Datasheet M658489BFP Datasheet (Mitsubishi)

MITSUBISHI SOUND PROCESSOR ICs

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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

MITSUBISHI
ELECTRIC

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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MITSUBISHI SOUND PROCESSOR ICs

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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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MITSUBISHI SOUND PROCESSOR ICs

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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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Description of Control

Delay Time Control

CONTROL DATA

DELAY TIME

D0 D1 D2

LL L
HLL
LHL
HHL

9.2msec

15.4msec

21.5msec

28.7msec

M65849BFP

50

SINGLE CHIP SURROUND PROCESSOR

The Cut Off
Frequency
of LPF

7.3kHz

LLH
HLH

HH

L
HHH

147.5msec

196.6msec

Input Selector Control

Control Data

INPUT SELECTOR

D3 D4

LL

HL

LH

I(L+R)

I(L-R)

I(MIC)

49.2msec

98.3msec

3.1kHz

Output Selector Control

Control Data

OUTPUT

D5 D6

LL
HL
LH

O(L+R)

O(L-R)

O(ECHOMIX)

SELECTOR

HH

I(CLKOFF)

MITSUBISHI
ELECTRIC

HH

O(NORMAL)

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Microphone Output

Switch Control

Control Data

MICOUT

D7

L

H

Mix volume Control

SWITCH

SW OFF

SW ON

M65849BFP

50

SINGLE CHIP SURROUND PROCESSOR

Feedback volume Control

Control Data

D11 D12 D13

LL L

HLL

FEEDBACK

VOLUME

-3dB

-5dB

Control Data

D8 D9 D10

LL L
HLL
LHL
HHL
LLH
HLH

HH

L
HHH

MIX VOLUME

+3dB

0dB

-3dB

-6dB

-9dB

-12dB

-15dB

-

LHL
HHL
LLH
HLH

HH

L
HHH

Address Control

Control Data

D14 D15

LL

DATA CANCEL

HL

-7dB

-9dB

-11dB

-13dB

-15dB

-

ADDRESS

MITSUBISHI
ELECTRIC

LH
HH

DATA LOAD

DATA CANCEL

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Construction of Diagram

Lch

in

29

(ECHOMIX)

INPUT
SEL

I(L+R)

31

MIC

I(MIC)

I(L-R)

in

M65849BFP

50

SINGLE CHIP SURROUND PROCESSOR

polar

polar

non -

27

32

non -

22

21

+

DELAY

OUTPUT
SEL

MIX

O(NORMAL)

VOL

-1

+

O(L+R)

O(L-R)

MIC OUT
SW

Lch

out

26

MIC

out

23

FB
VOL

28

Rch

in

•DELAY TIME
There are 8 kinds of Delay Time which are from 9.6ms to 196.6ms.

•FEEDBACK VOLUME
There are 8 kinds of ATT. level which are from -3dB to -15dB,- dB.

•MIX VOLUME
There are 8 kinds of ATT. level which are from +3dB to -15dB,- dB.

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

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

•MIC SWITCH

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

+

9

11

25

Rch

non -

polar

M 6 5 8 4 9 B F P

out

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M65849BFP

MITSUBISHI SOUND PROCESSOR ICs

SINGLE CHIP SURROUND PROCESSOR

When the IC is supplied Vcc, the reset circuit is on and after about 120ms (Vcc=5V C 24 =47µF) the
reset circuit is off automatically.

The Power On Reset

The conditions are as follows.

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

L L L L H L L L H H H H H H L H

9.2ms I(L+R) NORMAL

*1 The Reset Time

MICSW
OFF

-∞

-∞

SERIES

SERIES

50

DATA LOAD

The reset time depends on the external C of 24 pin and the time can be calculated
as follows.

The Reset Time (mS)=2.5 x c (mS)

Ex.) In The Case Of c=47µF

The Reset Time 2.5 x 47=117.5 (mS)

Clock oscillator circuit

This IC incorporates a current control type clock oscillator circuit in it, thus providing circuit
configuration just by connecting an Rc for current control pin 1 (MCLKCONT).
Fully internal clock supply prevents occurrence of undesired radiation without affecting any
external circuit.
The oscillator frequency fck is following.
fck=4MHz(Rc=22kΩ)

DC Current

1

Rc

MITSUBISHI
ELECTRIC

Clock
oscillator
circuit

Clock frequency:fck

9

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M65849BFP

MITSUBISHI SOUND PROCESSOR ICs

SINGLE CHIP SURROUND PROCESSOR

The Auto Muting

The auto muting is active upon the power-on and the changing delay time for rejecting the
shock noise.

