Mitsubishi M65850P, M65850FP Datasheet

MITSUBISHI SOUND PROCESSOR ICs

SERIES

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

DIGITAL ECHO(DIGITAL DELAY)

M65850P/FP

SERIES

50

KARAOKE

DESCRIPTION

◊ The M65850P/FP is a CMOS IC for generating echo to be added to the voice through a
"karaoke" microphone.
◊ It is optimal to provide the echo effect function for karaoke player, such as radio cassette
recorders, mini audio components and television sets.
◊ Increased master clock frequency assures high-performance short delay,enabling the IC
to be used for dolby prologic surround system.

PACKAGE

FEATURES

• Built-in input/output filters, A-D and D-A converters,and memory
realize a delay system with only a single chip.

• Built-in current control type clock oscillator circuit avoids clock
affection outside,thus allowing prevention of undesired radiation.

• Delay time = 164 ms (with master clock set at 1MHz)
(Selection of delay time in a range between 15ms and 200ms)

• 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)

Outline 1 4 P 4 ( P )

2.54mm pitch 300mil DIP

RECOMMENDED OPERATING CONDITION

Supply voltage range • • • • • Vcc=3.5~5.5V
Rated supply voltage • • • • • • • • • • Vcc=5V

SYSTEM CONFIGURATION

RAM

L

VOCAL
CUT

R

MIC1

MIC AMP

MIC2

MIC AMP

HPF

LPF KEY CONTROL

HPF

MIC VOL

MIX

MIC VOL

M65850P/FP

ECHO VOLECHO

MIX

MIX

Outline 1 6 P 2 N ( FP )

1.27mm pitch 300mil SOP

BASS

BASS

MIX

MIX

MIX

L

R

Note : Dolby is the registered trademarks of dolby laboratories licensing corporation.

MITSUBISHI
ELECTRIC

( / 11 )

1

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

PIN CONFIGURATION

< M65850P >

DIGITAL ECHO(DIGITAL DELAY)

MITSUBISHI SOUND PROCESSOR ICs

M65850P/FP

50

KARAOKE

SERIES

SERIES

LPF1 IN

LPF1 OUT

OP1 OUT

OP1 IN

GND

< M65850FP >

CC1
CC2

1

14

14

VCC

M 6 5 8 5 0 P

CLOCK

2

3
4
5

6
7

13

REF

12
11

OP2 IN

10

OP2 OUT

9

LPF2 IN

8

LPF2 OUT

NC

LPF1 IN

LPF1 OUT

OP1 OUT

OP1 IN

CC1
CC2

GND

1

M 6 5 8 5 0 F P

14

2

3
4
5
6
7
8

MITSUBISHI
ELECTRIC

NC

16

VCC

15

CLOCK

14

REF

13
12

OP2 IN

11

OP2 OUT

10

LPF2 IN

9

LPF2 OUT

( / 11 )

2

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

IC INTERNAL BLOCK DIAGRAM

< M65850P >

12

REF

1/2 Vcc

DIGITAL ECHO(DIGITAL DELAY)

CLOCK

13

OSCILLATOR

CLOCK

AUTO
RESET

RESET

M65850P/FP

OP2IN OP2OUT LPF2IN LPF2OUT

CC2

6

D / A

DO1

MAIN CONTROL

D1 DO0

MITSUBISHI SOUND PROCESSOR ICs

SERIES

SERIES

50

KARAOKE

891011

LPF2

MO

M I

20Kbit
SRAM

LPF1

1 142 3 4 5

< M65850FP >

13

REF

1/2 Vcc

NC

NC

16

1

AUTO
RESET

LPF1

LPF1OUTLPF1IN

CLOCK

14

OSCILLATOR

RESET

CLOCK

A / D

OP1INOP1OUT

CC2

OP2IN OP2OUT LPF2IN LPF2OUT

7

DO1

MAIN CONTROL

D1 DO0

A / D

CC1

D / A

MO
M I

7

GND

LPF2

20Kbit
SRAM

VCC

9101112

2 153 4 5 6

LPF1OUTLPF1IN

OP1INOP1OUT

MITSUBISHI
ELECTRIC

CC1

8

GND

VCC

( / 11 )

3

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

PIN DESCRIPTION

Pin No.

DIGITAL ECHO(DIGITAL DELAY)

MITSUBISHI SOUND PROCESSOR ICs

M65850P/FP

50

KARAOKE

SERIES

SERIES

P FP
1
2

3
4
5

6
7
8

9
10
11

10
11

12

Symbol Name

2
3
4

5
6
7

8
9

LPF1 IN
LPF1 OUT
OP1 OUT

OP1 IN

CC1

CC2

GND

LPF2 OUT
LPF2 IN

OP2 OUT

OP2 IN

Low pass filter 1
input

Low pass filter 1
output

Operational

amplifier1 output

Operational

amplifier 1 input

Current control 1

Current control 2

GND

Low pass filter 2
output

Low pass filter 2
input

Operational

amplifier 2 output
Operational

amplifier 2 input

I/O

Function

I

To form input-side low pass filter by
connecting external capacitor and resistor

O
O

To form A-D conversion integrator by
connecting external capacitor

I

ADM control of A-D converter

-

ADM control of D-A converter

-

-

O

To form input-side low pass filter by
connecting external capacitor and resistor

I

O

To form D-A conversion integrator by
connecting external capacitor

I

I

12
13

14

-

13
14

15

1

16

REF

CLOCK

VCC

NC

Reference

Clock generator

input

Supply voltage

No connection -

MITSUBISHI
ELECTRIC

Analog reference voltage 1/2Vcc

-

To form clock generator by connecting

I

external resistor

To apply 3.5 ~ 5.5 V power

-

(Rated voltage : 5 V)

•

•

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4