ion. ge. icat n A RspY N ecif to cha I I M inal ject MITSUBISHI SOUND PROCESSOR ICS L t a f sub P R E; This iisc nlimo its are tr ice Not parame e som M65831AP/FP DIGITAL ECHO (DIGITAL DELAY) DESCRIPTION The M65831A is an IC developed for producing echo effects added to voice signals picked up by microphone for karaoke applications. The IC has the largest memory among the digital delay series. As it’s design is aimed at high performance, it is best suited to provide radio cassette tape recorders and miniature unit audio system with quality echo function. Being pin compatible with the M65830CP / FP and M65843AP / FP, the M65831AP / FP is suitable for upgrading the series. Outline FEATURES •Built-in input / output filters, A-D and D-A conver ters, and memory realize a delay system with only a single chip •Capable of composing low-noise and low-distortion delay system at low cost by ADM system (No=-92dB typ, THD=0.5% typ) •Control mode selections available from 2 kinds : easy mode using parallel data and microcomputer mode using serial data •Sleep mode can be selected to stop IC functions •Built-in automatic reset circuit Outline 24P4 (AP) 2.54mm pitch 600mil DIP (13.0mm X 31.1mm X 3.8mm) RECOMMENDED OPERATING CONDITIONS Supply voltage range Outline 24P2W-A(AFP) 1.27mm pitch 450mil SOP (8.4mm X15.0mm X2.0mm) VCC,VDD=4.5 to 5.5V Rated supply voltage VCC,VDD=5.0V SYSTEM CONFIGURATION RAM HPF L VOCAL CUT LPF BASS MIX L MIX BASS MIX R KEY CONTROL HPF R MIX CTL NORM SEARCH MIC1 VISS VISS M65381AP/FP MIC VOL MIC AMP MIC2 MIX MIX MIC VOL ECHO MIC AMP MITSUBISHI ELECTRIC 1 ECHO VOL ion. ge. icat n A RspY N ecif to cha I I M inal ject MITSUBISHI SOUND PROCESSOR ICS L t a f sub P R E; This iisc nlimo its are tr ice Not parame e som M65831AP/FP DIGITAL ECHO (DIGITAL DELAY) Pin Configuration 1 24 Vcc XIN 2 23 LPF1 IN XOUT 3 22 LPF1 OUT D1/REQ 4 21 OP1 OUT D2/SCK 5 20 OP1 IN D3/DATA 6 19 REF D4/IDSW 7 18 CC1 TEST 8 17 CC2 EASY/µ -COM 9 16 OP2 IN SLEEP 10 15 OP2 OUT D-GND 11 14 LPF2 IN A-GND 12 13 LPF2 OUT M65831AP/FP VDD MITSUBISHI ELECTRIC 2 ion. ge. icat n A RspY N ecif to cha I I M inal ject MITSUBISHI SOUND PROCESSOR ICS L t a f sub P R E; This iisc nlimo its are tr ice Not parame e som M65831AP/FP DIGITAL ECHO (DIGITAL DELAY) BLOCK DIAGRAM LPF1 IN LPF1 OUT OP1 OUT 23 22 21 20 CC1 CC2 OP2 IN 18 17 16 MOD DEM 4.7k OP2 LPF2 OUT IN LPF2 OUT 15 14 13 OP2 OP1 LPF1 REF 4.7k OP1 IN LPF2 COMP 19 1/2 Vcc D1 AUTO RESET RESET CLOCK OSCILLATOR 2 3 XIN XOUT DO0 DO1 MAIN CONTROL 48K-bit SRAM MO MI DELC DELAY TIME CONTROL 4 5 6 7 8 9 10 11 12 1 SLEEP D-GND A-GND VDD D1/REQ D3/DATA TEST D2/SCK D4/IDSW EASY/µ -COM 24 Vcc Unit Resistance:Ω MITSUBISHI ELECTRIC 3 ion. ge. icat n A RspY N ecif to cha I I M inal ject MITSUBISHI SOUND PROCESSOR ICS L t a f sub P R E; This iisc nlimo its are tr ice Not parame e som M65831AP/FP DIGITAL ECHO (DIGITAL DELAY) PIN DESCRIPTION No. Symbol