ELECTRIC
MITSUBISHI
M65850P/FP
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
MITSUBISHI SOUND PROCESSOR ICs
( / 11 )
KARAOKE
50SERIES
SERIES
DIGITAL ECHO(DIGITAL DELAY)
◊ 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.
Supply voltage range • • • • • Vcc=3.5~5.5V
Rated supply voltage • • • • • • • • • • Vcc=5V
RECOMMENDED OPERATING CONDITION
SYSTEM CONFIGURATION
• 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)
DESCRIPTION
1
Outline 1 4 P 4 ( P )
HPF MIX
BASS
BASS
MIX
MIX
MIC VOL
MIC VOL
MIX MIX
ECHO VOLECHO
L
R
MIC1
MIC2
MIC AMP
MIC AMP
L
R
HPF
LPF KEY CONTROL
RAM
MIX
VOCAL
CUT
M65850P/FP
PACKAGE
2.54mm pitch 300mil DIP
Note : Dolby is the registered trademarks of dolby laboratories licensing corporation.
Outline 1 6 P 2 N ( FP )
1.27mm pitch 300mil SOP
FEATURES
ELECTRIC
MITSUBISHI
M65850P/FP
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
MITSUBISHI SOUND PROCESSOR ICs
( / 11 )
KARAOKE
50SERIES
SERIES
DIGITAL ECHO(DIGITAL DELAY)
14
REF
GND
VCC
LPF1 IN
LPF1 OUT CLOCK
LPF2 OUT
LPF2 IN
OP2 OUT
OP2 IN
OP1 IN
OP1 OUT
CC2
CC1
M 6 5 8 5 0 P
2
PIN CONFIGURATION
14
13
12
11
10
1
2
3
4
5
6
78
9
14
REF
GND
VCC
LPF1 IN
LPF1 OUT CLOCK
LPF2 OUT
LPF2 IN
OP2 OUT
OP2 IN
OP1 IN
OP1 OUT
CC2
CC1
M 6 5 8 5 0 F P
15
14
13
12
11
10
1
2
3
4
5
6
7
89
16
NC NC
< M65850P >
< M65850FP >
ELECTRIC
MITSUBISHI
M65850P/FP
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
MITSUBISHI SOUND PROCESSOR ICs
( / 11 )
KARAOKE
50SERIES
SERIES
DIGITAL ECHO(DIGITAL DELAY)
IC INTERNAL BLOCK DIAGRAM
1 142 3 4 5
6
7
891011
12
13
MAIN CONTROL
AUTO
RESET
GND
CC2
CC1
OP1INOP1OUT
LPF1OUTLPF1IN
20Kbit
SRAM
VCC
REF
OP2IN OP2OUT LPF2IN LPF2OUT
CLOCK
OSCILLATOR
CLOCK
RESET MO
M I
LPF1
D1 DO0
DO1
A / D
LPF2
D / A
3
1/2 Vcc
2 153 4 5 6
7
8
9101112
13
14
MAIN CONTROL
AUTO
RESET
GND
CC2
CC1
OP1INOP1OUT
LPF1OUTLPF1IN
20Kbit
SRAM
VCC
REF
OP2IN OP2OUT LPF2IN LPF2OUT
CLOCK
OSCILLATOR
CLOCK
RESET MO
M I
LPF1
D1 DO0
DO1
A / D
LPF2
D / A
1/2 Vcc
16
NC
1
NC
< M65850P >
< M65850FP >
ELECTRIC
MITSUBISHI
M65850P/FP
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
MITSUBISHI SOUND PROCESSOR ICs
( / 11 )
KARAOKE
50SERIES
SERIES
DIGITAL ECHO(DIGITAL DELAY)
PIN DESCRIPTION
Pin No.
