M65850FP MITSUBISHI, M65850FP Datasheet

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M65850FP

Manufacturer Part Number
M65850FP
Description
Digital echo (digital delay)
Manufacturer
MITSUBISHI
Datasheet

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RECOMMENDED OPERATING CONDITION
• Built-in input/output filters, A-D and D-A converters,and memory
• Built-in current control type clock oscillator circuit avoids clock
• Delay time = 164 ms (with master clock set at 1MHz)
• Small package (14-pin DIP : 14P4,16-pin SOP:16P2N)
• Built-in 20Kbit SRAM
• Built-in auto reset circuit (The IC reset as power is turned on)
• Single power supply (5V)
DESCRIPTION
Supply voltage range • • • • • Vcc=3.5~5.5V
Rated supply voltage • • • • • • • • • • Vcc=5V
FEATURES
realize a delay system with only a single chip.
affection outside,thus allowing prevention of undesired radiation.
(Selection of delay time in a range between 15ms and 200ms)
SYSTEM CONFIGURATION
The M65850P/FP is a CMOS IC for generating echo to be added to the voice through a
It is optimal to provide the echo effect function for karaoke player, such as radio cassette
Increased master clock frequency assures high-performance short delay,enabling the IC
"karaoke" microphone.
recorders, mini audio components and television sets.
to be used for dolby prologic surround system.
MIC1
MIC2
R
L
MIC AMP
MIC AMP
VOCAL
CUT
Note : Dolby is the registered trademarks of dolby laboratories licensing corporation.
MIC VOL
MIC VOL
DIGITAL ECHO(DIGITAL DELAY)
HPF
LPF
HPF
MIX
KEY CONTROL
RAM
MITSUBISHI
ELECTRIC
M65850P/FP
ECHO
M65850P/FP
ECHO VOL
MIX
MIX
MITSUBISHI SOUND PROCESSOR ICs
BASS
BASS
MIX
Outline 1 6 P 2 N ( FP )
Outline 1 4 P 4 ( P )
1.27mm pitch 300mil SOP
2.54mm pitch 300mil DIP
PACKAGE
(
MIX
MIX
1
KARAOKE
50
/ 11 )
S E R I E S
S E R I E S
L
R

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M65850FP Summary of contents

Page 1

... HPF VOCAL LPF CUT HPF R MIC1 MIC VOL MIC AMP MIC2 MIC VOL MIC AMP Note : Dolby is the registered trademarks of dolby laboratories licensing corporation. MITSUBISHI SOUND PROCESSOR ICs M65850P/FP RAM MIX KEY CONTROL MIX MIX ECHO ECHO VOL M65850P/FP MITSUBISHI ELECTRIC 50 ...

Page 2

... DIGITAL ECHO(DIGITAL DELAY) PIN CONFIGURATION < M65850P > LPF1 IN LPF1 OUT OP1 OUT OP1 IN CC1 CC2 GND < M65850FP > NC LPF1 IN LPF1 OUT OP1 OUT OP1 IN CC1 CC2 GND MITSUBISHI SOUND PROCESSOR ICs M65850P/ CLOCK REF 3 11 OP2 OP2 OUT LPF2 LPF2 OUT CLOCK ...

Page 3

... DIGITAL ECHO(DIGITAL DELAY) IC INTERNAL BLOCK DIAGRAM < M65850P > 12 REF OSCILLATOR 1/2 Vcc AUTO RESET LPF1 1 2 LPF1IN LPF1OUT < M65850FP > 13 REF OSCILLATOR 1/2 Vcc AUTO 16 NC RESET 1 NC LPF1 2 3 LPF1IN LPF1OUT MITSUBISHI SOUND PROCESSOR ICs M65850P/FP OP2IN OP2OUT LPF2IN LPF2OUT ...

Page 4

... OP2 REF 13 CLOCK MITSUBISHI SOUND PROCESSOR ICs M65850P/FP I/O Name Low pass filter 1 I input To form input-side low pass filter by connecting external capacitor and resistor Low pass filter 1 O output Operational O amplifier1 output To form A-D conversion integrator by connecting external capacitor ...

Page 5

... Voltage gain Gv Maximum output Vomax voltage Total harmonic THD distortion No Output noise voltage Clock frequency fck MITSUBISHI SOUND PROCESSOR ICs M65850P/ 25°C, unless otherwise noted ) Conditions Conditions Min 3.5 0.8 ,fck=1MHz,Ta=25°C, unless otherwise noted) (rms) Test conditions No signal input RL=47k ...

Page 6

... The resistor for current control can be calculated using the following equation. • Rc K/Clock frequency (fck • the coefficient, and changes according to clock frequency ,as shown below. Clock Frequency Delay Time ( ms ) 15~30 11.0M~5.5M 5.3M~1.64M 31~100 101~200 1.62M~800K MITSUBISHI SOUND PROCESSOR ICs M65850P/FP K value ( MITSUBISHI ELECTRIC 50 KARAOKE Vcc Clock Rc * oscillator 13 ...

Page 7

... REF (FP: • • • fsig= Delay time Clock ( ms ) frequency 15~30 11.0M ~ 5.5M 31~100 5.3M ~ 1.64M 101~200 1.62M ~ 800k •Test Condition is Vcc=5V,Vi=100mV MITSUBISHI SOUND PROCESSOR ICs M65850P/FP * (FP: • C2 • R1 • R2 LPF signal pass band ( 15k 15k 5k 13k 13k 3k 16k 16k MITSUBISHI ...

Page 8

... WHEN POWER IS ON (fck=1MHz) TEST CONDITIONS Symbol Parameter Icc Circuit current Voltage gain between Gv input and output Vomax Maximum output voltage THD Output distortion No Output noise voltage MITSUBISHI SOUND PROCESSOR ICs M65850P/FP MUTE PERIOD MUTE (ABOUT 260ms) OFF TIME No-signal time 30kHz LPF ...

Page 9

... DIGITAL ECHO(DIGITAL DELAY) TEST CIRCUIT < M65850P > 0.1µ + 47µ 1500p 16k 51 16k 1µ (2) S1 (1) 6800p ~ Vi < M65850FP > 0.1µ + 47µ 1500p 16k 51 16k 1µ (2) S1 (1) 6800p ~ Vi MITSUBISHI SOUND PROCESSOR ICs M65850P/FP (2) 16k 0.068µ S14 (1) 16k 120k 47µ + 1500p 0.22µ 0.22µ ...

Page 10

... DIGITAL ECHO(DIGITAL DELAY) APPLICATION EXAMPLE • ECHO Delay time 164ms (Signal pass band 3kHz) < M65850P > 0.1µ + 47µ 1500p 16k IN 16k 1µ 6800p < M65850FP > 0.1µ + 47µ 1500p 16k IN 16k 1µ 6800p MITSUBISHI SOUND PROCESSOR ICs M65850P/FP 16k 0.068µ 16k 120k 47µ ...

Page 11

... DIGITAL ECHO(DIGITAL DELAY) • SURROUND Delay time 20ms ( Signal pass band 7kHz ) < M65850P > 0.1µ + 47µ 680p 15k IN 15k 1µ 3300p < M65850FP > 0.1µ + 47µ 680p 15k IN 15k 1µ 3300p MITSUBISHI SOUND PROCESSOR ICs M65850P/FP 15k 0.047µ 15k 11k 47µ ...

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