Name Function I/O 1 VDD Digital VDD 2 XIN Oscillator input I 3 XOUT Oscillator output O 4 D1/REQ Delay1/Request I Easy mode:inputs D1 data µ -COM mode:inputs request data 5 D2/SCK Delay2/Shift clock I Easy mode:inputs D2 data µ -COM mode:inputs shift clock 6 D3/DATA Delay3/Serial data I Easy mode:inputs D3 data µ -COM mode:inputs serial data 7 D4/IDSW Delay4/ID switch I Easy mode:inputs D4 data µ -COM mode:controls ID code 8 TEST Test I L=normal mode 9 EASY/ µ -COM Easy/ µ -COM I H=easy mode L=µ -COM mode 10 SLEEP Sleep I H=sleep mode L=normal mode 11 D GND A GND Digital GND Analog GND Low pass filter2 output Low pass filter2 input OP-AMP2 output OP-AMP2 input Current control 2 Current control 1 Reference OP-AMP1 input OP-AMP1 output Low pass filter1 output Low pass filter1 input Analog VCC 12 13 14 15 16 17 18 19 20 21 22 23 24 LPF2 OUT LPF2 IN OP2 OUT OP2 IN CC2 CC1 REF OP1 IN OP1 OUT LPF1 OUT LPF1 IN VCC Supply voltage Connects to analog GND at one point Connects to analog GND O I O I Forms low pass filter with external C.R Forms integrator with external C.R =1/2VCC I O O I MITSUBISHI ELECTRIC 4 Connects to 2MHz ceramic filter Forms integrator with external C.R Forms low pass filter with external C.R Supply voltage ion. ge. icat n A RspY N ecif to cha I I M inal ject MITSUBISHI SOUND PROCESSOR ICS L t a f sub P R E; This iisc nlimo its are tr ice Not parame e som M65831AP/FP DIGITAL ECHO (DIGITAL DELAY) ABSOLUTE MAXIMUM RATINGS (Vcc=5V,f=1kHz,Vi=100mVrms,Ta=25°C,unless otherwise noted) Symbol Parameter Conditions Ratings Units Vcc Supply voltage 6.5 V Circuit cuurent 100 mA Pd M65831AP Power dissipation M65831AFP 1 650 W mW Topr Operating temperature -20~+75 °C Tstg Storage temperature -40~+125 °C POWER DISSIPATION Pd (mW) Icc THERMAL DERATING (MAXIMUM RATING) 1000 AP 800 AFP 650 600 400 325 200 0 0 25 50 75 100 125 AMBIENT TEMPERATURE Ta (°C ) RECOMMENDED OPERATING CONDITIONS Min Limits Typ Max Supply voltage 4.5 5 5.5 V VDD Supply voltage 4.5 5 5.5 Vcc-VDD Difference voltage -0.3 0 0.3 V V fck Clock frequency 1 2 3 MHz VIH High input voltage 0.7VDD VDD V VIL Low input voltage 0 0.3VDD V Symbol Parameter Vcc Conditions MITSUBISHI ELECTRIC 5 Units ion. ge. icat n A RspY N ecif to cha I I M inal ject MITSUBISHI SOUND PROCESSOR ICS L t a f sub P R E; This iisc nlimo its are tr ice Not parame e som M65831AP/FP DIGITAL ECHO (DIGITAL DELAY) ELECTRICAL CHARACTERISTICS (Vcc=5V,f=1kHz,Vi=100mVrms,Ta=25°C,unless otherwise noted) Limits Symbol Parameter Test conditions Min Typ Max Units 18.0 40.0 mA 2.5 dB Icc Circuit current No signal Gv Voltage gain RL=47kΩ -3.5 -0.5 Maximum output voltage THD=10% 0.7 1 Vomax THD No SVRR fs=500kHz 0.3 1.0 fs=250kHz 0.5 1.5 Output noise voltage DIN-AUDIO (fs=250kHz) -92 -75 dBV Supply voltage rejection ∆Vcc=-20dBV,f=100Hz ratio -40 -25 dB 548 Output distortion TMUTE Mute time Iccs Vrms Circuit current (Sleep mode) % 