M65847FP MITSUBISHI | Alldatasheet

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| MITSUBISHI SOUND PROCESSOR ICs |

DESCRIPTION

The M65847 is Complementary Metal Oxide Semiconductor Integrated Circuit used to control the key of music in karaoke players. This device is suitable for providing a karaoke system such as a CD radio cassette recorder, a mini component stereo system or VCR, with a key control function. FEATURES . WIV/O low-pass filter, A/D, D/A converters and control logic circuit which are required for digital key control are builtin to allow one- chip configuration of a digital key controller. Built in 16K-bit RAM IHS modes are selectable for control: self mode, easy mode and MCU mode. Outline 28P2W-A (FP) ‘Self mode: Key conversion by push switch 1.271 pitch 450mil SOP (8.4mmx 17.5mm% 2.0mm) Easy mode: Key conversion by parallel data, MCU mode: Key conversion by serial data Built-in clocks without an external circuit. Built-in auto reset circuit (The IC reset as power Is turned on.) [Single power supply (SV) RECOMMENDED OPERATING CONDITION Outline 28P4B (SP) SYSTEM CONFIGURATION M65847FP/SP. i a INPUT vecet 4 CONTROL Rech M@™ 6249626 0021974 b13 MITSUBISHI oe iies 3-73

MITSUBISHI SOUND PROCESSOR ICs M65847FP/SP DIGITAL KEY CONTROLLER PIN CONFIGURATION (TOP VIEW) ‘ADCONT [28] MoDE2 paconT: [2] MODE dacont2 [3] 26] DAINT OUT KEYOOWN [4 | [25] DAINT IN xevur [5] =a] ADINTOUT ciKoKeyo [6] z [23] ADINT IN ‘SDATAKEYt 3 [22] LPF1 IN sonKev2 [8] 3 {21} LPF1 OUT STROBEKEY3 [8 | go [20] HPF IN keys 0} = RB) HPF our keys [ii] [78] LPF2 IN REF LPF2 OUT ‘eno [13] [16} Mix IN vec [14] [15} Mix OUT Outline 28P2W-A (FP) 28P4B (SP) IC INTERNAL BLOCK DIAGRAM ADINT OUT DACONT! DAINT OUT LPFI IN LPF1 OUT ADCONT | ADINT IN IDACONT2| DAINTIN LPF2IN LPF2OUT voc LPEL LPE2 |

1 REF AD REF :

| | REF wevec | * pom | rer GENERATOR REF hat mal HPF IN HPF OUT CLKO |MODE2] KEYUP] SCK | KEY4 MIN = MIXOUT — GND. IKEYO mKEY2 MODE! KEY SDATA STROBE KEYS DOWN /KEY! ‘KEYS M™ 6249826 0021975 SST eee 3-74 ELECTRIC

MITSUBISHI SOUND PROCESSOR ICs M65847FP/SP DIGITAL KEY CONTROLLER TT rr ee PIN DESCRIPTION ‘AID control Determines adaptive time constant for A/D conversion by ADM system DACONTS | DA Tcontrol | =| Determines adaptive time constant for D/A conversion by | @ | DacoNT2 | D/A 2 control | — _| ADM system 1ECMOS | Key conversion | Clock output @ [rewom [room not |r” [oemeee CMOS | Keyconversion | controledby L H L H kd KeyuP Key up 50kQ J | (up) setting pins® — oe, 320 450 2 CLKOIKEYO | Clock outpui/Key0 ‘O:CMOS and ®. Wz hz MHz EOMOS Sem _ : SDATAKEY! | Serial data/Keyt soka 4 | Key setting status | Key setting input: | Serial data lo:cmos | cutput: input soko || LEDs can be Shift clock can loc ® | soKmeve Shift clockiKey2 ns driven directly. | Voltage applied | input Taisscamn| Key Setting status | to each pin sets a canbe indicated | key @ _| STROBE/KEY3 | Svobe/Key3 50kQ 4 | by connecting sire” |O:CMOS LEDs to outside vemos aKa | rewos 2a | | ® | | Reference =| Analog references taves—SCSCSC* | ® | a lO-Operatonsl MIX OUT [mown ‘ta ‘Combine key-controlled low-pass signal and through high- ass signal Forms Post-fiters following D/A conversion for key contol |:Operational Forms High-pass filter it t LPF1 OUT Low-pass filter 1 output Forms Pre-fter precedent to A/D conversion for key control |e | LPF IN Low pass titer 4 input : : ADINTIN. | A” integrator input Forms A/D conversion integrator with extemal C ADINT OUT — | A/D integrator output Forms D/A conversion integrator with external C DAINTOUT | D/A integrator output | © [woner | woder Yienossaos| Sotto | Sotto | Saw] L_@ | wove2 | Modea_ Yrowostons] Sotto, 1 Settou. | Seto]