Symbol Name I/O Function
2
3
4
5
6
7
8
9
10
11
12
13
14
REF
GND
VCC
GND
Supply voltage
-
Analog reference voltage 1/2Vcc
To apply 3.5 ~ 5.5 V power
(Rated voltage : 5 V)
CC1
CC2
CLOCK
OP1 OUT
OP1 IN
Current control 1
Current control 2
Operational
Operational
-
-
O
I
ADM control of A-D converter
ADM control of D-A converter
OP2 IN Operational I
OP2 OUT Operational O
LPF1 OUT
LPF1 IN
Low pass filter 1
output
Low pass filter 1
input
O
ITo form input-side low pass filter by
connecting external capacitor and resistor
LPF2 IN
LPF2 OUT
Low pass filter 2
input
Low pass filter 2
output O
I
To form input-side low pass filter by
connecting external capacitor and resistor
-
I
I
-
Clock generator To form clock generator by connecting
external resistor
4
amplifier1 output
amplifier 1 input
amplifier 2 output
amplifier 2 input
Reference
input
To form A-D conversion integrator by
connecting external capacitor
To form D-A conversion integrator by
connecting external capacitor
1
2
3
4
5
6
7
8
9
10
11
12
13
14
P FP
15
116 NC No connection -
-
••
ELECTRIC
MITSUBISHI
M65850P/FP
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
MITSUBISHI SOUND PROCESSOR ICs
( / 11 )
KARAOKE
50SERIES
SERIES
DIGITAL ECHO(DIGITAL DELAY)
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED OPERATING CONDITION
Vcc Supply voltage V
Icc
Pd
Topr
Tstg
Power dissipation
Operating temperature
Storage temperature
Circuit current mA
°C
°C
6.0
100
800(P),550(FP)
-20 ~ 75
-40 ~ 125
( Ta = 25°C, unless otherwise noted )
Symbol Parameter Ratings Unit
Conditions
5
Vcc Supply Voltage 5V
3.5 5.5
Limits
Min Typ Max
Symbol Parameter Unit
fck Clock frequency MHz
0.8 11.0
mW
Conditions
Icc
Gv
Vomax
THD
No
Circuit current
Voltage gain
Output noise voltage
No signal input
RL=47kΩ
THD=10%
30kHz LPF
DIN-AUDIO
13
0
1.0
1.2
-85
mA
dB
V(rms)
%
dBV
Parameter
Symbol Test conditions
Limits
Min Typ Unit
(Vcc=5V,f=1kHz,Vi=100mV(rms),fck=1MHz,Ta=25°C, unless otherwise noted)
0.7
3.0
-70
25
-3.0 3.0
5
fck Clock frequency 1MHz
Rc=120kΩ
ELECTRICAL CHARACTERISTICS
Max
Maximum output
voltage
Total harmonic
distortion
0.85 1.15
ELECTRIC
MITSUBISHI
M65850P/FP
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
MITSUBISHI SOUND PROCESSOR ICs
( / 11 )
KARAOKE
50SERIES
SERIES
DIGITAL ECHO(DIGITAL DELAY)
FUNCTION DESCRIPTION
6
13
The M65850P incorporates a current control type clock
oscillator circuit in it, thus providing circuit configuration just by
connecting a resistor for current control to pin 13 ( FP:pin 14 )
CLOCK.
Fully internal clock supply prevents occurrence of undesired
radiation without affecting any external circuit.
The oscillator frequency is:
= 1 MHz. ( Rc=120kΩ )
The resistor for current control can be calculated using the
following equation.
Rc K/Clock frequency (fck) [ Hz ]
K is the coefficient, and changes according to clock frequency
,as shown below.
Rc
Clock
frequency : fck
Clock
oscillator
circuit
(2) Clock oscillator circuit
Vcc
Clock Frequency
( Hz ) K value
11.0M~5.5M
5.3M~1.64M
1.62M~800K
0.8 X 10
1.0 X 10
1.2 X 10
11
11
11
The delay time can be calculated by the equation :
Td=8N / ( N=the number of memory bits=20480 )
When fck=1MHz ( fs=125kHz), Td can be set at 164ms.
