M65855FP Mitsumi Electronics, Corp., M65855FP Datasheet
M65855FP
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M65855FP Summary of contents
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... Chip Digital Echo with Microphone mixing Amplifier DESCRIPTION The M65855FP is a CMOS IC built-in Digital Echo function with microphone mixing circuits for KARAOKE equipment packed in a single chip suitable for KARAOKE equipments such as Video CD Player,Mini stereo,CD Radio cassette,TV or VCR. FEATURES • Internal Input/Output low pass filter,A/D,D/A converters,microphone mixing amplifier,memory achieve a digital echo system with a single chip ...
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... PIN CONFIGURATION GND 1 ECHOVOL 2 REF 3 OP2 IN 4 OP2 OUT 5 LPF2 IN 6 LPF2 OUT 7 MIC OUT 8 MITSUBISHI SOUND PROCESSOR IC's M65855FP 16 CLOCK 15 ECHOMUTE OP1 IN 12 OP1 OUT 11 LPF1 OUT 10 LPF1 IN 9 MIC IN MITSUBISHI ELECTRIC KARAOKE ...
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... IC INTERNAL BLOCK DIAGRAM CLOCK ECHOMUTE REF 3 16 OSCILLATOR 1/2 Vcc CLOCK DO1 AUTO MAIN CONTROL RESET RESET D1 A/D LPF1 MITSUBISHI SOUND PROCESSOR IC's M65855FP ECHOVOL VOL D/A 20Kbit MO SRAM M I DO0 13 1 GND MITSUBISHI ELECTRIC KARAOKE ...
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... Opeamp 1 input 14 V Power Supply CC 15 ECHOMUTE Echo mute control 16 CLOCK Clock control MITSUBISHI SOUND PROCESSOR IC's M65855FP Name I/O - Echo level control with external DC voltage I (from 0 to -10,- 8 steps connect 1/2 Vcc output and filter capacitor I I Uses external C to form an D/A conversion integrator ...
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... Storage temperature RECOMMENDED OPERATING CONDITIONS Symbol Parameter Vcc Supply voltage ViL "L" input voltage ViR "Ref" input voltage ViH "H"input voltage MITSUBISHI SOUND PROCESSOR IC's M65855FP (Ta=25°C,unless otherwise noted) Test conditions -40~125 Test conditions Min. 3.5 0.0 1/2Vcc-0.5 1/2 Vcc Vcc-1 MITSUBISHI ELECTRIC ...
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... Delay time td Voltage gain between Gv input and output Vomax Maximum output voltage Output distortion THD Output noise voltage No MITSUBISHI SOUND PROCESSOR IC's M65855FP ,fck=1MHz,Ta=25°C,unless otherwise noted) (rms) Test conditions When signal is not provided RL=47k THD=10% 30kHz LPF JIS-A Rc=120k Rc=120k RL=47k ...
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... FUNCTION DESCRIPTION (1) Clock oscillator circuit The M65855FP incorporates a current control type clock oscillator circuit in it, thus providing circuit configuration just by connecting a resistor for current control to pin 16 CLOCK. Fully internal clock supply prevents occurrence of undesired radiation without affecting any external circuit When Rc=120k ...
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... L R-H (about 260msec) change time (c)Mute R MITSUBISHI SOUND PROCESSOR IC's M65855FP Mode Normal mode Mute mode (clock stop +Microphone output mute) Mute(clock stop) Mute time mute off time H change setting (fck=1MHz) Mute time mute off time ...
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... The recommend voltage gain and the A/D ,D/A LPF signal pass band, please refer to the table below. ( Delay time 164msec (When Master clock 1MHz)) A/D LPF Signal pass band Gain 3KHz -6dB MITSUBISHI SOUND PROCESSOR IC's M65855FP 1 fsig= 2 C1•C2•R2•R3 R2 Gv= 20log R1 When,R1=20K,R2=8.2K,R3=10K,C1=0.012µF, C2=4700pF, cut off frequency and voltage gain is following ...
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... APPLICATION EXAMPLE Vcc Echo Mute 100µ 120K 0.1É 22µ ECHO Volume MITSUBISHI SOUND PROCESSOR IC's M65855FP 0.012µ 10k 8.2k 0.01µ 4700p 3300p 0.01µ Non 4.7k 1.0µ 10k 15k 0.01µ MITSUBISHI ELECTRIC KARAOKE 24k MIC IN 20k 1µ ...