•Upon Power-on

50

SERIES

SERIES

Reset Time

Power
On

•Upon Changing Delay Time

Cancel
Reset

Mute Time

Delay Signal Before
Change Mode

Mute Time

Cancel
Mute

Delay Signal After
Change Mode

Cancel Mute

The Mute Time is set by Delay Time as follows.

DELAY TIME

9.2 ~ 196.6 ms

MITSUBISHI
ELECTRIC

MUTE TIME

Typ.

410 ms

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M65849BFP

MITSUBISHI SOUND PROCESSOR ICs

SINGLE CHIP SURROUND PROCESSOR

The LPF Of The Input & Output Stage Of The Digital Delay

The circuit of the LPF is as follows.

50

SERIES

SERIES

C1

Internal of IC

SD

11 or 19 pin

10kΩ

12 or 20 pin 13 or 21 pin

10kΩ

SD

INPUT

LD

24kΩ

The accuracy of the internal resisters are about ±30%.

9.2 ~ 49.2 ms

98.3 ~ 196.6 ms

LD

DELAY TIME

24kΩ

C2

10kΩ

SD

LAD

-

+

S W

SD

(SHORT DELAY)

LD

(LONG DELAY)

C1,C2:External C

24kΩ

OUTPUT

The cut off frequency is calculated by the following formulas.

*

•Surround

1

fc=

2 x10kΩx C1xC2

•Echo

fc=

1

2 x24kΩx C1xC2

The quality factor (Q) is as follows under the conditions of both Short Delay & Long Delay.

1

C1

Q=

3

At all the cut off frequency is decided by the external C.
We recommend C1=0.0047µF and C2=0.001µF.
Under this condition, fc and Q are as follows.
Surround fc=7.3kHz Q=0.72
Echo fc=3.1kHz

* The Cut Off Frequency of LPF means the cut off frequency of the each stage (A/D & D/A)
and doesn't mean the total cut off frequency.

C2

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M65849BFP

SINGLE CHIP SURROUND PROCESSOR

Absolute Maximum Ratings

MITSUBISHI SOUND PROCESSOR ICs

50

SERIES

SERIES

No.

Vcc

Icc Circuit Current

Pd

Topr

Tstg

Recommended Operating Conditions

No.

Vcc

V

IH

Parameter Conditions Ratings

Supply voltage

Power dissipation

Operating Temperature

Storage temperature

Parameter conditions

Supply Voltage

High Input Voltage

3 4

Units

6.5
50

325

-20 ~ +75

-40 ~ +125

V

mA

mW

°C
°C

Limits

Units

Min.

4.5 5.0 5.5

5

2.4

Typ.

Max.

Vcc

V

V

V

fck

5

IL

Low Input Voltage

CLOCK Frequency

3 4

0

0.8

4 53

V

MHz

Thermal Derating

1000

800

600

460

400

200

0

0

25 50 75 100 125

Ambient Temperature Ta (°C)

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ELECTRIC

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M65849BFP

MITSUBISHI SOUND PROCESSOR ICs

SINGLE CHIP SURROUND PROCESSOR

Electrical Characteristics

(Ta=25°C,Vcc=5V,f=1kHz,Vi=200mVrms,fck=4MHz Unless Otherwise Noted)

Symbol

Parameter Conditions

Min.

Limits

Typ.

Max.

