Mitsubishi M658489BFP Single chip surround processor Datasheet

MITSUBISHI SOUND PROCESSOR ICs
50
SERIES
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
32
TEST1
2
31
•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
MIC IN
CLOCK
3
30
NC
LATCH
4
29
Lch IN
DATA
5
28
Rch IN
27
DELAY OUT
26
Lch OUT
25
Rch OUT
24
REF
23
MIC OUT
22
FVOL IN
21
LPF2OUT
20
RECOMMENDED OPERATING CONDITION
LPF2IN2
•Supply voltage range...................Vcc=4.5 ~ 5.5V
Rated supply voltage.................Vcc=5V
ADCONT
6
DACONT
7
Vcc
8
DELAYSOURCE
OUT
M65849BFP
1
MCLKCONT
9
TEST OUT
10
LPF1IN1
11
MVOL IN
LPF1IN2
12
LPF1OUT
13
ADINTIN
14
19
LPF2IN1
ADINTOUT
15
18
DAINTOUT
16
17
DAINTIN
GND
SYSTEM CONFIGURATION
MIX AMP
L ch
IN
INPUT
SEL
I(L+R)
O(NORMAL)
DIGITAL
DELAY/ECHO
MIC
ALC
MIX
VOLUME
O(L+R)
I(L-R)
MIC amp
O(L-R)
MIC IN
I(MIC)
L ch OUT
OUTPUT
SEL
FEEDBACK
VOLUME
MIC OUT
SW
O(ECHOMIX)
MIC OUT
MIX AMP
R ch
IN
R ch OUT
M65849BFP
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MITSUBISHI SOUND PROCESSOR ICs
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
Rch OUT
REF
26
25
24
23
22
21
20
19
DAINT IN
Lch OUT
27
DAINT OUT
DELAYOUT
28
LPF2 IN1
Rch IN
29
LPF2 IN2
Lch IN
30
LPF2 OUT
NC
31
FVOL IN
MIC IN
32
MIC OUT
MVOL IN
Block Diagram
18
17
NC
+
1/2Vcc
I(MIC)
MIC OUT
SW
+
INPUT
SEL
I(L+R)
O(NORMAL) O(L+R)
O(L-R)
O(ECHOMIX)
F.B
VOL
16kSRAM
OUTPUT
SEL
-1
MIX
VOL
D/A
LPF
I(L-R)
+
MAIN LOGIC
MCLK
12
13
14
15
GND
16
GND
11
ADINT OUT
DACONT
10
ADINT IN
ADCONT
9
LPF1OUT
DATA
8
LPF1IN2
7
LPF1IN1
6
TEST OUT
5
TEST OUT
DELAYSOURCE
OUT
4
Vcc
3
LATCH
Vcc
CLOCK
TEST1
MCLKCONT
1
TEST1
2
A/D
LPF
µ - COM I/F
:Schmitt Trigger Buffer
NC :Nonconnect(This terminal can use relay terminal)
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MITSUBISHI SOUND PROCESSOR ICs
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
Pin Description
No.
Symbol
1
MCLKCONT
Oscillator Input
I
2
TEST1
Test pin
I
3
CLOCK
CLOCK
I
Clock input via serial bas
4
LATCH
LATCH
I
Latch input via serial bas
5
DATA
DATA
I
Data input via serial bas
6
AD CONT
A/D Control
Decide the time constant of A/D
7
DA CONT
D/A Control
Decide the time constant of D/A
8
Vcc
Power Supply
9
Name
Function
I/O
DELAYSOURCE
Delay source output
OUT
O
10
TEST OUT
Test output
O
11
LPF1 IN 1
Low Pass Filter 1 Input 1
I
12
LPF1 IN 2
Low Pass Filter 1 Input 2
I
13
LPF1 OUT
Low Pass Filter 1 Output
O
14
AD INT IN
A/D Integrator Input
I
15
AD INT OUT
A/D Integrator Output
O
16
GND
GND
Controls builts-in clock generation circuit
with external R
Test mode change "H" Normal / "L" Test
(Be sure connect to Vcc at Normal mode)
(L+R) or( L-R) or (MIC) signal Output
Memory /Mute /Sampling Data Output (Test mode)
(Be sure to open at Normal mode)
Prefilter placed before A/D convertor for
digital delay
To form D/A convertor Integrator by connecting
external capacitor
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
No.
