Old Company Name in Catalogs and Other

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On April 1st, 2010, NEC Electronics Corporation merged with Renesas Technology
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April 1st, 2010
Renesas Electronics Corporation
Issued by: Renesas Electronics Corporation (http://www.renesas.com)
Send any inquiries to http://www.renesas.com/inquiry.
Notice
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M65851FP
Single Chip Karaoke Processor
REJ03F0172-0201
Rev.2.01
Jan 25, 2008
Description
The M65851FP is an LSI that not only contains circuits (echo and key control) necessary for Karaoke but also improves
other peripheral functions.
This IC has full peripheral functions including vocal cut, phase shifter, equalizer, detection of intervals between songs,
digital surround, and Karaoke scoring. It is therefore suitable not only for dedicated Karaoke units but also for radio
cassette tape recorders, TV, VCR, and miniature unit audio systems with Karaoke function.
Features
•
•
•
•
Capable of composing echo and key control circuits necessary for Karaoke system with a single chip
Echo circuit is capable of supporting digital surround by adopting 16 Kbit RAM built-in digital delay
17 steps of –8 to +8 for key control (1 step is equivalent to a half tone)
Karaoke entertainment functions such as Karaoke scoring, vocal cut, equalizer, phase shifter, detection of intervals
between songs, and magic voice functions
• Generation of unnecessary radiation is avoided because clock’s built-in current-control oscillation circuit keeps
clock effects inside the clock
• Built-in automatic reset circuit activated with power turned on
• 5 V single power supply
Recommended Operating Condition
• Supply voltage range: VCC = 4.5 to 5.5 V
• Rated supply voltage: VCC = 5 V
System Configuration
Lch
input
Source
selector
Lch
output
MIX
R
L
Phase
shifter
(ON/OFF)
Key control
R+L
MIC
EQ
Vocal
cut
MIX
Rch
input
Rch
output
Score system
Music
search
ALC
MIC
MIC VOL
MIC
AMP
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 1 of 27
Delay
output
MIX
Echo/
Surround
Delay VOL
M65851FP
MGAIN
LGAIN
MICIN
VCFIL
LIN
RIN
PS1
PS2
EQL1
EQL2
EQL3
EQL4
EQLAMPIN1
EQLAMPIN2
EQLAMPOUT
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
Gain
Gain
BPF1
MBPF2 1
MBPF1
Block Diagram
64 LOUT
Equalizer
63 ROUT
MBPF3 2
MIC
L
R
LBPF1 3
Phase
shifter
Source selector
BPF2
LBPF2 4
62 EQRAMPOUT
+
61 EQRAMPIN2
+
60 EQRAMPIN1
LBPF3 5
Score
Keycon
KCOUT 7
Delay
Equalizer
KSIGIN 6
+
VOL
58 EQR3
57 EQR2
KOLPF2 8
LPF
KHPF1 11
VCC
HPF
KHPF2 10
56 EQR1
16 Kbit
SRAM
16 Kbit
SRAM
55 AVCC2
GND
KOLPF1 9
54 AGND2
53 DOUT
KCISIG 12
KILPF1 13
+
+
LPF
52 DISIG
51 DIN
Logic
F.VOL
KADCINTIN 15
D.VOL
KILPF2 14
50 DILPF1
LPF
ADC
KADCINTOUT 16
+
KADCCONT 17
49 DILPF2
48 DILPF3
47 DADCINTIN
DAC
KDACCONT2 19
ADC
KDACCONT1 18
KDACINTOUT 20
REF
AGND1 23
Auto
reset
MCU
interface
44 DDACCONT
GND
DAC
REF 22
46 DADCINTOUT
45 DADCCONT
KARAOKE
scoreing
KDACINTIN 21
Clock
43 DDACINTIN
42 DDACINTOUT
Test
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
SCORETEST3
MCK
VDD
DGND
DATA
CLOCK
STROBE
REQ
W/RSEL
TEST1
TEST2
DOLPF3
DOLPF2
LPF
SCORETEST2
GND
SCORETEST1
VDD
KCSEL
VCC
AVCC1 24
59 EQR4
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 2 of 27
41 DOLPF1
M65851FP
Function List
M65851FP provides the following functions and can configurate all Karaoke functions with only a single chip.
Usable or Not
Function
Explanation
Key Set
Mode
¦
Not Key
Set Mode
¦
¦
×
t
Switch with
the Echo
¦
Remarks
Digital echo
Built in 16 K SRAM
Delay time (changeable)
100 ms, 130 ms 150 ms, 200 ms
Digital key control
Built in 16 K SRAM
–8 to +8
17 steps
Digital surround
Built in 16 K SRAM
Digital Surround
10 ms to 50 ms 5 kinds
Phase shifter
surround
Equalizer
Changeable the effect thanks to
the external R
¦
¦
Capable of use both key control
and echo
Bass/Treble
–12 dB to +12 dB/2 dB
13 steps changeable
¦
¦
Bass: Resonance type
Treble: Filter type
Source selector
Provided all multiple voice soft,
L, R, (L+R)/2,
Vocal cut
L-R (for digital surround)
Key control bypass
¦
¦
Scoring function
Scoring the MIC vocal input
¦
¦
Help vocal function
At the MIC vocal is nothing,
reference vocal is mixed output.
