Page 1
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
M62421SP/FP
SOUND CONTROLLER
Tone and Volume Controller with 2 Line Control
OUTLINE
M62421SP/FP is the tone and volume controller
with 2 line control.
This IC can apply the broad application because of
low noise and distortion.
FEATURE
•TONE(Bass/Treble) control and 1dB step
volume control are enabled .
•Low noise and low distortion .
VNO= 4.5µVrms, THD=0.1% max
•Controlling by 2 Line serial data .
PACKAGE OUTLINE
20 P 4 B ( SP )
PITCH : 1.78 mm
SIZE : 19.0 mm X 6.3 mm X 3.3 mm
APPLICATION
•Mini-Stereo , etc
RECOMMENDED OPERATING CONDITION
•Supply voltage range 5.5~9.5V (analog) 4.5~5.5V (digital)
•Rated supply voltage 9V (analog) 5V (digital)
SYSTEM BLOCK DIAGRAM
Lch IN
Rch IN
VOLUME
VOLUME
D
A
T
C
L
K
TONE CONTROL
TONE CONTROL
20 P 2 N ( FP )
PITCH : 1.27 mm
SIZE : 5.3 mm X 12.6 mm X 1.8 mm
Lch OUT
BASS TREBLE
Rch OUT
BASS TREBLE
MPU
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ELECTRIC
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Page 2
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
BLOCK DIAGRAM
AVDD
CH2 IN
SIMIN 2
181920
17
420Ω
SIMAMP2
117K
ref
S2 S4
BASS2
SIMOUT2
1.8K
S6 S8
VR3
TRE2
1.8K
VR5
TONE
AMP2
AGND
OUT2
420Ω
200K
200K
M62421SP/FP
SOUND CONTROLLER
CS
DVDD
111213141516
VR2
ref
ref
VR1
ref
1
REF
6.4K
VOLAMP2
VOLAMP1
6.4K
S1 S3
ref
117K
SIMAMP1
420Ω
2 3 4
CH1 IN
SIMIN 1
6.4K
6.4K
TONE
AMP1
S5 S7
VR3 VR5
1.8K
200K
200K
420Ω
1.8K
5 6 7 8 9 10
TRE1
OUT1
BASS1
DGND
SIMOUT 1
CONTROL
LOGIC
DAT
CLK
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ELECTRIC
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Page 3
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
PIN DESCRIPTION
PIN No.
1
2
3
4
5
6
7
PIN NAME
REF
CH1 IN
SIMIN 1
SIMOUT 1
BASS1
TRE1
OUT1
I/O
O
O
I
I
I
I
I
Reference voltage terminal for analog
Input terminal (ch1)
Pin for capacitor of simulated inductor 1
Pin for capacitor of simulated inductor 1
Pin for capacitor of ch1-side bass setting
Pin for capacitor of ch1-side treble setting
Output terminal (ch1)
M62421SP/FP
SOUND CONTROLLER
DESCRIPTION
8
9
10
11
12
13
14
15
16
17
18
19
20
DGND
DAT
CLK
CS
DVDD
AGND
OUT2
TRE2
BASS2
SIMOUT2
SIMIN 2
CH2 IN
AVDD
Digital GND
I
I
I
O
I
I
O
I
I
I/ O terminal of DATA 2 line bus format
Input terminal of CLOCK 2 line bus format
Chip select terminal
VDD for digital circuit
GND for analog circuit
Output terminal (ch2)
Pin for capacitor of ch2-side treble setting
Pin for capacitor of ch2-side bass setting
Pin for capacitor of simulated inductor 2
Pin for capacitor of simulated inductor 2
Input terminal (ch2)
VCC for analog circuit
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ELECTRIC
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Page 4
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
ABSOLUTE MAXIMUM RATINGS
SYMBOL
AVdd
DVdd
Pd
K
Topr
Tstg
PARAMETER
Analog supply voltage