Symbol
Function
I/O
Name
17
DAINT IN
D/A Integrator Input
I
18
DAINT OUT
D/A Integrator Output
O
19
LPF 2 IN 1
Low Pass Filter 2 Input1
I
20
LPF 2 IN 2
Low Pass Filter 2 Input 2
I
21
LPF 2 OUT
Low Pass Filter 2 Output
O
22
FVOL IN
Feedback Volume Input
I
Feedback Volume Input
23
MIC OUT
Microphone Output
O
Microphone Output
24
REF
Reference
25
Rch OUT
Rch Output
O
Rch Mixing Output
26
Lch OUT
Lch Output
O
Lch Mixing Output
27
DELAYOUT
DELAY Output
O
Delay Signal Output
28
Rch IN
Rch Input
I
Rch Input
29
Lch IN
Lch Input
I
Lch Input
30
NC
Nonconnect
31
MIC IN
Microphone Input
32
MVOL IN
Mix Volume Input
Form Integrator With External C
Form Low Pass Filter With External C,R
1/2 Vcc Output , Connect External C
This terminal can use relay terminal for external
I
Microphone Input
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.
4
LATCH
3
CLOCK
5
DATA
D0
D1
D2
D3
D4
Data No. Control Block
D5
D6
D7
D8
D9
D10 D11 D12 D13 D14 D15
Control Explanation
D0
D1
DELAY TIME
There are 8 kinds of Delay Time which are
from 9.2ms to 196.6ms.
D2
D3
INPUT
SELECTOR
This is the input selector which selects (CLOCKOFF),(L+R),
(L-R) or( MIC).
D6
OUTPUT
SELECTOR
This is the output selector which selects (L+R),(L-R),
(ECHOMIX) or (NORMAL).
D7
MICOUT SW
This is the ON/OFF switch for the Microphone signal.
D4
D5
D8
D9
MIX VOL
There are 8 kinds of ATT. level which are from +3dB to
-15dB,- dB(3dB step).
D10
D11
D12
D13
FEED
BACK
Vcc
There are 8 kinds of ATT. level which are from -3dB
to -15dB,- dB(2dB step).
D14
ADDRESS
D14=(L),D15=(H)DATA Load,the others cancel.
D15
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
Description of Control
Delay Time Control
CONTROL DATA
DELAY TIME
D0
D1
D2
L
L
L
9.2msec
H
L
L
15.4msec
L
H
L
21.5msec
H
H
L
28.7msec
L
L
H
49.2msec
H
L
H
98.3msec
L
H
H
147.5msec
H
H
H
196.6msec
The Cut Off
Frequency
of LPF
7.3kHz
3.1kHz
Input Selector Control
Control Data
D3
D4
L
L
H
Output Selector Control
Control Data
INPUT SELECTOR
OUTPUT SELECTOR
D5
D6
I(L+R)
L
L
O(L+R)
L
I(L-R)
H
L
O(L-R)
L
H
I(MIC)
L
H
O(ECHOMIX)
H
H
I(CLKOFF)
H
H
O(NORMAL)
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
Microphone Output
Switch Control
Control Data
D7
MICOUT
SWITCH
L
SW OFF
H
SW ON
Feedback volume Control
Control Data
D11 D12 D13
Mix volume Control
Control Data
MIX VOLUME
FEEDBACK
VOLUME
L
L
L
-3dB
H
L
L
-5dB
L
H
L
-7dB
D8
D9 D10
L
L
L
+3dB
H
H
L
-9dB
H
L
L
0dB
L
L
H
-11dB
L
H
L
-3dB
H
L
H
-13dB
H
H
L
-6dB
L
H
H
-15dB
L
L
H
-9dB
H
H
H
-
H
L
H
-12dB
L
H
H
-15dB
Address Control
Control Data
H
H
H
ADDRESS
-
D14 D15
L
L
DATA CANCEL
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H
L
L
H
DATA LOAD
H
H
DATA CANCEL
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MITSUBISHI SOUND PROCESSOR ICs
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
Construction of Diagram
Lch
in
27
non - polar
32
22
non - polar
Lch
out
26
21
+
29
(ECHOMIX)
OUTPUT
SEL
DELAY
INPUT
SEL
MIX
VOL
O(NORMAL)
-1
I(L+R)
31
I(MIC)
MIC OUT
SW
O(L+R)
+
MIC
out
23
O(L-R)
MIC
in
28
Rch
in
I(L-R)
FB
VOL
+
9
11
non - polar
M65849BFP
25
Rch
out
•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.