¦
¦
Voice key control
Input the MIC voice to key
control (change voice tone)
¦
×
At key set mode
capable to use voice key control
or key control
Music search
Detect to line input level
¦
¦
At music input is nothing, key
control level is reset automatically
Others
MCU interface
Current control type
oscillation circuit
Automatic mute
Automatic reset
¦
¦
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 3 of 27
At key set mode
Capable of use echo or surround
Not key set mode
Capable of use both echo and
surround
Compare the reference vocal and
MIC vocal frequency
64 LOUT
MBPF3 2
63 ROUT
LBPF1 3
62 EQRAMPOUT
LBPF2 4
61 EQRAMPIN2
LBPF3 5
60 EQRAMPIN1
59 EQR4
58 EQR3
KOLPF2 8
57 EQR2
KOLPF1 9
56 EQR1
KHPF2 10
55 AVCC2
KHPF1 11
54 AGND2
KCISIG 12
53 DOUT
KILPF1 13
52 DISIG
KILPF2 14
51 DIN
KADCINTIN 15
50 DILPF1
KADCINTOUT 16
49 DILPF2
KADCCONT 17
48 DILPF3
KDACCONT1 18
47 DADCINTIN
KDACCONT2 19
46 DADCINTOUT
KDACINTOUT 20
45 DADCCONT
KDACINTIN 21
44 DDACCONT
REF 22
43 DDACINTIN
AGND1 23
42 DDACINTOUT
AVCC1 24
41 DOLPF1
M65851FP
KSIGIN 6
KCOUT 7
M65851FP
Pin Arrangement
EQLAMPIN2 66
EQLAMPOUT 65
EQL4 68
EQLAMPIN1 67
EQL3 69
EQL2 70
PS2 72
EQL1 71
RIN 74
PS1 73
LIN 75
MICIN 77
VCFIL 76
LGAIN 78
MGAIN 79
MBPF1 80
(Top view)
Outline: PRQP0080GB-A (80P6N-A)
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 4 of 27
MBPF2 1
40 DOLPF2
39 DOLPF3
38 TEST2
37 TEST1
36 W/RSEL
35 REQ
34 STROBE
33 CLOCK
32 DATA
31 DGND
30 VDD
29 MCK
28 SCORETEST3
27 SCORETEST2
26 SCORETEST1
25 KCSEL
M65851FP
Pin Description
Pin
No.
Name
I/O
1
MBPF2
Symbol
Microphone band pass filter 2
I
2
MBPF3
Microphone band pass filter 3
O
3
LBPF1
Line band pass filter 1
—
4
LBPF2
Line band pass filter 2
I
5
LBPF3
Line band pass filter 3
O
6
KSIGIN
Key controlled signal input
I
Function
Composes band pass filter for Karaoke scoring
(For microphone signal)
Composes band pass filter for Karaoke scoring
(For reference signal)
Key controlled signal input
7
KCOUT
Key control output
O
Key control signal output
8
KOLPF2
Low-pass filter 2 output
O
Post-filter after D/A conversion for key control
9
KOLPF1
Low-pass filter 1 input
I
10
KHPF2
High-pass filter 2 output
O
11
KHPF1
High-pass filter 1 input
I
12
KCISIG
Key control signal output
—
13
KILPF1
Low-pass filter 1 input
I
14
KILPF2
Low-pass filter 2 output
O
High-pass passage filter for high-pass through
Output by selecting from L, L+R/2, L-R, and microphone
input
Pre-filter after D/A conversion for key control
Composes an A/D conversion integrator with external C
15
KADCINTIN
A/D integrator input
I
16
KADCINTOUT
A/D integrator output
O
17
KADCCONT
A/D control
—
18
KDACCONT1
D/A control 1
—
19
KDACCONT2
D/A control 2
—
20
KDACINTOUT
D/A integrator output
O
21
KDACINTIN
D/A integrator input
22
REF
Reference
23
AGND1
Analog GND 1
—
24
AVCC1
Analog power supply 1
—
25
KCSEL
Key control selector
I: CMOS 20 kΩ↓
Controls the key selector key control mode or not
26
SCORETEST1
Score test selector 1
I: CMOS 20 kΩ↓
Score test selector; normally set to L level
27
SCORETEST2
Score test selector 2
I: CMOS 20 kΩ↓
28
SCORETEST3
Score test selector 3
O: CMOS
Composes a D/A conversion integrator with external C
I
—
29
MCK
Clock control
—
30
VDD
Digital power supply
—
31
DGND
Digital GND
—
32
DATA
Serial data
I: CMOS Schmitt
50 kΩ↓
O: CMOS
Analog reference voltage ≈ 1/2VCC
5V
Score test selector; normally no connect
External R controls built-in clock generator circuit
Microcomputer
interface
Serial data input/output
33
CLOCK
Clock control
I: CMOS Schmitt
50 kΩ↓
Shift clock output
34
STROBE
Strobe
I: CMOS Schmitt
50 kΩ↓
Strobe output
35
REQ
Request
36
W/RSEL
Write-read selector
I: CMOS Schmitt
50 kΩ↓
37
TEST1
Test signal control input 1
I: CMOS 20 kΩ↓
38
TEST2
Test signal control input 2
I: CMOS 20 kΩ↓
39
DOLPF3
Low-pass filter 3 output
O
40
DOLPF2
Low-pass filter 2 input
I
41
DOLPF1
Low-pass filter1 input
—
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 5 of 27
O: CMOS
Request output
Control the selector write/read
Test input pin; normally set to L
Post-filter after D/A conversion for digital delay
M65851FP
Pin Description (cont.)
Pin
No.