Units

50

SERIES

SERIES

Total

Icc

Td

Gv

THD

Vo max

No

Circuit Current

Delay Time

Voltage Gain

Output
Distortion

Maximum
Output Voltage

Output
Noise Voltage

No Signal

Refer to
Delay time Control

Td = 9.2ms
Td = 15.4ms
Td = 21.5ms
Td = 28.7ms

Td = 49.2ms
Td = 98.3ms
Td =147.5ms

Td = 196.6ms

30kHz LPF
THD = 10 %

Td = 9.2ms

Vi = 0mVrms

Td = 15.4ms

Vi = 0mVrms

Td = 21.5ms

Vi = 0mVrms

Td = 28.7ms

Vi = 0mVrms

Td = 49.2ms

Vi = 0mVrms

Td = 98.3ms

Vi = 0mVrms

Td =147.5ms

Vi = 0mVrms

Td =196.6ms

Vi=0mVrms

30kHz LPF
30kHz LPF

30kHz LPF
30kHz LPF

30kHz LPF
30kHz LPF
30kHz LPF

30kHz LPF

Rg=620Ω

JIS-A

Rg=620Ω

JIS-A

Rg=620Ω

JIS-A

Rg=620Ω

JIS-A

Rg=620Ω

JIS-A

Rg=620Ω

JIS-A

Rg=620Ω

JIS-A

Rg=620Ω

JIS-A

32 70 mA

7.8

13.1

18.3

24.5

41.8

83.6

9.2

15.4

21.5

28.7

49.2

98.3

147.5125.4 169.6

167.1

-3 3

196.6
0

0.3 0.6

0.3

0.3 0.6

0.5 1.0

0.7 1.4

1.0

1.5

2.0

0.7

1.0

-92 -80

-92

-87

-82

-77

10.6

17.7

24.7

33.0

56.6

113.0

226.1

0.6

2.0

3.0

4.0

-80

-80-92

-75-90

-75-90

-72

-70

-62

ms

dB

%

Vrms

dBV

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ELECTRIC

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M65849BFP

MITSUBISHI SOUND PROCESSOR ICs

SINGLE CHIP SURROUND PROCESSOR

RL=47kΩ

RL=47kΩ

THD=10%

6

VOLFBVOL

(Ta=25°C,Vcc=5V,f=1kHz,Vi=200mVrms,fck=4MHz Unless Otherwise Noted)

Limits

No.

Parameter

Conditions

Min.

Typ.

Max.

50

Units

SERIES

SERIES

Gv

THD

Vomax

No

Voff

Gv

THD

Vomax

No

CS

Voltage Gain

Maximum ATT.

Output Distortion

Maximum
Output Voltage

Output
Noise Voltage

Offset Voltage

Voltage Gain

Output Distortion

Maximum
Output Voltage

Output
Noise Voltage

Channel Separation

Volume max

Volume min

JIS-A

Volume max

30kHz LPF
Volume max

30kHz LPF

Volume max
JIS-A

Rg=620Ω

Mix Volume +3dB-0dB
voltage (3dB,0dB)

30kHz LPF

30kHz LPF

THD=10 %
DELAYOFF MODE

JIS-A
DMIXSW OFF

LchIN RchOUT
f=400Hz JIS-A

RL = 10kΩ

Rg=620Ω

Mix

-6
0

1.1

1.2

-3
3

-70 -60ATTMAX

0.15

1.4

-98

0-3 3

0.01

1.8

-98

-90

0

dB
dB

0.30 %

Vrms

-90

±1.6

dBV

mV

dB

0.03 %

Vrms

-90

-60

dBV

dB

Zi

Input Impedance

MITSUBISHI
ELECTRIC

21

30

kΩ

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1 4

M65849BFP

SINGLE CHIP SURROUND PROCESSOR

The Application Example

SEL

0.15µ

MITSUBISHI SOUND PROCESSOR ICs

50

SERIES

SERIES

32

INPUT

MIX
VOL

MCLK

1

22K

1µ 1µ 1µ

3031

NC

I(L+R)

I(MIC)

I(L-R)

µ-COM I/F

TEST1

2

3

µ-COM

+ + + + ++

272829

4 5 6

O(NORMAL) O(L+R)

*

0.1µ

2.2µ 2.2µ 2.2µ

2526

100µ 0.22µ

24

1/2Vcc

MIC OUT
SW

O(ECHOMIX)

O(L-R)

OUTPUT
SEL

-1

Vcc

7

8

*

0.1µ

TEST OUT

9

10

F.B
VOL

11

LPF

0.0047µ

12

0.001µ

20212223

LPF

13

0.001µ

0.0047µ

19

0.068µ

18

D/A

16kSRAM

MAIN LOGIC

A/D

14

15

*

0.068µ

*

17

GND

16

GND

0.1µ

MITSUBISHI
ELECTRIC

0.22µ

Vcc

100µ

The condensers of the "*" mark are recommended

less than ±5% relative accuracy.

Units:

( / 1 5 )

Resistor:Ω
Condenser:F

1 5