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
The Power On Reset
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 conditions are as follows.
D0
L
D1 D2
L
L
9.2ms
D3 D4 D5 D6 D7 D8
L
H
L
L
L
H
MICSW
I(L+R) NORMAL OFF
D9 D10 D11 D12 D13 D14 D15
H
H
H
H
H
L
H
DATA LOAD
-∞
-∞
*1 The Reset Time
The reset time depends on the external C of 24 pin and the time can be calculated
as follows.
Ex.)
The Reset Time (mS)=2.5 x c (mS)
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
Clock
oscillator
circuit
Rc
Clock frequency:fck
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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
Reset Time
Power
On
Mute Time
Cancel
Reset
Cancel
Mute
•Upon Changing Delay Time
Delay Signal After
Change Mode
Delay Signal Before
Change Mode
Mute Time
Cancel Mute
The Mute Time is set by Delay Time as follows.
DELAY TIME
9.2 ~ 196.6 ms
MUTE TIME
Typ.
410 ms
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
The LPF Of The Input & Output Stage Of The Digital Delay
The circuit of the LPF is as follows.
C2
C1,C2:External C
C1
Internal of IC
11 or 19 pin
SD
10kΩ
SD
10kΩ
SD
12 or 20 pin
10kΩ
LAD
INPUT
13 or 21 pin
24kΩ
LD
LD
24kΩ
OUTPUT
24kΩ
+
The accuracy of the internal resisters are about ±30%.
S
DELAY TIME
9.2 ~ 49.2 ms
W
SD
(SHORT DELAY)
98.3 ~ 196.6 ms
LD
(LONG DELAY)
* The cut off frequency is calculated by the following formulas.
•Surround
1
fc=
2 x10kΩx
C1xC2
•Echo
1
fc=
2 x24kΩx
C1xC2
The quality factor (Q) is as follows under the conditions of both Short Delay & Long Delay.
Q=
1
3
C1
C2
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.
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SINGLE CHIP SURROUND PROCESSOR
Absolute Maximum Ratings
No.
Parameter
Vcc
Conditions
Ratings
Units
Supply voltage
6.5
V
Icc
Circuit Current
50
mA
Pd
Power dissipation
325
mW
Topr
Operating Temperature
-20 ~ +75
°C
Tstg
Storage temperature
-40 ~ +125
°C
Recommended Operating Conditions
No.
Parameter
Limits
conditions
Units
Min.
Typ.
Max.
4.5
5.0
5.5
V
Vcc
Supply Voltage
V IH
High Input Voltage
3
4 5
2.4
Vcc
V
V IL
Low Input Voltage
3
4 5
0
0.8
V
fck
CLOCK Frequency
5
MHz
3
4
Thermal Derating
1000
800
600
460
400
200
0
0
25
50
75
100 125
Ambient Temperature Ta (°C)
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SINGLE CHIP SURROUND PROCESSOR
Electrical Characteristics
(Ta=25°C,Vcc=5V,f=1kHz,Vi=200mVrms,fck=4MHz Unless Otherwise Noted)
Limits
Symbol Parameter
Units
Conditions
Min.