Symbol
42
DDACINTOUT
D/A integrator output
43
DDACINTIN
D/A integrator input
44
DDACCONT
D/A control
—
45
DADCCONT
A/D control
—
46
DADCINTOUT
A/D integrator output
O
47
DADCINTIN
A/D integrator input
I
48
DILPF3
Low-pass filter 3 output
O
49
DILPF2
Low-pass filter 2 input
I
50
DILPF1
Low-pass filter 1 input
—
Name
I/O
O
Function
Composes a D/A conversion integrator with external
I
Composes a A/D conversion integrator with external
Pre-filter before A/D conversion for digital delay
Outputs after selection of echo/surround input signal
51
DIN
Delay select signal input
I
52
DISIG
Delay select signal output
O
53
DOUT
Delay signal output
O
54
AGND2
Analog GND 2
—
55
AVCC2
Analog power supply 2
—
56
EQR1
Rch equalizer adjustment C1
—
57
EQR2
Rch equalizer adjustment C2
—
58
EQR3
Rch equalizer adjustment C3
—
59
EQR4
Rch equalizer adjustment C4
—
60
EQRAMPIN1
Rch equalizer input 1
I
61
EQRAMPIN2
Rch equalizer input 2
I
62
EQRAMPOUT
Rch equalizer output
O
63
ROUT
Rch output
O
64
LOUT
Lch output
O
Lch mixing output
65
EQLAMPOUT
Lch equalizer output
O
66
EQLAMPIN2
Lch equalizer input 2
I
Composes external C for the adjustment of Lch
equalizer characteristics (bass and treble)
67
EQLAMPIN1
Lch equalizer input 1
68
EQL4
Lch equalizer adjustment C4
—
69
EQL3
Lch equalizer adjustment C3
—
70
EQL2
Lch equalizer adjustment C2
—
71
EQL1
Lch equalizer adjustment C1
—
72
PS2
Phase shift input 2
I
73
PS1
Phase shift input 1
I
74
RIN
Rch line input
I
Rch line input
75
LIN
Lch line input
I
Lch line input
76
VCFIL
Vocal cut filter
I
Process frequencies lower than the vocal band
77
MICIN
Microphone input
I
Microphone input
78
LGAIN
Line input gain control
I
Set gain for the no music detection
79
MGAIN
Microphone input gain control
I
Set gain for the microphone detection
80
MBPF1
Microphone band pass filter 1
—
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 6 of 27
Delay signal output
Composes external C for the adjustment of Rch
equalizer characteristics (bass and treble)
Rch mixing output
I
Determines a constant at time of phase shift
Composes band pass filter for Karaoke scoring
(For microphone signal)
M65851FP
Absolute Maximum Ratings
Item
Symbol
Supply voltage
Circuit current
Input voltage
Operating temperature
Storage temperature
VCC
Vi
Pd
Topr
Tstg
Ratings
Units
6.0
–0.3 to VCC + 0.3
815
–20 to +75
–40 to +125
V
V
W
°C
°C
Test Conditions
Recommended Operating Condition
Item
Min
Limits
Typ
Max
Units
4.5
4.5
–0.3
0
0
0.7VDD
VDD–1
5
5
0
—
—
—
—
5.5
5.5
0.3
0.3VDD
0.8
VDD
VDD
V
V
V
V
V
V
V
Symbol
Analog supply voltage
Digital supply voltage
Analog-digital voltage margin
L input level
VCC
VDD
VCC–VDD
VIL
H input level
VIH
Test Conditions
Pin 25, 26, 27, 28, 37, 38
Pin 32, 33, 34, 36
Pin 25, 26, 27, 28, 37, 38
Pin 32, 33, 34, 36
Electrical Characteristics
(VCC = 5 V, f = 1 kHz, Vi = 100 mVrms, F0, Ta = 25°C, Unless otherwise noted)
Limits
Item
Total
Key
control
Digital
delay
Symbol
Min
Typ
Max
Units
Test Conditions
Circuit current
ICC
25
60
90
mA
Clock frequency
fck
6.8
8
9.2
MHz
No signal provided
Pull down resistance
RID
10
20
40
kΩ
Pin 25, 26, 27, 28, 37, 38
25
50
100
kΩ
Pin 32, 33, 34, 36
“H” output current
IOH
—
–20
–10
mA
Pin 32, 35, VOH = 4.0 V
“L” output current
IOL
20
34
—
mA
Pin 32, 35, VOL = 1.0 V
Gain between input and output
GV
–3
0
+3
dB
VOL = 0 dB
Output distortion
THD
—
1.3
3
%
VO = 100 mVrms, 30 kHz LPF
Output noise voltage
No
—
–80
–65
dBV
JIS-A
Maximum output voltage
Vomax
0.7
1.0
—
Vrms
THD = 10%
Maximum volume attenuation
VOLATTmax
—
–60
–40
dB
Gain = –∞
Delay time
Td
4.2
10.2
16.2
ms
Sets 10 ms with microcomputer
8.4
15.4
22.4
Sets 15 ms with microcomputer
13.5
20.5
27.5
Sets 20 ms with microcomputer
19.7
28.7
37.7
Sets 30 ms with microcomputer
40.2
49.2
58.2
Sets 50 ms with microcomputer
86.3
98.3
110.3
Sets 100 ms with microcomputer
116
131
146
Sets 130 ms with microcomputer
128
148
168
Sets 150 ms with microcomputer
177
197
217
–3
0
+3
Gain between input and output
GV
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 7 of 27
Sets 200 ms with microcomputer
dB
VOL = 0 dB
M65851FP
Electrical Characteristics (cont.)