« Reference »
The M65850P/FP adopts ADM ( Adaptive Delta Modulation ) system in A-D,D-A
converters.
The sampling frequency can be calculated by the following equation :
fs=clock frequency / 8 ( Hz )
For clock frequency ( )=1MHz, the calculated sampling frequency is :
fs=1MHz / 8 =125kHz
Delay Time
( ms )
15~30
31~100
101~200
Rc ( Ω )
7.5k~15k
18k~62k
75k~150k
(1) Delay time Td
(FP:14)
*
*
••
ELECTRIC
MITSUBISHI
M65850P/FP
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
MITSUBISHI SOUND PROCESSOR ICs
( / 11 )
KARAOKE
50SERIES
SERIES
DIGITAL ECHO(DIGITAL DELAY)
7
Delay time
( ms ) signal pass
band ( Hz )
Clock
frequency( Hz ) LPF
R1( Ω ) R2 ( Ω ) C1 (F) C2 (F)
15~30
31~100
101~200
7k
5k
3k
15k
13k
16k
15k
13k
16k
3300p
4700p
6800p
680p
1000p
1500p
11.0M ~ 5.5M
5.3M ~ 1.64M
1.62M ~ 800k
(Td=20ms)
0.2%
(Td=50ms)
0.3%
(Td=160ms)
1.2%
•Test Condition is Vcc=5V,Vi=100mV(rms),f=1kHz,Ta=25°C
Distortion
(Reference value)
(%)
(3) Input/output LPF
It is necessary to change the LPF setting ( signal pass band,fsig )
of digital echo according to the clock frequency. ( Refer to the table below )
1 2
REF
9 8
REF
C2
R1
R1
R2
C1
C2
R1
R1
R2
C1
LPF1 LPF2
fsig= 2π C1 • C2 • R1 • R2
1
(FP:2)
** * (FP:3)
*(FP:10)
** *(FP:9)
*
••
•
ELECTRIC
MITSUBISHI
M65850P/FP
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
MITSUBISHI SOUND PROCESSOR ICs
( / 11 )
KARAOKE
50SERIES
SERIES
DIGITAL ECHO(DIGITAL DELAY)
8
(4) Mute
When power is turned on, the mute function works automatically to
prevent noise generation. (Here, however, "mute" means the
function which prevents noise generation after the reset time.)
POWER
ON TIME MUTE
OFF TIME
WHEN POWER IS ON (fck=1MHz)
MUTE PERIOD
(ABOUT 260ms)
RESET
PERIOD
Icc
Gv
Vomax
THD
No
Circuit current
Voltage gain between
Maximum output voltage
Output distortion
Output noise voltage
No-signal time
RL=47kΩ
THD=10%
30kHz LPF
DIN-AUDIO
ParameterSymbol Remarks
S 1 S 1 4
2
1
1
1
2 1
1
1
1
2
TEST CONDITIONS
input and output
ELECTRIC
MITSUBISHI
M65850P/FP
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
MITSUBISHI SOUND PROCESSOR ICs
( / 11 )
KARAOKE
50SERIES
SERIES
DIGITAL ECHO(DIGITAL DELAY)
TEST CIRCUIT
9
Units
Resistance : Ω
Capacitance:F
1
2
3
4
5