30kHz LPF Upon changing Delay Time 508 528 Upon canceling Sleep Mode 508 528 548 14.0 30.0 Sleep Mode MITSUBISHI ELECTRIC 6 ms mA ion. ge. icat n A RspY N ecif to cha I I M inal ject MITSUBISHI SOUND PROCESSOR ICS L t a f sub P R E; This iisc nlimo its are tr ice Not parame e som M65831AP/FP DIGITAL ECHO (DIGITAL DELAY) OPERATION 1) DELAY TIME D4 D3 D2 D1 fs L 12.3 H 24.6 L 36.9 H 49.2 L L H L L H H L L H L L H H 500 61.4 H 73.7 L 86.0 H 98.3 L 110.6 H 122.9 L 135.2 H H Td 147.5 250 L 159.7 H 172.0 L 184.3 H 196.6 fs=sampling frequency(kHz) Td=delay time(msec) MITSUBISHI ELECTRIC 7 ion. ge. icat n A RspY N ecif to cha I I M inal ject MITSUBISHI SOUND PROCESSOR ICS L t a f sub P R E; This iisc nlimo its are tr ice Not parame e som M65831AP/FP DIGITAL ECHO (DIGITAL DELAY) 2) EASY MODE(EASY / µ -COM=H) D1,D2,D3,D4 and sleep are for easy mode D1 D2 D3 D4 SLEEP delay time cf 11-1) cf 11-5) 3) µ -COM MODE(EASY / µ -COM=L) REQ SCK DATA SLEEP D1 D2 D3 D4 MUTE ID1 ID2 ID3 ID4 ID CODES DELAY TIME cf 11-1) H=SLEEP MODE cf 11-5) H=MUTE cf 11-4) TIMING DIAGRAM This Timing chart shows that delay time is set by serial data from µ -COM. DATA signal is latched at the falling edge of SCK signal,the last ten data are set at the rising edge of REQ signal when ID codes are satisfied. ID1,ID3:L ID2 :H ID4 :equal to IDSW * * MITSUBISHI ELECTRIC 8 ion. ge. icat n A RspY N ecif to cha I I M inal ject MITSUBISHI SOUND PROCESSOR ICS L t a f sub P R E; This iisc nlimo its are tr ice Not parame e som M65831AP/FP DIGITAL ECHO (DIGITAL DELAY) REQ,SCK,DATA INPUT TIMING t5 REQ t1 t4 SCK t2 t3 ds DATA Symbol SLEEP D1 D2 D3 Parameter t1 SCK pulse width ds SCK pulse duty t2 DATA setup time t3 D4 MUTE min ID1 ID2 ID3 ID4 typ 250 max Units nsec 50 % 100 t1/2 nsec DATA hold time 100 t1/2 nsec t4 REQ hold time 100 nsec t5 REQ pulse width 250 nsec MITSUBISHI ELECTRIC 9 ion. ge. icat n A RspY N ecif to cha I I M inal ject MITSUBISHI SOUND PROCESSOR ICS L t a f sub P R E; This iisc nlimo its are tr ice Not parame e som M65831AP/FP DIGITAL ECHO (DIGITAL DELAY) 4) MUTING (1)Easy mode Automatic mute upon changing delay time,cancelling SLEEP mode and power-on. (2)µ -COM mode MUTE=H:mute MUTE=L:automatic mute AUTOMATIC MUTE DELAY SIGNAL BEFORE CHANGE MODE DELAY SIGNAL AFTER CHANGE MODE MUTE TIME (a) UPON CHANGING DELAY TIME DELAY SIGNAL MUTE TIME CANCEL SLEEP MODE (b) UPON CANCELLING SLEEP MODE DELAY SIGNAL 120msec MUTE TIME POWER ON (c) UPON POWER-ON MITSUBISHI ELECTRIC 10 ion. ge. icat n A RspY N ecif to cha I I M inal ject MITSUBISHI SOUND PROCESSOR ICS L t a f sub P R E; This iisc nlimo its are tr ice Not parame e som M65831AP/FP DIGITAL ECHO (DIGITAL DELAY) 5) SLEEP MODE SLEEP data is H:clock and RAM stop to reduce circuit current (SLEEP mode) L:normal operation 6) SYSTEM RESET Automatically reset power-on. The reset time is about 120msec. Delay time is set at 147.5msec. MITSUBISHI