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MITSUBISHI SOUND PROCESSOR ICs
M65849BFP
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.
50
SERIES
SINGLE CHIP SURROUND PROCESSOR
PIN CONFIGURATION FEATURES
MCLKCONT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 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
*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
TEST1 CLOCK LATCH DATA ADCONT DACONT Vcc DELAYSOURCE OUT TEST OUT LPF1IN1 LPF1IN2
M65849BFP
29 28 27 26 25 24 23 22 21 20 19 18 17
RECOMMENDED OPERATING CONDITION
*Supply voltage range...................Vcc=4.5 ~ 5.5V Rated supply voltage.................Vcc=5V
LPF1OUT ADINTIN ADINTOUT GND
SYSTEM CONFIGURATION
MIX AMP
L ch IN
I(L+R)
INPUT SEL
OUTPUT SEL
O(NORMAL)
L ch OUT
DIGITAL DELAY/ECHO
MIC amp I(L-R)
MIX VOLUME
O(L+R) O(L-R)
MIC OUT SW
MIC ALC
MIC IN
I(MIC)
FEEDBACK VOLUME
O(ECHOMIX)
MIC OUT
MIX AMP
R ch IN
M65849BFP
R ch OUT
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MITSUBISHI SOUND PROCESSOR ICs
M65849BFP
Block Diagram
50
SERIES
SINGLE CHIP SURROUND PROCESSOR
DELAYOUT
DAINT OUT
18 D/A A/D 15
LPF2 OUT
Rch OUT
MVOL IN
Lch OUT
Lch IN
32
31
30 NC
29
28
27
26
25
24 1/2Vcc
MIC OUT SW
23
22
21
20
19
17
INPUT SEL
I(MIC) I(L+R) I(L-R)
+
+
LPF F.B VOL
O(NORMAL) O(L+R)
O(L-R)
O(ECHOMIX)
16kSRAM
MIX VOL
-1
OUTPUT SEL
MAIN LOGIC +
MCLK - COM I/F LPF
1
TEST1 2
Vcc 3 4 5 6 7 8 9
TEST OUT 10 11 12 13 14
GND 16
DELAYSOURCE OUT
TEST1
CLOCK
LATCH
DATA
LPF1IN1
ADCONT
DACONT
LPF1IN2
LPF1OUT
TEST OUT
ADINT IN
MCLKCONT
:Schmitt Trigger Buffer NC :Nonconnect(This terminal can use relay terminal)
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ADINT OUT
GND
Vcc
DAINT IN
LPF2 IN2
MIC IN
REF
NC
LPF2 IN1
MIC OUT
FVOL IN
Rch IN
MITSUBISHI SOUND PROCESSOR ICs
M65849BFP
50
SERIES
SINGLE CHIP SURROUND PROCESSOR
Pin Description
No.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Symbol
MCLKCONT TEST1 CLOCK LATCH DATA AD CONT DA CONT Vcc
Name
Oscillator Input Test pin CLOCK LATCH DATA A/D Control D/A Control Power Supply
I/O
I I I I I
Function
Controls builts-in clock generation circuit with external R
Test mode change "H" Normal / "L" Test
(Be sure connect to Vcc at Normal mode) Clock input via serial bas Latch input via serial bas Data input via serial bas Decide the time constant of A/D Decide the time constant of D/A
DELAYSOURCE Delay source output OUT TEST OUT LPF1 IN 1 LPF1 IN 2 LPF1 OUT AD INT IN AD INT OUT GND 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
O O I I O I O
(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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MITSUBISHI SOUND PROCESSOR ICs
M65849BFP
50
SERIES
SINGLE CHIP SURROUND PROCESSOR
No.
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
Symbol
DAINT IN DAINT OUT LPF 2 IN 1 LPF 2 IN 2 LPF 2 OUT FVOL IN MIC OUT REF Rch OUT Lch OUT DELAYOUT Rch IN Lch IN NC MIC IN MVOL IN
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 Feedback Volume Input Microphone Output Reference Rch Output Lch Output
DELAY Output
I/O
I
Function
Form Integrator With External C O I I O I O Feedback Volume Input Microphone Output 1/2 Vcc Output , Connect External C O O O I I Rch Mixing Output Lch Mixing Output Delay Signal Output Rch Input Lch Input
This terminal can use relay terminal for external
Form Low Pass Filter With External C,R
Rch Input Lch Input Nonconnect Microphone Input Mix Volume Input
I
Microphone Input Mix Volume Input
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MITSUBISHI SOUND PROCESSOR ICs
M65849BFP
Operation Mode Settings.
