Mitsubishi M658489BFP Datasheet

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M65849BFP

SINGLE CHIP SURROUND PROCESSOR

DESCRIPTION

The M65849BFP is a CMOS IC built-in Digital circuit and mixing amplifiers.
It is suitable for adding effects to Mini Stereo, CD-Radio Cassette and TV.
This COMS IC can be used dolby surround.

PIN CONFIGURATION

FEATURES

MCLKCONT

•Built-in digital delay , mixing amplifiers,input output selector
achieve a surround system with a single chip .

•Delay volume , feedback volume Built-in

•ADM digital delay ,16kbit SRAM Built-in

•Selection of delay time in a range between 9.2msec and

196.6msec 8 increments.

•32 pin SSOP package (32P2U-B)

•Built-in automatic reset circuit activated with power on

•5V single power supply

RECOMMENDED OPERATING CONDITION

•Supply voltage range...................Vcc=4.5 ~ 5.5V

Rated supply voltage.................Vcc=5V

CLOCK

LATCH

ADCONT
DACONT

DELAYSOURCE

TEST OUT

LPF1IN1
LPF1IN2

LPF1OUT

ADINTIN

ADINTOUT

TEST1

DATA

Vcc

OUT

GND

50

1
2
3

M 6 5 8 4 9 B F P

4
5
6
7
8

9
10
11
12
13
14
15
16 17

32
31
30
29
28
27
26
25
24
23
22
21
20
19
18

MVOL IN
MIC IN

NC

Lch IN
Rch IN

DELAY OUT

Lch OUT
Rch OUT
REF
MIC OUT
FVOL IN
LPF2OUT
LPF2IN2
LPF2IN1
DAINTOUT
DAINTIN

SYSTEM CONFIGURATION

L ch
IN

I(L+R)

I(L-R

MIC

MIC

MIC amp

ALC

MIC IN

R ch
IN

INPUT
SEL

DIGITAL
DELAY/ECHO

FEEDBACK
VOLUME

M 6 5 8 4 9 B F P

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MIX
VOLUME

MIX AMP

O(L-R)

O(ECHOMIX

MIX AMP

OUTPUT
SEL

NORMAL

L+R

MIC OUT
SW

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L ch OUT

MIC OUT

R ch OUT

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Block Diagram

MIC IN

MVOL IN

32

INPUT
SEL

MIX
VOL

I(MIC) I(L+R) I(L-R)

NC

3031

NC

Lch IN

Rch IN

272829

M65849BFP

SINGLE CHIP SURROUND PROCESSOR

MIC OUT

FVOL IN

DELAYOUT

Lch OUT

+

O(NORMAL) O(L+R)

Rch OUT

2526

1/2Vcc

+

O(L-R)

-1

REF

24

MIC OUT
SW

O(ECHOMIX)

OUTPUT
SEL

F.B
VOL

LPF2 OUT

LPF2 IN2

20212223

LPF

LPF2 IN1

19

16kSRAM

MAIN LOGIC

50

DAINT OUT

18

17

D/A

DAINT IN

MCLK

TEST1

1

MCLKCONT

µ - COM I/F

2

345 6

TEST1

CLOCK

LATCH

+

LPF

DATA

7

DACONT

ADCONT

Vcc

89

Vcc

TEST OUT

10

OUT

TEST OUT

11

LPF1IN1

12

LPF1IN2

13

LPF1OUT

14

ADINT IN

DELAYSOURCE

:Schmitt Trigger Buffer

NC :Nonconnect(This terminal can use relay terminal)

A/D

15

ADINT OUT

GND

16

GND

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M65849BFP

SINGLE CHIP SURROUND PROCESSOR

Pin Description

No. Symbol Name Function

1

2

3

4

5

MCLKCONT

TEST1

CLOCK

LATCH

DATA

Oscillator Input

Test pin

CLOCK

LATCH

DATA

I/O

Controls builts-in clock generation circuit

I

with external R

Test mode change "H" Normal / "L" Test

I

(Be sure connect to Vcc at Normal mode)
Clock input via serial bas

I

I

Latch input via serial bas

I

Data input via serial bas

50

6

AD CONT

DA CONT

7

8

Vcc

DELAYSOURCE

9

OUT

10

11

12

13

14

15

16

TEST OUT

LPF1 IN 1

LPF1 IN 2

LPF1 OUT

AD INT IN

AD INT OUT

GND

A/D Control

D/A Control

Power Supply

Delay source output

Test output

Low Pass Filter 1 Input 1

Low Pass Filter 1 Input 2

Low Pass Filter 1 Output

A/D Integrator Input

A/D Integrator Output

GND

Decide the time constant of A/D

Decide the time constant of D/A

(L+R) or( L-R) or (MIC) signal Output

O

Memory /Mute /Sampling Data Output (Test mode)

O

(Be sure to open at Normal mode)

I

Prefilter placed before A/D convertor for

I

digital delay

O

I

To form D/A convertor Integrator by connecting

external capacitor

O

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17

18

19

20

21

Symbol

DAINT IN

DAINT OUT

LPF 2 IN 1

LPF 2 IN 2

LPF 2 OUT

SINGLE CHIP SURROUND PROCESSOR

Name

D/A Integrator Input

D/A Integrator Output

Low Pass Filter 2 Input1

Low Pass Filter 2 Input 2

Low Pass Filter 2 Output

M65849BFP

I/O

I

Form Integrator With External C

O

I

I

Form Low Pass Filter With External C,R

O

FunctionNo.

50

22

23

24

25

26

27

28

29

30

31

32

FVOL IN

MIC OUT

REF

Rch OUT

Lch OUT

DELAYOUT

Rch IN

Lch IN

NC

MIC IN

MVOL IN

Feedback Volume Input

Microphone Output

Reference

Rch Output

Lch Output

DELAY Output

Rch Input

Lch Input

Nonconnect

Microphone Input

Mix Volume Input

I

Feedback Volume Input

Microphone Output

O

1/2 Vcc Output , Connect External C

O

Rch Mixing Output

O

Lch Mixing Output

O

Delay Signal Output

Rch Input

I

I

Lch Input

This terminal can use relay terminal for external

Microphone Input

I

Mix Volume Input

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M65849BFP

SINGLE CHIP SURROUND PROCESSOR

Operation Mode Settings.

Operation mode is controlled by the 16-bit serial data inputted in accordance with
the following timing.

• The (DATA is reading at the rising edge of the CLOCK and the last 16-bits
are loaded at the rising edge of the LATCH.

LATCH

4

50

CLOCK

3

DATA

5

D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15

Data No.

D0
D1
D2
D3
D4

D5
D6
D7

D8
D9
D10
D11
D12
D13
D14
D15

Control

DELAY TIME

INPUT

SELECTOR

OUTPUT

SELECTOR

MICOUT SW

MIX VOL

FEED

BACK

ADDRESS

Block

Vcc

There are 8 kinds of Delay Time which are
from 9.2ms to 196.6ms.

This is the input selector which selects (CLOCKOFF),(L+R),
(L-R) or( MIC).

This is the output selector which selects (L+R),(L-R),
(ECHOMIX) or (NORMAL).

This is the ON/OFF switch for the Microphone signal.

There are 8 kinds of ATT. level which are from +3dB to

-15dB,- dB(3dB step).

There are 8 kinds of ATT. level which are from -3dB
to -15dB,- dB(2dB step).

D14=(L),D15=(H)DATA Load,the others cancel.

Control Explanation

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