(VCC = 5 V, f = 1 kHz, Vi = 100 mVrms, F0, Ta = 25°C, Unless otherwise noted)
Limits
Item
Digital
delay
Line
EQ
Output distortion
Symbol
THD
Min
Typ
Max
Units
—
0.3
0.6
%
Test Conditions
—
0.5
1.0
—
0.7
1.4
Td = 50 ms, 30 kHz LPF
—
1.0
2.0
Td = 100 ms, 30 kHz LPF
Td = 10, 15, 20 ms, 30 kHz LPF
Td = 30 ms, 30 kHz LPF
—
1.5
3.0
Td = 150 ms, 30 kHz LPF
—
2.0
4.0
Td = 200 ms, 30 kHz LPF
Maximum output voltage
Vomax
0.7
1.0
—
Vrms
30 kHz LPF, THD = 10%
Output noise voltage
No
—
–92
–80
dBV
Td = 10, 15, 20, 30, 50 ms,
Vi = 0 mVrms JIS–A
—
–87
–72
Td = 100 ms, Vi = 0 mVrms JIS–A
—
–85
–70
Td = 130, 150 ms, Vi = 0 mVrms
JIS–A
—
–82
–67
Maximum volume attenuation
VOLATTmax
—
–60
–40
Td = 200 ms, Vi = 0 mVrms JIS–A
—
–60
–40
Gain between input and output
GV
–3
0
+3
dB
30 kHz LPF, upon key control through
Output distortion
THD
–
0.05
0.1
%
30 kHz LPF, upon key control through
Maximum output voltage
Vomax
1.2
1.8
—
Vrms
30 kHz LPF, THD = 10%
upon key control through
Output noise voltage
No
—
–95
–88
dBV
JIS–A, upon key control through
Channel separation
CS
—
–70
–50
dB
Input impedance
Zi
10
20
40
kΩ
Vocal removal ratio
Grej
14
18
—
dB
dB
dB
Delay volume, Gain = –∞
Feedback volume, Gain = –∞
upon key control through,
Lin = 400 Hz, Rout JIS-A
Vocal cut
Maximum bass boost volume
GBBmax
9
12
15
Maximum bass cut volume
GBCmax
–15
–12
–9
f = 100 Hz
Maximum treble boost volume
GTBmax
9
12
15
f = 10 kHz
Maximum treble cut volume
GTCmax
–15
–12
–9
f = 10 kHz
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 8 of 27
f = 100 Hz
M65851FP
Delay Block
Delay block provides a delay signal which using digital echo or digital surround.
Constitution
1000 p
1.0 µ
0.068 µ
4700 p
52
51
0.1 µ
0.1 µ
0.068 µ
4700 p
1000 p
50 49 48
47 46 45
44 43 42
41 40 39
LPF
ADC
DAC
LPF
Input
DLSW3
+
1
DLSW2
2
Feedback
volume
Delay
volume
+
Output
+
Delay
DLSW1
16 Kbit RAM
Function
1. Delay time
Capable to set the follow delay time;
Mode
Delay Time
Echo
Surround
100, 130, 150, 200 ms
10, 15, 20, 30, 50 ms
2. Switch mode
Mode
Echo
1
2
Surround
DLSW1
DLSW2
ON
OFF
OFF
1
2
1
⎯ Echo “1”
Set the echo volume using the delay volume
(Change the delay signal gain)
⎯ Echo “2”
Set the microphone volume using the delay volume
(Change the delay signal + input signal gain)
Delay Signal Mute
Mute OFF
Mute ON
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 9 of 27
DLSW3
ON
OFF
M65851FP
3. Input/output LPF
Input/output LPF is formed following block.
1000 p
4700 p
50
(41)
1
49
(40)
1
24.9 k
24.9 k
2
10.5 k
2
Mode
48
(39)
24.9 k
10.5 k
−
+
Input
2
1
10.5 k
Output
Switch Conditions
Cut Off Frequency
1
2
3.0 kHz
7.0 kHz
Echo
Surround
4. Volume
Volume
Mode
+6 dB to –12 dB/3 dB step and –∞ 8 level
–2 dB to –6 dB/1 dB step and –8 dB, –10dB, –∞ 8 level
Delay volume
Feedback volume
Key Control Block
It can be changed the key of Karaoke accompaniment.
And it can change a microphone voice which like a monkey voice.
It also can use digital echo block at not key set mode.
Key Control Condition, Key Control Set Mode or Not
Pin 25 KCSEL
L
H
Key Control Condition
Key control set mode
Not key control set mode
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 10 of 27
M65851FP
Constitution
3300 p
10 k
Input
10 k
4700 p
15 k
15 k
2.2 µ
0.068 µ
4.7 k
0.047 µ
5.6 k
Output
1000 p 1000 p
1000 p
3.9 k
2.2 µ
0.047 µ
0.068 µ 0.068 µ
25 12
13
27 k
560 p
820 p
14
LPF
15 16 17
18 19 20 21
ADC
DAC
9
Key control
8
11
10
LPF
HPF
VOL
+
7
6
16 Kbit RAM
Function
1. Key change level
Key Change Level
(1step is half tone)
Key Up
+8
+7
+6
+5
+4
Key Down
+3
+2
+1
0
–1
–2
–3
–4
2. Volume
It set the key control signal gain.
+4 dB to 6 dB/2 dB step and –10 dB, –∞ 8 level
3. Key control level automatic reset
When music search detects no signal, key control level is automatic changed normal (0) level.
(Provides ON/OFF switch with MCU interface)
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 11 of 27
–5
–6
–7
–8
M65851FP
Echo Block (Using Key Control Block)
At not key control set mode, digital echo is able to use, when the following block using.
1.0 µ
4700 p
Echo feed
back volume
Input
4700 p
24 k
24 k
2.2 µ
24 k
Output
24 k
24 k
24 k
0.068 µ
0.1 µ
0.1 µ
1000 p
25 12
13
14
2.2 µ
24 k
0.068 µ
1000 p
15 16 17
18 19 20 21
ADC
DAC
LPF
9
Delay
8
24 k
11
10
LPF
BUF
VOL
+
16 Kbit RAM
Delay time
100 ms, 130 ms, 150 ms, 200 ms
Volume level +4 to –6 dB/2 dB step and –10 dB, –∞ 8 level
(same as key control volume)
Phase Shifter Block
Following is the phase shifter block, which makes phase surround effect.
+
–
Lch input
20 k
20 k
20 k
Lch output
20 k
Surround SW
R (internal)
Key control
block output
73
C (external) = 0.022 µF
20 k
20 k
Switch Conditions
R = 13 kΩ
R = 16 kΩ
R = 20 kΩ
Surround SW OFF
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 12 of 27
20 k
–
+
20 k
Rch input
Surround SW ON
72
Surround Effect
Max
Typ
Min
Noting
Rch output
7
6
M65851FP
Equalizer Block
Following is the equalizer block, which can control the both gain bass and treble.