4 With pull-down resistor

M™@ 6249826 0021976 456 a MITSUBISHI ae MEBs 3-75 a ee

MITSUBISHI SOUND PROCESSOR ICs M65847FP/SP DIGITAL KEY CONTROLLER ABSOLUTE MAXIMUM RATINGS (Ta=25°C, unless otherwise noted) [Syrbo [Parameter Ratings at] [Voc “| Maximum supply votage | —se0 «|S [tcc | Creutcurent 10 | [vi [put votage a veers [Ps | Power dissipation | 1.05 (SPVIZFP) | WI RECOMMENDED OPERATING CONDITION Parameter Test conditions ad a | ves | Suppyvatage | Cd 4 P80 Ts | | Wit _| Inputvotiage ("H” level) [pin@@@ serial data input | vooa|- | voc] Me | patvonage (“NT evel [pin @@ serial detainput | 0 | — | 02 | ELECTRICAL CHARACTERISTICS (Vco=5V, f=1kHz, Vi=100mVrms, FO, Ta=25°C, unless otherwise noted) Parameter Test conditions [srt | Paar | totter | | [ice | Groutourent i Noma | 0 || me [ov | Votagogan | Cd Tt 8 | [THO | Outputdstorion | Vot0Onivms, S0KzLP.F | — ‘| is | 3} % | [No | Outoutroise votags ISA | | 80 | | ew | | Vonax | Maximum ouputvoltage | THO=10% ————SSSSSS*d 7 | 15 | — | vies | [tok | Clocktreauency i 8 | | 8 |e | [tox | Houtputeurent ——*di pn ©OOOOO [Vouaw | — [| ao] +1 ma | [tox | Loutputcurrent | Self mode. [vostov | @ | 18 | — [ma | pn ©OOOO [25 [50 | woo [ka | [re a pin ODDS [10 [20 [40a] M@® 624982b 0021977? Jeo tee 3-76 ELECTRIC

MITSUBISHI SOUND PROCESSOR ICs DIGITAL KEY CONTROLLER OLE FUNCTION DESCRIPTION 3 Easy mode (1) Kay setting 1. Operation control in " Operation control is provided inthe folowing 3 modes: Pate in ntred into pin @ KEY1 to pin 6) KEYS can be used (1) Self mode (2) Easy mode [rer sotina]D KEY 1]@ KEV2|@ KEVS]O® KEY4|OD KEYS| (3) Microcomputer mode pea [ow Pow fa Poe tw | A MODE SETTING METHOD Se Se [Eiooe1 [Goose] woe | Koysonvenionnamed | fet} af a | easy ara cata Peet Patbeabtladatd a a, Cee oe te LK] Test | Testmode(normaty not availabe] (2) Clock output 2. Self mode Data entered into pin @ KEYDOWN and pin@ KEYUP can be (1) Key setting used to output square-wave clocks from pin @) CLKO. Akkey can be set using the push switch connected to pin @ KEYDOWN and pin @ KEYUP. @ © [,Saro EYDOWN| KEYUP [fckesiy KEY KEY i DOWN UP KEYO KEY! KEY2 KEYS KEY4 KEYS pt [ie [oF | Key setting status output for .FO:L, other than FO: r vownp uP of _s] af a] at + Clock for M65830AP/CP sw t (digital echo IC) Clock for M65631P/AP 8 z } (Gigital echo 1C) ‘The key goes down by one (chromatic) each time the DOWSW is Pushed, and goes up by one (chromatic) each time the UPSW is (3) LED indication Pushed. Once going down to -4, the key remains unchanged even ute me enters igo ental see Jo outside as shown below if the DOWNSW is pushed. Also, once going up to +4 the key OW ‘alton of key setting status. temains unchanged even if the UPSW is pushed. Keeping on KEY KEY pushing elther switch changes the key in chromatic every 524msec OWN UP KEYO KEY! KEY2 KEYS KEYS KEYS (lck-8MHz). O-© O-—MO-O)-O) Pushing both DOWNSW and UPSW simultaneously sets the key ik rich FE 5 to +0. oe] od] ob! ob] ov The switch input anti-chattering time is 16msec (fek=@MHz). 93 Pet oe Ca cA wa ca a (2) LED indication of + aries Connecting LEDs to outside as shown previously allows LED indication of key setting status through the outputs of pin @) KEYO to pin ) KEYS can be used to set a key. 3 8 S When the LEDs go on, cutrent flows into the ‘extarnal | level sating, not into the IC. Thus, feovsetes] @KEVO[D KEVH[@ KEVZ]® KEV KEYA|D KEYS] gay mode Provide the L side with LED dive capably a (1) key setting pees [wa TT} Seviat data from the microcomputer allows key setting. pee [a [oe [iy [ow [a] pin@® pea [ae Tae Tw Te) Soars Ko X01 X02 X0IXI#XIEXDHXOT a a —TARARAARAAS pee ta [Tw Tee Tae] 8K A pin® Leet Dee ee { oot Data is taken inside at the falling edge of SCK and the last- ® 3 4 indication acked 8 bits are latched at the raising edge of STROBE. es M@@ 6£2458eb 0021976 2bo MITSUBISHI ae ELECTRIC 3-77 a Se