50
SERIES
SINGLE CHIP SURROUND PROCESSOR
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
D5
D6
D7
D8
D9
D10 D11 D12 D13 D14 D15
Data No. Control Block
D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 ADDRESS D15 FEED BACK Vcc MIX VOL INPUT SELECTOR OUTPUT SELECTOR MICOUT SW DELAY TIME
Control Explanation
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.
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MITSUBISHI SOUND PROCESSOR ICs
M65849BFP
50
SERIES
SINGLE CHIP SURROUND PROCESSOR
Description of Control Delay Time Control
CONTROL DATA
DELAY TIME 9.2msec 15.4msec 21.5msec 28.7msec 49.2msec 98.3msec 147.5msec 196.6msec
D0 L H L H L H L H
D1 L L H H L L H H
D2 L L L L H H H H
The Cut Off Frequency of LPF
7.3kHz
3.1kHz
Input Selector Control
Control Data
Output Selector Control
Control Data
INPUT SELECTOR
I(L+R) I(L-R) I(MIC) I(CLKOFF)
OUTPUT SELECTOR
O(L+R) O(L-R) O(ECHOMIX) O(NORMAL)
D3 L H L H
D4 L L H H
D5 L H L H
D6 L L H H
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MITSUBISHI SOUND PROCESSOR ICs
M65849BFP
50
SERIES
SINGLE CHIP SURROUND PROCESSOR
Microphone Output Switch Control
Control Data
D7 L H
MICOUT SWITCH
SW OFF SW ON
Feedback volume Control Control Data D11 D12 D13 L L L H H L L H H L L L L H H H H FEEDBACK VOLUME -3dB -5dB -7dB -9dB -11dB -13dB -15dB -
Mix volume Control
Control Data
H L H L H L H
MIX VOLUME +3dB 0dB -3dB -6dB -9dB -12dB
D8 L H L H L H L H
D9 D10 L L H H L L H H L L L L H H H H
Address Control -15dB
Control Data
-
ADDRESS D14 D15 L H L H L DATA CANCEL L H H DATA LOAD DATA CANCEL
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MITSUBISHI SOUND PROCESSOR ICs
M65849BFP
Construction of Diagram
50
SERIES
SINGLE CHIP SURROUND PROCESSOR
Lch in 29
(ECHOMIX)
27
non - polar
32
22
non - polar
21
+
Lch out 26
DELAY
INPUT SEL
OUTPUT SEL
MIX VOL
-1
O(NORMAL)
MIC OUT SW
I(L+R)
31 MIC in
I(MIC)
+
O(L+R)
MIC out 23
O(L-R) I(L-R)
FB VOL
+
9 11
28 Rch in
25 Rch out
non - polar
M65849BFP
*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,*MIX VOLUME There are 8 kinds of ATT. level which are from +3dB to -15dB,dB. 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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MITSUBISHI SOUND PROCESSOR ICs
M65849BFP
The Power On Reset
50
SERIES
SINGLE CHIP SURROUND PROCESSOR
When the IC is supplied Vcc, the reset circuit is on and after about 120ms (Vcc=5V C 24 =47F) 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. The Reset Time (mS)=2.5 x c (mS) In The Case Of c=47F The Reset Time 2.5 x 47=117.5 (mS)
Ex.)
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=22k)
DC Current 1 Rc
Clock oscillator circuit
Clock frequency:fck
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MITSUBISHI SOUND PROCESSOR ICs
M65849BFP
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SERIES
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 Cancel Reset
Mute Time Cancel Mute
*Upon Changing Delay Time
Delay Signal Before Change Mode
Delay Signal After 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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MITSUBISHI SOUND PROCESSOR ICs
M65849BFP
The LPF Of The Input & Output Stage Of The Digital Delay The circuit of the LPF is as follows. C2 C1
10k
50
SERIES
SINGLE CHIP SURROUND PROCESSOR
C1,C2:External C
Internal of IC
11 or 19 pin
12 or 20 pin
SD
13 or 21 pin
SD
10k
SD
10k
LAD
24k
INPUT
LD LD
-
OUTPUT
24k +
24k
The accuracy of the internal resisters are about 30%.
DELAY TIME 9.2 ~ 49.2 ms 98.3 ~ 196.6 ms
S
W SD
(SHORT DELAY)
LD
(LONG DELAY)
* The cut off frequency is calculated by the following formulas.
*Surround
fc=
*Echo
1 2 x10kx C1xC2
fc=
1 2 x24kx 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=0.0047F and C2=0.001F. 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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MITSUBISHI SOUND PROCESSOR ICs
M65849BFP
Absolute Maximum Ratings
50
SERIES
SINGLE CHIP SURROUND PROCESSOR
No.