+
–
EQIN
EQSW1
Bass resonance block
EQSW2 EQSW3
EQSW4
–
+
R2
136 k
Treble block
R1
1.8 k
(56)
71
(57)
70
(58)
(59)
69
68
(62)
65
C3
0.033 µ
C2
C1
0.022 µ 0.47 µ
(63)
64
EQOUT
Bass block is resonance type which is used simulated inductor amplifier. Treble block is filter type. These can be set
–12 dB to +12 dB/2 dB step.
Following is a center frequency “fO”, “Q” (bass resonance block).
fO =
1
2π C1 • C2 • R1 • R2
(Hz)
Q = (C1 • R2) / (C2 • R1)
Vocal Cut Block
The sound components of the same phase and same sound volume in the L and R channels are attenuated.
This made also allows components with lower frequency than the vocal band to pass through the filter, to compensate
insufficient low-frequency sound.
Constitution
20 k
20 k
20 k
Lch input
+
–
–
+
R
20 k 76
C
0.15 µ
Vocal cut
output
20 k
20 k
20 k
Rch input
LPF is formed by the internal R (20 kΩ) and the external C, when C = 0.15 μF, cut off frequency is 53 Hz.
fVC =
1
= 53.0 Hz
2π CR
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 13 of 27
M65851FP
Scoring Function
Scoring function judge the MIC vocal input.
Scoring Output Form
MIC input is judged from 0 to 99 level.
Constitution
Scoring function is constituted following two ways.
Judgment Conditions
1. Compare the frequency
2. Vocal level judgment
Function
Ratio
Compare the frequency reference voice and microphone voice
75%
Vocal level judgment
(as vocal is bigger than reference level, judgment is good)
25%
Music Search
Music search is constituted following.
(1) Input signal reference level comparison
(2) Music detection
(3) No music detection
1. Input signal reference level comparison
Input signal reference level comparison is constituted amplifier and level comparison.
When input signal is bigger than reference level, level comparison output the pulse which added internal clock.
Input signal
Clock signal
(125 kHz)
Pulse output
(after level detection)
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 14 of 27
Reference
level
M65851FP
The reference level can be changed, thanks to the following internal R2 and external R1 which determine the
amplifier gain.
+
–
Lch
78
Internal resistance
precision is about
±30%.
Level
comparator
R2 = 50 kΩ
R1 Gain GV = (R1 + R2) / R1
2. Music detection
To search a music interval, it is necessary to judge if it is a music or not. This judgment is made by monitoring the
20 seconds and counting the pulse signal (after level detection). The pulse signal counts is bigger than fixed counts,
it is judged as a music.
Pulse counter is reset whenever monitor 20 seconds or judged no music decision.
about 20 s
Pulse output
(after level detection)
4096 pulse
Music decision
3. No music detection
After music decision “2. Music detection”, no music is judged when no pulse in level detection at 3 seconds. But if
there is not no pulse when monitoring the 3 seconds, no music decision counter is reset.
about 3 s
Pulse output
(after level detection)
No music decision
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 15 of 27
M65851FP
Signal Input Circuit
Signal input circuit is constituted the following band pass filter, which cuts the input signal to vocal band width.
C1 = 0.15 µF
80
(3)
C2 = 1500 pF
1
(4)
2
(5)
R2 = 100 kΩ
Input
R1 = 10 kΩ
−
+
Output
Low level cut off frequency fcl and high level cut off frequency fch is
fcl = 1/2π C1R1 = 106 Hz fch = 1/2π C2R2 = 1.1 kHz
and, the gain of amplifier GV is
GV = R2/R1 = 20 dB.
Same as the band pass filter is constituted microphone signal input.
Automatic Vocal Support
In case using the Karaoke system, when microphone input level is nothing, then audio source vocal appears and help the
microphone songs.
(It can set only following conditions, audio source selector sets Lch monaural or vocal cut)
Microphone Input Level
On
Off
Source Selector Mode
Lch monaural
(L+R)/2
Vocal cut
(L+R)/2
Others
Same as microphone input
Changing time from microphone input level changed to source selector changed is following.
Attack time (Off → On) 0 s
Release time (On → Off) 1 s or 2 s
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 16 of 27
M65851FP
The Timing of Microphone Input Signal Detection
Reference
level
(1.0 V)
Microphone Ref
(2.5 V)
input
Level output
Release time
Attack time 0 s
Microphone
signal
detection
On
On
Off
Following is the microphone input signal judgment block, which includes amplifier so reference level can regulate.
+
–
MIC
79
Internal resistance
precision is about
±30%.
Level
comparator
R2 = 50 kΩ
R1 Gain GV = (R1 + R2) / R1
Oscillation Circuit
This IC incorporates a current control type clock oscillator circuit in it, thus providing circuit configuration just by
connecting a R for current control pin 29 (CLKCNT).
Fully internal clock supply prevents occurrence of undesired radiation without affecting any external circuit.
The oscillator frequency fck is following.
fck = 8 MHz
Reset
This IC is automatically reset when the power is turned on, and is automatically canceled nearly 120 ms later.
Function
Echo
Delay time
Key control
Phase shifter
Equalizer
Source selector
Scoring function
First Set
150 ms
No changing
OFF
OFF
Stereo (Key control by pass)
OFF
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 17 of 27
M65851FP
MCU Interface
Constitutions
MCU interface is constituted serial bass interface, so the selection, data input or output, is changed by pin 36 input level.
Pin 36 W/RSEL
Conditions
MCU → IC (Data input)
IC → MCU (Data output)
L
H
MCU
interface circuit
32
33
34
35
DATA CLOCK STROBE
36
REQ W/RSEL
MCU
Data Input
1. Data input format
DATA
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10 D11 D12 D13 D14 D15
CLOCK
STROBE
2. Mode creations
D0 to D1 select the following each block, and D2 to D13 create the particular setting. D14 and D15 are chip
address, so this IC can use only when D14 = “L” and D15 = “H”.