MITSUBISHI SOUND PROCESSOR ICs M65847FP/SP “ DIGITAL KEY CONTROLLER Se ed tlcinentceeiaelsshceetatil (2) Data format (3) Clock output Like the easy mode, data entered into pin @ KEYDOWN and pin @) |___Key setting _| KEYUP can be used to output square-wave clocks from pin © CLKO. | F207 TK a a @ [,OaKo [rewens| J ra | 7a a a a OWN|_KEYUP. : pore | 7 tu ta Pa Pete L Clock for M65843P/AP ns oo Sooke | Feit [7 Clock for Mé5830AP/CP ee | | L [ss | (Gigital echo IC) | Fee | fee [TH {ae toupee | Glock for M65831P/AP a | (Gigital echo IC) J Feo | fe Tu] ttatate | ° [Fes [oes Tu Pepa Teta] [rea | Rs TRH Pe Pa Tt Tt | Gy patainput timing | Fs | ms [HR [i fe Ta Ta] tie [ Fee | me TH Pepe Taye ly Dea pore Ta Tepe pe TH | pn x) [Fo |ropatepetyete | Sara Ror foro [ora Te yw Pw Ta A ; i ea ae an® NA [roa [ena Pepa Pa Pepe | a ad F [es [esp Pe tate tata] yy o— || [roe [ree [eta Te Ta Tt} Strose. A Ia [e-7 [ey Te Ta Pepe ya] i a ee a [r-9 [OO Ae a a poroa [ 7 ep Pa Pa Sa OO pene [7 fete ta fe fe | fa [parse time [= [ = [500 [ ns | pena [7 ope pepe pa fe | Pep atatarime || =~} 800 [ns] poraie [ 7 a a aT scx clock wien | 50 Tt — Tone] pe-w [7 | [4 | scx “1” pulse wish | 100| - | — | ne | [roo Yo ee) is TscK “Hn putse width 1100 |= t= Tons | | ts [SDATAsetuptime | 100 [twa | — | ns | | 7 | SDATAno time | too [we | =F ns | | ta | STROBE rise holdtime | 200 | = [= Tons | - [___Modeseting [ps [ps [07 ] [4g | STROBE “H” pulse width | 100 |_- | — | ns _| [_vsc | H | [ t10 | scksetuptime [100 | = = Tins woo ref = | | Mute | Mute ON | [ oH | oy cont cuput mute] Muto OFF | Test \\aebled) (5) Clock oscillator circuit [Normal | The M65847 incorporates a clock oscillator circuit in it, thus allowing supply of master clocks without an extemal circuit. There are two major modes to change the key; VMC (variable The oscillator frequency is: music control) and VSC (variable speech control). fck=6MHz VMC provides relatively small variable range but maintains high sound quality, which is mainly used Key.control orchestra music for, Reset ‘singing (callad KARAOKE). On the other hand VSC provides lower The M65847 is automatically reset when the power is turned on, sound quality but variable key range as wide as +1 octorve or —_and is automatically canceled nearly 120msec later. more, which is used key compensation in reproduction of source OVA converter output (pin @ DAINT OUT) after key control is Microcomputer mode... Key FO, VMC, Mute OFF mM 6249426 0021979 175 Ml MITSUBISHI 3-78 ate MRS

MITSUBISHI SOUND PROCESSOR ICs M65847FP/SP DIGITAL KEY CONTROLLER $$ nian key conrriontier TYPICAL CHARACTERISTICS, THERMAL DERATING CIRCUIT CURRENT (MAXIMUM RATING) VS. SUPPLY VOLTAGE 25 80 se. TT] ee & 20 ta LTT Ty st | tt) § Soccer g § a # of {tT ttt PN Seco gos sy 5 oer | tt | SS ttt Tt TT | °% 25 50 75 100 125 3 4 5 6 7 AMBIENT TEMPERATURE Ta (°C) SUPPLY VOLTAGE Vcc (V) OUTPUT NOISE VOLTAGE MAXIMUM OUTPUT VOLTAGE VS. SUPPLY VOLTAGE VS. SUPPLY VOLTAGE = 25 Ee i=( = fiz -60 = 20 iz L.P.F.