6
78
9
10
11
12
13
14
REF
GND
VCC
LPF1 IN
LPF1 OUT CLOCK
LPF2 OUT
LPF2 IN
OP2 OUT
OP2 INOP1 IN
OP1 OUT
CC2
CC1
+
1500p
6800p
0.068µ
0.22µ 0.22µ
1500p
16k 6800p
0.068µ
47µ
120k
0.1µ
+
+
1µ
1µ
+
47µ 16k 16k
16k
16k
16k
Vo
~
47k
(1)
(2)
Vi
51
S1
(1)
(2) S14
16
2
3
4
5
6
7
89
10
11
12
13
14
15
REF
GND
VCC
LPF1 IN
LPF1 OUT CLOCK
LPF2 OUT
LPF2 IN
OP2 OUT
OP2 INOP1 IN
OP1 OUT
CC2
CC1
+
1500p
6800p
0.068µ
0.22µ 0.22µ
1500p
16k 6800p
0.068µ
47µ
120k
0.1µ
+
+
1µ
1µ
+
47µ 16k 16k
16k
16k
16k
Vo
47k
(1)
(2)
Vi
51
S1
(1)
(2) S14
1
< M65850P >
< M65850FP >
~
~
~
NC
NC
ELECTRIC
MITSUBISHI
M65850P/FP
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
MITSUBISHI SOUND PROCESSOR ICs
( / 11 )
KARAOKE
50SERIES
SERIES
DIGITAL ECHO(DIGITAL DELAY)
10
APPLICATION EXAMPLE
• ECHO Delay time 164ms (Signal pass band 3kHz)
Units
Resistance : Ω
Capacitance : F
1
2
3
4
5
6
78
9
10
11
12
13
14
REF
GND
VCC
LPF1 IN
LPF1 OUT CLOCK
LPF2 OUT
LPF2 IN
OP2 OUT
OP2 INOP1 IN
OP1 OUT
CC2
CC1
+
1500p
6800p
0.068µ
0.22µ 0.22µ
1500p
16k 6800p
0.068µ
47µ
120k
0.1µ
+
+
1µ
1µ
+
47µ 16k 16k
16k
16k
16k
16
2
3
4
5
6
7
89
10
11
12
13
14
15
REF
GND
VCC
LPF1 IN
LPF1 OUT CLOCK
LPF2 OUT
LPF2 IN
OP2 OUT
OP2 INOP1 IN
OP1 OUT
CC2
CC1
+
1500p
6800p
0.068µ
0.22µ 0.22µ
1500p
16k 6800p
0.068µ
47µ
120k
0.1µ
+
+
1µ
1µ
+
47µ 16k 16k
16k
16k
16k
1
< M65850P >
< M65850FP >
OUT
IN
0.015µ 50k
FEEDBACK GAIN SETTING VOLUME
0.015µ 50k
FEEDBACK GAIN SETTING VOLUME
OUT
IN
NC
NC
ELECTRIC
MITSUBISHI
M65850P/FP
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
MITSUBISHI SOUND PROCESSOR ICs
( / 11 )
KARAOKE
50SERIES
SERIES
DIGITAL ECHO(DIGITAL DELAY)
11
• SURROUND Delay time 20ms ( Signal pass band 7kHz )
Units
Resistance : Ω
Capacitance : F
1
2
3
4
5
6
7 8
9
10
11
12
13
14
REF
GND
VCC
LPF1 IN
LPF1 OUT CLOCK
LPF2 OUT
LPF2 IN
OP2 OUT
OP2 INOP1 IN
OP1 OUT
CC2
CC1
+
680p
3300p
0.047µ
0.15µ 0.15µ
680p
15k 3300p
0.047µ
47µ
11k0.1µ
+
+
1µ
1µ
+
47µ 15k 15k
15k
15k
15k
16
NC
NC
2
3
4
5
6
7
89
10
11
12
13
14
15
REF
GND
VCC
LPF1 IN
LPF1 OUT CLOCK
LPF2 OUT
LPF2 IN
OP2 OUT
OP2 INOP1 IN
OP1 OUT
CC2
CC1
+
680p
3300p
0.047µ
0.15µ 0.15µ
680p
15k 3300p
0.047µ
47µ
11k
0.1µ
+
+
1µ
1µ
+
47µ 15k 15k
15k
15k
15k
1
< M65850P >
< M65850FP >
OUT
IN
OUT
IN