D0
L
L
H
H
D1
L
H
L
H
D2 to D13
Echo/Surround mode
Key control mode
Equalizer/Phase sifter mode
Line mixing/Others mode
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 18 of 27
D14
D15
Chip address
L
H
M65851FP
(1) Echo/Surround mode
D0
D1
D2
L
L
Echo/
Surround
D3
D4
Echo
delay time
D5
D6
D7
D8
D9
D10
Delay volume
Surround delay
time
D11
D12
D13
Feedback volume
Item
D2
D3
D4
D5
D6
D7
Echo/Surround Switch
L
H
—
—
—
—
—
—
—
—
—
—
—
L
H
L
H
—
—
—
—
—
—
—
L
L
H
H
—
—
—
—
—
—
—
—
—
—
—
H
L
H
L
H
—
—
—
—
—
—
L
H
H
L
L
—
—
—
—
—
—
L
L
L
H
H
Item
D8
D9
D10
D11
D12
D13
Function
Delay volume
H
H
H
H
L
L
L
L
—
—
—
—
—
—
—
—
H
H
L
L
H
H
L
L
—
—
—
—
—
—
—
—
H
L
H
L
H
L
H
L
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
H
H
H
H
L
L
L
L
—
—
—
—
—
—
—
—
H
H
L
L
H
H
L
L
—
—
—
—
—
—
—
—
H
L
H
L
H
L
H
L
+6 dB
+3 dB
0 dB
–3 dB
–6 dB
–9 dB
–12 dB
–∞
–2 dB
–3 dB
–4 dB
–5 dB
–6 dB
–8 dB
–10 dB
–∞
Echo delay time
Surround delay time
Feedback volume
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 19 of 27
D14
D15
L
H
Function
Echo
Surround
On not key control
set mode sets H level
100 ms
130 ms
150 ms
200 ms
10 ms
15 ms
20 ms
30 ms
50 ms
M65851FP
(2) Key control mode
D0
D1
D2
D3
D4
L
H
Auto
reset
VSC/
VMC
D5
D6
D7
D8
D9
Key change level
D10
D11
Key control volume
D12
D13
D14
D15
Delay
volume
select
Delay
signal
mute
L
H
Item
D2
D3
D4
D5
D6
D7
D8
Function
Automatic key control
reset
L
—
—
—
—
—
—
Automatic reset OFF
H
—
—
L
—
—
—
—
—
—
—
—
—
—
Automatic reset ON
VMC mode
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
H
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
—
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
—
L
H
H
H
H
L
L
L
L
L
L
L
H
H
H
H
—
L
H
H
L
L
H
H
L
L
L
H
H
L
L
H
H
—
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
VSC mode
+8
+7
+6
+5
+4
+3
+2
+1
0
–1
–2
–3
–4
–5
–6
–7
—
—
L
H
L
L
L
–8
Item
D9
D10
D11
Function
Key control volume
set
(when not key control
mode, it use a echo
volume)
H
H
H
H
L
L
L
L
H
H
L
L
H
H
L
L
H
L
H
L
H
L
H
L
+4 dB
+2 dB
0 dB
–2 dB
–4 dB
–6 dB
–10 dB
–∞
Item
D12
D13
L
—
Using an echo volume
H
—
—
—
L
H
Using a microphone volume
Mute OFF
Mute ON
Key control mode
selector
Key change level
Delay volume
selector
Delay signal mute
Function
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 20 of 27
M65851FP
(3) Equalizer/Phase shifter mode
D0
D1
H
L
D2
D3
D4
D5
D6
Phase shifter
Automatic
vocal
support
D7
Equalizer treble
D8
D9
D10
D11
Equalizer bass
Item
D2
D3
D4
D5
Function
Automatic vocal
support
(It can use only echo
mode)
L
H
—
—
—
—
L
H
—
—
—
—
—
—
—
—
OFF
ON
Release time 1 s
Release time 2 s
Phase shifter
surround mode
—
—
—
—
—
—
L
H
L
L
L
H
OFF
Surround effect Minimum
Surround effect Typical
—
—
H
H
Surround effect Maximum
Equalizer Treble Mode
D6
D7
D8
D9
Volume (dB)
H
H
H
H
H
H
L
L
L
L
L
L
L
H
H
H
L
L
L
L
L
L
L
H
H
H
H
L
L
H
H
L
L
L
H
H
L
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
+12
+10
+8
+6
+4
+2
0
–2
–4
–6
–8
–10
–12
Equalizer Bass Mode
D10
D11
D12
D13
Volume (dB)
H
H
H
H
H
H
L
L
L
L
L
L
L
H
H
H
L
L
L
L
L
L
L
H
H
H
H
L
L
H
H
L
L
L
H
H
L
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
+12
+10
+8
+6
+4
+2
0
–2
–4
–6
–8
–10
–12
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 21 of 27
D12
D13
D14
D15
L
H
M65851FP
(4) Line mixing/Others mode
D0
D1
D2
D3
D4
H
H
Source selector
Item
D5
D6
Key
control
by pass
Key
control
mixing
D2
Source selector
Key control by pass
Key control mixing
ON/OFF selector
D7
D8
D9
D10
D11
Scoring function
Delay
mixing
D12
D13
Voice
key
control
D14
D15
L
H
D3
D4
D5
D6
L
L
L
H
—
—
—
—
Stereo
Function
L
H
H
—
—
—
H
L
H
—
—
—
—
—
—
—
—
—
—
—
—
L
H
—
—
—
—
—
—
L
Lch monaural
Rch monaural
Vocal cut
Bypass OFF (Though the key control circuit)
Bypass ON (By pass the key control circuit)
Mixing OFF (SSSW10 = “2”)
—
—
—
—
H
Mixing ON (SSSW10 = “1”)
Delay block input L-R
Delay block input (L+R)/2
Relationships Source Selector and Key Control Bypass Mode
D2
D3
L
L
H
H
L
H
L
H
Key Control Mixing
Bypass ON
Stereo
Lch monaural
Rch monaural
Vocal cut
Key Control Mixing
Bypass OFF
(L+R)/2
Lch monaural
Rch monaural
Vocal cut
Item
D7
D8
D9
D10
D11
D12
D13
Delay signal mixing
ON/OFF selector
L
H
—
L
—
—
—
—
—
—
—
—
—
—
Mixing OFF
Mixing ON (L, R same phase)
H
—
—
—
—
—
H
—
—
—
—
—
—
L
H
—
—
—
—
—
—
L
H
—
—
—
—
—
—
L
—
—
—
—
—
—
—
—
—
—
—
—
Mixing ON (L, R reverse phase)
Scoring function OFF
Scoring function ON
Score output after no music decision
Score can output always timing
—
—
—
—
—
—
—
—
H
H
L
H
—
—
—
—
—
—
—
—
—
—
—
—
—
—
L
H
Scoring function
Voice key control
Function
Internal music detection decides the scoring
start/stop timing *
Scoring stop
MCU data decides
the scoring start/stop Scoring start
timing *
OFF
ON
Notes: * Scoring function start/stop mode
1. Decide the internal music detection (D11 = “L”)
2. Decide the MCU data (D11 = “H”)
When D12 is “L” level scoring is stopping, and change “H” level, scoring is start until D12 changes “L” level.