Vcc Icc
Parameter
Supply voltage Circuit Current Power dissipation
Operating Temperature Storage temperature
Conditions
Ratings 6.5 50 325 -20 ~ +75 -40 ~ +125
Units V mA mW C C
Pd Topr Tstg
Recommended Operating Conditions
No. Vcc VIH
Parameter
Supply Voltage High Input Voltage
conditions
Min.
Limits
Units Typ. Max.
4.5
3 45
5.0
5.5 Vcc
V V
2.4
V IL fck
Low Input Voltage CLOCK Frequency
3
45
0 3 4
0.8 5
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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MITSUBISHI SOUND PROCESSOR ICs
M65849BFP
Electrical Characteristics
(Ta=25C,Vcc=5V,f=1kHz,Vi=200mVrms,fck=4MHz Unless Otherwise Noted)
50
SERIES
SINGLE CHIP SURROUND PROCESSOR
Limits Symbol Parameter
Total
Conditions Min. Typ. 32 7.8 13.1 18.3 9.2 15.4 21.5 28.7 49.2 Max. 70 10.6 17.7 24.7 33.0 56.6
No Signal
Units
Icc
Circuit Current
mA
Td
Delay Time
Refer to Delay time Control
24.5 41.8
ms
83.6 98.3 113.0 125.4 147.5 169.6 167.1 196.6 226.1 Gv
Voltage Gain
Td = 9.2ms Td = 15.4ms Td = 21.5ms 30kHz LPF 30kHz LPF 30kHz LPF 30kHz LPF 30kHz LPF 30kHz LPF 30kHz LPF 30kHz LPF
-3
0 0.3 0.3 0.3 0.5 0.7 1.0 1.5 2.0
3 0.6 0.6 0.6 1.0 1.4 2.0 3.0 4.0
dB
THD
Output Distortion
Td = 28.7ms Td = 49.2ms Td = 98.3ms Td =147.5ms Td = 196.6ms
%
Vo max
Maximum Output Voltage
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 Rg=620 JIS-A Rg=620 JIS-A Rg=620 JIS-A Rg=620 JIS-A Rg=620 JIS-A Rg=620 JIS-A Rg=620 JIS-A Rg=620 JIS-A
0.7
1.0 -92 -92 -92 -90 -90 -87 -82 -77 -80 -80 -80 -75 -75 -72 -70 -62
Vrms
No
Output Noise Voltage
dBV
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M65849BFP
50
SERIES
SINGLE CHIP SURROUND PROCESSOR
(Ta=25C,Vcc=5V,f=1kHz,Vi=200mVrms,fck=4MHz Unless Otherwise Noted)
Limits No. Parameter Conditions Min. Gv ATTMAX THD Vomax No Voff Gv THD Vomax No CS Zi
Voltage Gain Maximum ATT. Output Distortion Maximum Output Voltage Output Noise Voltage Offset Voltage Voltage Gain
Output Distortion 30kHz LPF Volume max Volume min JIS-A Volume max 30kHz LPF RL=47k Volume max 30kHz LPF RL=47k Volume max JIS-A Rg=620
FB VOL Mix VOL
Units
Typ. -3 3 -70 0.15
Max. 0 6 -60 0.30 dB dB %
Vrms
-6 0
THD=10%
1.1
1.4 -98 -90 1.6
dBV
mV
Mix Volume +3dB-0dB voltage (3dB,0dB)
-3
0 0.01
3 0.03
dB %
Vrms
Maximum Output Voltage Output Noise Voltage
30kHz LPF THD=10 %
RL = 10k
1.2
1.8 -98 -90 -90 -60
DELAYOFF MODE Rg=620 JIS-A
dBV dB k
DMIXSW OFF Channel Separation LchIN RchOUT f=400Hz JIS-A
Input Impedance
21
30
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MITSUBISHI SOUND PROCESSOR ICs
M65849BFP
50
SERIES
SINGLE CHIP SURROUND PROCESSOR
The Application Example
0.15
1 +
1 +
1 +
2.2 +
2.2 +
100 +
2.2
0.22
0.001
0.0047
0.068
32
31
30 NC
29
28
27
26
25
24 1/2Vcc
23
22
21
20
19
18
*
17
INPUT SEL
I(MIC) I(L+R) I(L-R) O(NORMAL) O(L+R) O(L-R)
MIC OUT SW
O(ECHOMIX)
LPF F.B VOL 16kSRAM
D/A
MIX VOL MCLK -COM I/F Vcc 4 5 6 7 8
-1
OUTPUT SEL
MAIN LOGIC
LPF
A/D
1
TEST1 2 3
TEST OUT 9 10 11 12 13 14 15
GND 16
22K
-COM
0.1
*
0.1 0.0047
*
0.001
0.068
*
GND
0.22
Vcc
0.1 100
The condensers of the "*" mark are recommended less than 5% relative accuracy.
Units: Resistor: Condenser:F
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