2 CECT j CPA

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8 CCE 8 SCT Tr

@ “CCCP re BCA a oT TET 2 3 4 5 6 7 2 3 4 5 6 7 SUPPLY VOLTAGE Vcc (V) ‘SUPPLY VOLTAGE Vee (V) TOTAL HARMONIC DISTORTION g VS. OUTPUT VOLTAGE id s0kH2 Ler, Ete} z ren a

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° Se 3 vo LAR g . PSS & EERE SSR z Co oe a 6 ot CUM TO F 10m 100m 1 10 OUTPUT VOLTAGE Vo (V) SSSSSSSSSSSSSSSSSSS M@™ 6249826 0021980 917 eines ELECTRIC 3-79 EE EO...

MITSUBISHI SOUND PROCESSOR ICs M65847FP/SP DIGITAL KEY CONTROLLER ean ak th eehteiiny APPLICATION EXAMPLE 1. Self mode Oo1m OOtu soo sea 7 acs O INPUT 2.24} 10k 10K 5.1 4 OUTPUT ot 3 10k: 10k 10k: 4.7k| 8 o.0s7n 0.047n g i 0 iw S 1500p bode oa edema PS2 58553 eR 8:8 BEER, He Aye eee ees ee q Te) L pa vooss.0v ‘Units Resistance: Q Capacitance:F LED Indication and application example Ownenindcaing Ss SS ARSSEH @when indicating ZAL234 KEYO KEY! KEY2 KEY3 KEY4 KEYS KEYO KEY1 KEY2 KEYS KEY4 KEYS O-O-0-0-© iD OOOO) jf “4 Te ay LIGHT ON *hy? eR eg WHEN KEY IS MINUS. o<} eee @® 6£2496e6 0021981 653 Pei 3-80 ELECTRIC ee

MITSUBISHI SOUND PROCESSOR ICs M65847FP/SP DIGITAL KEY CONTROLLER $A OITA CONTROLLER 2. Easy mode O.01u O.01K 10k ootw 22u = me) INPUT og 10k 10k 5.1 3 ‘OUTPUT ace OF wo] ot tian Foon corn ti ° § 1600p boob bndoe eno i a Z5 225252525 2SR 29 ES ESETE - os ae a Sor eee eg SEEEESEEES ERE 8 SECS ORSSCRORCBORCECECECEoRS ere ara” |S 8 ojo ‘| [Key seting [" Parafel data") e [Fa JA THTATUTH Vec=5.0V [Fs TACT AT ATA [rea] [Fo TATATATATH] [er Tt TAT ATAT TC) [ree ER Perera en Capacitance:F a M™ 6249826 0021982 797 a oe lieee 3-81 a

MITSUBISHI SOUND PROCESSOR ICs DIGITAL KEY CONTROLLER CEE 3. MCU mode Tay BBS + oourrut 0K one 22 1 °o 40KSINPUT 2:21 10k 10k 10K | 4: 47k) er ie : gti Goon oneoe ees ee ao zZ25225 2 Zs5zZ25 SRSESET SESE RES $fS<seeggt tc tes ge 2B Bez225 FE * ESE rE ao cs ES w sett... 88Es oR Sse. og Se 2EE8R FEGE RE 8 EE CRCEORCECECECEORCREROROSE A . i, s . 473 SATs elele 000 gee g zg 3 3 voo=5.0V Units Resistance: a 5 Capacitance:F COMPATIBILITY WITH M65840 In the MCU mode, the M65847 is compatible with our key controller IC M65840 as follows: (1) Control data format . ‘The setting function, data format and data input timing are the same as those of M65840 (2) Pin configuration and external components ‘The pin configuration and external components are almost the same as those of M65840 part of external components can be reduced (See below) Ooty) 9 oa = 4 oourpur 10k 1 ots 22 . sue 7S wnpur22H | 1087 kT 04 7x oar "boar [1S 0p el EA EE © lS el eel BL el SB Zh ZZ 5 25 25 25 - ese 8 eT BEB 8 EB Papapahgbebgs a° 8 Sof se Get ee bseae gee 8838 §5 2G HBS Fao Peers eee * ats m sic i jemi 1) Capacitance:F 0° 0 47 wpa /2 2 ps Ts 8 8 vosssov «& =) B [3 ‘The components marked with a circle are required for & M65840, not for M65847. Other external components Cy] are shared with both ICs. Pin, ©, @ and @ with a rir built-in pull-down resistor are available with NC. As mentioned above, the M65847 can be replaced with M65840 without changing the program and board of the microcomputer (3) Electrical charcteristics ‘Because of a sampling frequency of 250kHz (M65840:500kHz), the M65847 has different electrical characteristics Noise:-80dB Vtyp (M65840:-85dBVtyp) THD: 1.3%typ (M65840:0,8%) M™ 6249826 0021983 beb MITSUBISHI 3-82 oe iieee a