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 22 of 27
M65851FP
Data Output (Score Result Output)
1. Internal music detection decides the scoring output timing
When Karaoke song is over and then music detection judgment the no music detection, scoring is over and output
the “H” pulse to REQ.
After REQ is “H” level and then W/RSEL changes from “L” to “H”, this IC changes a output mode and it can
output the score result.
Music interval decision
Line
input
Music decision
REQ
(output)
W/RSEL
(input)
250 ns or more
(one clock cycle)
CLOCK
(input)
D0
DATA
(output)
D1
D2
D13 D14 D15
2. MCU data decides the scoring result data output timing
W/RSEL changes from “L” to “H”, so this IC changes output mode, and then score result data can output the same
period of the clock.
Line
input
Music decision
W/RSEL
(input)
250 ns or more
(one clock cycle)
CLOCK
(input)
D0
DATA
(output)
D1
D2
D13 D14 D15
3. Data format
D0
D1
D2
D3
D4
D5
D6
D7
D8
Music
interval
decision
D8: Music interval decision
D9 to D15: Score result output
an example 78 points
D9
(MSB)
D10
D11
D13
Score result output
(binary output)
Music decision = “H”, music interval decision = “L”
D9
D10
D11
D12
D13
D14
D15
H
L
L
H
H
H
L
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 23 of 27
D12
D14
D15
(LSB)
M65851FP
Caution
Input/Output Signal Level
When using phase shifter, echo mixing and equalizer, this IC is limited the following functions. So, please determine
the level of the each functions.
Input Base Level
Equalizer Gain Mode
Hand Room
S/N
150 mVrms
100 mVrms
100 mVrms
50 mVrms
0 dB
+6 dB
+12 dB
+12 dB
10.6 dB
8.1 dB
2.1 dB
8.1 dB
78.5 dB
75 dB
75 dB
69 dB
Improvement of Head Room
As stated above, equalizer gain level is bigger, head room becomes also narrow.
So It can be improvement that latest op-amp which using equalizer use external op-amp.
+
EQIN
−
Bass
section
−
+
136 k
Treble
section
1.8 k
71
(56)
70
(57)
69
(58)
68
(59)
67
(60)
0.033 µ
0.022 µ
0.47 µ
1.0 µ
1.0 µ
66
(61)
65
(62)
1.0 µ
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 24 of 27
−
VCC2
2
(63)
Analog high voltage
VCC2
+
150 k
64
M5218AP
Output
M65851FP
Following the relations supply voltage, input signal level, head room and S/N. (external op-amp: M5218AP)
VCC2
Input Level
Equalizer Gain Level
Head Room
S/N
9V
150 mVrms
+6 dB
+12 dB
+6 dB
+12 dB
+6 dB
8.1 dB
2.1 dB
11.6 dB
5.6 dB
78.5 dB
78.5 dB
75 dB
75 dB
10.6 dB
(effect M65851FP)
8.1 dB
78.5 dB
100 mVrms
15 V
150 mVrms
+12 dB
100 mVrms
+6 dB
+12 dB
20 V
14.1 dB
(effect M65851FP)
11.6 dB
78.5 dB
75 dB
75 dB
150 mVrms
+12 dB
10.6 dB
(effect M65851FP)
78.5 dB
100 mVrms
+12 dB
14.1 dB
(effect M65851FP)
75 dB
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 25 of 27
M65851FP
Application Example
80
0.15 µ
BPF1
1
1500 p
Rin
79
78
Gain
Gain
0.022 µ
0.15 µ
77
76
75
0.022 µ 0.47 µ
1.0 µ
+
1.0 µ
+
1.0 µ
10 k
Lin
1µ
+
10 k
+
+
MICin
1µ
0.033 µ
74
73
72
71
70
69
68
67
66
65
Equalizer
2
MIC
L
64
+
2.2 µ
Lout
63
+
2.2 µ
Rout
R
3
62
+
0.15 µ
Phase
shifter
Source selector
BPF2
4
1500 p
61
+
5
60
Score
Keycon
2.2 µ
+
+
VOL
7
4700 p
Delay
Equalizer
6
15 k
57
LPF
0.022 µ
3.9 k
HPF
10
56
16 Kbit
SRAM
16 Kbit
SRAM
27 k
11
1000 p
1000 p
55
54
+ 12
2.2 µ
53
13
Logic
+
2.2µ
52
50
4700 p
LPF
ADC
16
0.1 µ 100 µ
1.0 µ
15
0.047 µ
+
51
D.VOL
820 p
14
+
+
LPF
10 k
F.VOL
10 k
4.7 k
3300 p
VCC
9
GND
560 p
1000 p
58
0.47 µ
8
5.6 k
0.033 µ
59
0.068 µ
1000 p
+
17
49
48
0.068 µ
18
47
0.068 µ
DAC
19
ADC
0.068 µ
20
45
KARAOKE
scoreing
0.047 µ
24
44
DAC
0.1 µ
43
0.068 µ
Clock
42
Test
VCC
100 µ 0.1 µ
23
GND
+
REF
+
47 µ
22
0.1 µ
Auto
reset
MCU
interface
21
15 k
46
VDD
GND
30
31
LPF
41
4700 p
25
26
27
28
29
32
33
34
35
36
37
38
39
40
11 k
0.1 µ
Key control
noncorrespondence
Key control
correspondence
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 26 of 27
1000 p
DATA
CLOCK
STROBE
REQ
W/RSEL
Unit R: Ω
C: F
M65851FP
Package Dimensions
JEITA Package Code
P-QFP80-14x20-0.80
RENESAS Code
PRQP0080GB-A
Previous Code
80P6N-A
MASS[Typ.]