ELECTRIC 11 S24 2 1 A S30 2 50 VCC 24 0.1µ MITSUBISHI ELECTRIC 12 100p 0.1µ 1 VDD CLK 2 2MHz 1M 3 100p 2 DELC 1 2 S5 5 1 DELAY TIME CONTROL S4 4 20 19 47µ DO0 MOD 18 0.1µ 2 1 S6 6 2 1 S7 7 MAIN CONTROL OP1 4.7k 21 D1 COMP RESET LPF1 22 30 0.1µ 8 DO1 DEM 17 0.1µ 9 16 30 MI 2 1 13 GND VDD 11 1µ 12 ANG.GND 48K-bit SRAM LPF2 14 560p 10k 5600p 15k DIG.GND S10 10 OP2 MO 15 4.7k 0.1µ 15k 2.7k 47k 0.01µ Vo L t a f sub P R E; This iisc nlimo its are OSCILLATOR AUTO RESET 560p 15k 15k 23 10k 1µ 5600p 1/2 Vcc 100µ 1 tr ice Not parame e som Units : Resistance Ω Capacitance F Vcc Vi ion. ge. icat n A RspY N ecif to cha I I M inal ject MITSUBISHI SOUND PROCESSOR ICS M65831AP/FP DIGITAL ECHO (DIGITAL DELAY) TEST CIRCUIT ion. ge. icat n A RspY N ecif to cha I I M inal ject MITSUBISHI SOUND PROCESSOR ICS L t a f sub P R E; This iisc nlimo its are tr ice Not parame e som M65831AP/FP DIGITAL ECHO (DIGITAL DELAY) TEST METHODS Switch condition No Parameter Sampling frequency 1 Current circuit 2 Voltage gain 500kHz 250kHz 500kHz 3 Delay time 250kHz Output voltage 4 (max) Total harmonic 5 distortion Output noise 6 voltage Supply voltage 7 rejection ratio 8 Mute time 500kHz 250kHz * 1 or 2 S Symbol 4 Icc 1 Gv1 * Gv2 * Tda 1 Tdb 2 Tdc 1 Tdd 2 Tde 1 Tdf 2 Tdg 1 Tdh 2 Tdi 1 Tdj 2 Tdk 1 Tdl 2 Tdm 1 Tdn 2 Tdo 1 Tdp 2 Vomax 1 * Vomax 2 * S 5 S S S S S 6 7 10 24 30 1 1 1 * * 1 * * 2 1 1 1 1 1 1 2 1 1 2 1 1 1 2 1 1 2 1 2 2 1 2 2 1 1 1 2 1 1 2 2 1 2 2 1 2 1 2 2 1 2 2 2 2 2 2 2 2 * * 1 * * 2 * * * 1 * * * 2 1 1 1 1 2 1 1 1 notes 2 No signal 1 1 1 cf. 11-1) 1 1 1 1 1 1 1 1 1 1 1 30kHz L.P.F. 1 THD=10% 1 30kHz L.P.F. 1 1 250kHz THD 1 THD 2 250kHz No * * * 2 1 1 1 Vi=0mVrms SVRR * * * * 1 1 2 f=100Hz MUTE T 2 1 * MUTE S * * * * * 1 1 1 2 * 1 1 1 500kHz MITSUBISHI ELECTRIC 13 DIN AUDIO ∆Vcc=-20dBv, Upon changing Delay Time Upon cancelling Sleep Mode ion. ge. icat n A RspY N ecif to cha I I M inal ject MITSUBISHI SOUND PROCESSOR ICS L t a f sub P R E; This iisc nlimo its are tr ice Not parame e som M65831AP/FP DIGITAL ECHO (DIGITAL DELAY) APPLICATION EXAMPLE 30k 1µ 15k 5600p 0.1µ 30 18 17 16 D4 TEST EASY/µ-COM OP2 IN SLEEP DGND AGND 7 8 9 10 11 12 SLEEP SW REF D3 6 100p 100p 2.µ -COM MODE SETTING DELAY TIME 1µ 30k 0.1µ 30 AGND 9 10 11 12 100p REF µ -COM MITSUBISHI ELECTRIC 14 LPF2 OUT DGND 8 LPF2 IN SLEEP 7 SLEEP SW 6 CC2 5 OP1 IN 4 2MHz OUT 13 EASY/ µ -COM OP2 IN 14 TEST OP2 OUT 15 IDSW 16 3 0.1µ 100p 17 DATA CC1 18 2.7k 560p SCK 19 1µ REQ 20 1M 100µ 15k 10k 0.1µ XOUT LPF1 OUT 21 OP1 OUT 22 LPF1 IN XIN Vcc VDD 2 47µ 30 560p 1 0.1µ 0.1µ 0.01µ 5600p 15k 15k 23 3k 0.01µ non-porlar 1µ 15k 5600p 24 OUT 13 5 2MHz 10k 14 4 0.1µ IN 15 3 1M 100µ 2.7k 560p OP2 OUT OP1 OUT LPF1 OUT 19 CC2 20 CC1 21 1µ D2 2 22 15k 10k D1 1 0.1µ XOUT LPF1 IN XIN Vcc VDD 23 0.1µ 30 560p 24 47µ 0.01µ 5600p 15k 0.1µ 15k 10k 3k 0.01µ non-porlar LPF2 OUT 1µ OP1 IN IN LPF2 IN 1.EASY MODE Units Resistance Ω Capacitance F