Total
Icc
Td
Circuit Current
Delay Time
Typ.
Max.
32
70
7.8
13.1
9.2
15.4
10.6
17.7
18.3
21.5
24.7
24.5
41.8
28.7
49.2
33.0
56.6
No Signal
Refer to
Delay time Control
mA
ms
83.6
98.3 113.0
125.4 147.5 169.6
167.1 196.6 226.1
Gv
THD
Vo max
No
Voltage Gain
Output
Distortion
Maximum
Output Voltage
Output
Noise Voltage
-3
0
3
dB
Td = 9.2ms
30kHz LPF
0.3
0.6
Td = 15.4ms
30kHz LPF
0.3
Td = 21.5ms
30kHz LPF
0.3
0.6
0.6
Td = 28.7ms
30kHz LPF
0.5
1.0
Td = 49.2ms
30kHz LPF
0.7
1.4
Td = 98.3ms
30kHz LPF
1.0
2.0
Td =147.5ms
30kHz LPF
1.5
3.0
Td = 196.6ms
30kHz LPF
2.0
4.0
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
0.7
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
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Vrms
1.0
-92
-80
-92
-80
-92
-80
-90
-75
-90
-75
-87
-72
-82
-70
-77
-62
dBV
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
(Ta=25°C,Vcc=5V,f=1kHz,Vi=200mVrms,fck=4MHz Unless Otherwise Noted)
Limits
No.
Parameter
Units
Conditions
Min.
Gv
Voltage Gain
Volume max
ATTMAX
Maximum ATT.
Volume min
JIS-A
THD
Output Distortion
Vomax
Maximum
Output Voltage
No
Output
Noise Voltage
Voff
Offset Voltage
Gv
Volume max
30kHz LPF
RL=47kΩ
Volume max
30kHz LPF
RL=47kΩ
Volume max
JIS-A
Rg=620Ω
FB
VOL
Mix
VOL
THD=10%
-6
0
1.1
Typ.
Max.
-3
3
0
6
dB
-70
-60
dB
0.15
0.30
%
-98
-90
dBV
±1.6
mV
0
3
dB
0.01
0.03
%
Mix Volume +3dB-0dB
voltage (3dB,0dB)
-3
Voltage Gain
30kHz LPF
Vrms
1.4
THD
Output Distortion
Vomax
Maximum
Output Voltage
30kHz LPF
THD=10 %
No
Output
Noise Voltage
DELAYOFF MODE
Rg=620Ω
JIS-A
-98
-90
dBV
DMIXSW OFF
Channel Separation LchIN
RchOUT
f=400Hz
JIS-A
-90
-60
dB
CS
Zi
RL = 10kΩ
Input Impedance
1.2
21
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Vrms
1.8
30
kΩ
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SINGLE CHIP SURROUND PROCESSOR
The Application Example
0.15µ
32
1µ
1µ
1µ
+
+
+
31
30
NC
29
28
27
2.2µ
2.2µ
+
+
26
100µ
0.001µ
0.22µ
2.2µ
0.0047µ
0.068µ
+
24
25
23
22
21
20
19
18
*
17
1/2Vcc
MIC OUT
SW
INPUT
SEL
I(MIC)
I(L+R)
O(NORMAL) O(L+R)
O(L-R)
O(ECHOMIX)
F.B
VOL
16kSRAM
OUTPUT
SEL
-1
MIX
VOL
D/A
LPF
I(L-R)
MAIN LOGIC
MCLK
1
TEST1
2
3
Vcc
4
5
7
6
*
22K
µ-COM
A/D
LPF
µ-COM I/F
0.1µ
8
TEST OUT
9
11
10
12
13
14
15
*
0.1µ
0.001µ
0.068µ
*
GND
16
GND
0.0047µ
0.22µ
Vcc
0.1µ
100µ
The condensers of the "*" mark are recommended
less than ±5% relative accuracy.
Units: Resistor:Ω
Condenser:F
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