1.6g
HD
*1
D
64
41
65
HE
NOTE)
1. DIMENSIONS "*1" AND "*2"
DO NOT INCLUDE MOLD FLASH.
2. DIMENSION "*3" DOES NOT
INCLUDE TRIM OFFSET.
ZE
*2
E
40
Reference Dimension in Millimeters
Symbol
80
25
1
ZD
24
D
E
A2
HD
HE
A
A1
bp
c
c
Index mark
A
A2
F
*3
y
bp
L
A1
e
Detail F
REJ03F0172-0201 Rev.2.01 Jan 25, 2008
Page 27 of 27
e
y
ZD
ZE
L
Min Nom Max
19.8 20.0 20.2
13.8 14.0 14.2
2.8
22.5 22.8 23.1
16.5 16.8 17.1
3.05
0.1 0.2
0
0.3 0.35 0.45
0.13 0.15 0.2
0°
10°
0.65 0.8 0.95
0.10
0.8
1.0
0.4 0.6 0.8
Sales Strategic Planning Div.
Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
Notes:
1. This document is provided for reference purposes only so that Renesas customers may select the appropriate Renesas products for their use. Renesas neither makes
warranties or representations with respect to the accuracy or completeness of the information contained in this document nor grants any license to any intellectual property
rights or any other rights of Renesas or any third party with respect to the information in this document.
2. Renesas shall have no liability for damages or infringement of any intellectual property or other rights arising out of the use of any information in this document, including,
but not limited to, product data, diagrams, charts, programs, algorithms, and application circuit examples.
3. You should not use the products or the technology described in this document for the purpose of military applications such as the development of weapons of mass
destruction or for the purpose of any other military use. When exporting the products or technology described herein, you should follow the applicable export control laws
and regulations, and procedures required by such laws and regulations.
4. All information included in this document such as product data, diagrams, charts, programs, algorithms, and application circuit examples, is current as of the date this
document is issued. Such information, however, is subject to change without any prior notice. Before purchasing or using any Renesas products listed in this document,
please confirm the latest product information with a Renesas sales office. Also, please pay regular and careful attention to additional and different information to be
disclosed by Renesas such as that disclosed through our website. (http://www.renesas.com )
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result of errors or omissions in the information included in this document.
6. When using or otherwise relying on the information in this document, you should evaluate the information in light of the total system before deciding about the applicability
of such information to the intended application. Renesas makes no representations, warranties or guaranties regarding the suitability of its products for any particular
application and specifically disclaims any liability arising out of the application and use of the information in this document or Renesas products.
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and reliability such as safety systems, or equipment or systems for transportation and traffic, healthcare, combustion control, aerospace and aeronautics, nuclear power, or
undersea communication transmission. If you are considering the use of our products for such purposes, please contact a Renesas sales office beforehand. Renesas shall
have no liability for damages arising out of the uses set forth above.
8. Notwithstanding the preceding paragraph, you should not use Renesas products for the purposes listed below:
(1) artificial life support devices or systems
(2) surgical implantations
(3) healthcare intervention (e.g., excision, administration of medication, etc.)
(4) any other purposes that pose a direct threat to human life
Renesas shall have no liability for damages arising out of the uses set forth in the above and purchasers who elect to use Renesas products in any of the foregoing
applications shall indemnify and hold harmless Renesas Technology Corp., its affiliated companies and their officers, directors, and employees against any and all
damages arising out of such applications.
9. You should use the products described herein within the range specified by Renesas, especially with respect to the maximum rating, operating supply voltage range,
movement power voltage range, heat radiation characteristics, installation and other product characteristics. Renesas shall have no liability for malfunctions or damages
arising out of the use of Renesas products beyond such specified ranges.
10. Although Renesas endeavors to improve the quality and reliability of its products, IC products have specific characteristics such as the occurrence of failure at a certain
rate and malfunctions under certain use conditions. Please be sure to implement safety measures to guard against the possibility of physical injury, and injury or damage
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alone is very difficult, please evaluate the safety of the final products or system manufactured by you.
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any other inquiries.
http://www.renesas.com
RENESAS SALES OFFICES
Refer to "http://www.renesas.com/en/network" for the latest and detailed information.
Renesas Technology America, Inc.
450 Holger Way, San Jose, CA 95134-1368, U.S.A
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© 2008. Renesas Technology Corp., All rights reserved. Printed in Japan.
Colophon .7.2
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