcomputer) to M61508FP serial data transmission interval=it > timer setting= t the reading error of the data doesn't occur. serial data transmission interval it =interval of between latch condition and latch condition *
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP 20
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone control mitsubishi sound processor ics M61508FP loudness filter (gv=0db) 2 loudness gain setting lower figure is structure of loudness circuit. 10 volume 1 loudness volume r r r r vout vin v1 v2 output volutage (vout) of setting structure of upper figure it is noted as volume1output volutage = v1, loudness filter output voltage = v2, vout and gv (boost quantity) is given at the lower formula gv = 20 log ex.) vin = 1vrms/60hz,volume1= - 30db, output volutage and boost quantity of 60hz of loudness volume = -20db setting from : volume1,loudness volume attenuation quantity become : v1 = 31.6mvrms v2 = 100mvrms if the subsitudes the equation for the upper formula, the following equation is given : (v1 + v2) vin - (volume 1 attenuation quantity) (db) vout = v1 + v2 (vrms) vout = 31.6m + 100m in the item,the loudness gain setting example is shown, when volume1 fixation and doing the loudness volume variably. please refer to plan. gv = 20 log (31.6m + 100m) 1 - (-30db) = 12.4db is obtained. =131.6mvrms frequency (hz) gv volume 1= -30db 21
d-61508-98-c electric mitsubishi ( /22) the electric volume of build-in non fader volume with tone c ontrol mitsubishi sound processor ics M61508FP loudness gain 1 volume1= -10db loudness volume -2db -4db -6db -8db -10db -12db -14db -16db -18db -20db -22db -24db -26db -30db - db 10.9db 9.5db 8.2db 7.1db 6.0db 5.1db 4.2db 3.5db 2.9db 2.4db 1.9db 1.6db 1.3db 1.0db 0db -28db 0.8db 22 2 volume1= -20db -2db -4db -6db -8db -10db -12db -14db -16db -18db -20db -22db -24db -26db -30db - db 19.0db 17.3db 15.6db 13.9db 12.4db 10.9db 9.5db 8.2db 0db -28db 7.1db 6.0db 5.1db 4.2db 3.5db 2.9db 2.4db loudness volume loudness gain 3 volume 1=-30db -2db -4db -6db -8db -10db -12db -14db -16db -18db -20db -22db -24db -26db -30db - db 28.3db 26.4db 24.5db 22.7db 20.8db 19.0db 0db -28db 17.3db 15.6db 13.9db 12.4db 10.9db 9.5db 8.2db 7.1db 6.0db loudness volume loudness gain loudness gain setting example

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