Digital supply voltage
Power dissipation
Thermal Derating ratio
Operating temperature
Storage temperature
M62421SP/FP
SOUND CONTROLLER
CONDITION LIMITS UNIT
V
V
mW
mW/°C
°C
°C
Ta 25°C
Ta 25°C
10.0
7.0
750(SP)
550(FP)
7.5(SP)
5.5(FP)
-20~+75
-40~+125
Thermal Derating
1000
SP
800
600
FP
400
200
0
Power dissipation pd [mW]
0
25 50 75 100
Ambient temperature Ta [°C]
750mW
550mW
375mW
275mW
125
150
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ELECTRIC
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Page 5
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
RECOMMENDED OPERATING CONDITION
ITEM
Analog
supply voltage
Digital
supply voltage
H level input voltage
(logic circuit)
L level input voltage
(logic circuit)
SYMBOL CONDITION
AVDD
DVDD
VIH
VIL
M62421SP/FP
SOUND CONTROLLER
( Ta=25°C unless otherwise noted )
MIN
5.5
4.5
0.7 DVDD
0 0.3 DVDD
TYP MAX
9.0
9.5
5.0 5.5
VDD
UNIT
V
V
V
V
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ELECTRIC
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Page 6
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
ELECTRIC CHARACTERISTICS
( Ta=25°C, AVDD=9V,DVDD=5V and bass and treble=0dB
unless otherwise noted )
( 1 ) SUPPLY VOLTAGE
ITEM
Analog supply current
Digital supply current
( 2 ) I / O CHARACTERISTICS
ITEM
Maximum input voltage
Output voltage Vodc
Gain
Output noise voltage
Total harmonic distortion
Channel separation
SYMBOL CONDITION
Icc
Idd
SYMBOL CONDITION
VIM
Gv
Vono
THD
CT
M62421SP/FP
SOUND CONTROLLER
•AVdd=9.0V
•measure terminal=20 pin
•no signal input
•DVdd= 5V
•measure terminal=12 pin
•no signal input
2,19pin input7,14pin output
RL=10KΩ, THD=1%,f=1kHz
ATT=-6dB
7pin,14pin,
no signal
Vin=0dBm,FLAT,f=1kHz
2- 7PIN 19-14PIN gain
IHF-A filter
no signal
Rg=10KΩ 7,14pin
7pin,14pin f=1kHz
Vo=0.5Vrms , RL=10KΩ
LPF=30kHz
RL=10KΩ
S:Vin=1Vrms,f=1kHz
M:Rg=10kΩ,IHF-A filter
LIMIT
typ
Min
LIMIT
Min typ Max
2.0
-100
10
3.2
4.5
4.5
Max
20
0
2
4.654.35
0
2-2
10
0.10.007
-70
UNIT
mA
µA
UNIT
Vrms
V
dB
µ Vrms
%
dB
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ELECTRIC
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Page 7
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
( 3 ) TONE CHARACTERISTICS
ITEM
Tone control gain
(bass)
Tone control gain
(treble)
( 4 ) VOLUME CHARACTERISTICS
ITEM
Maximum attenuation
Minimum attenuation
SYMBOL CONDITION UNIT
Gbassb
Gbassc
Gtrebb
Gtrebc
SYMBOL CONDITION
ATTmax
ATTmin
f=1KHz, Vin=0dBm
2pin~7pin
19pin~14pin gain
IHF-A-filter
f=100Hz
f=10KHz
M62421SP/FP
SOUND CONTROLLER
LIMIT
typ
Min
9 15 dB
-15 -9 dB
9 15
-15 -9 dB
LIMIT
Min
-108 -80
-1.5 1.5
12
-12
12
-12
typ
-100
0
Max
Max
dB
UNIT
dB
dB
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ELECTRIC
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Page 8
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
FUNCTION EXPLANATION
( 1 ) EQUIVALENT CIRCUIT OF TONE CONTROL
The resonance circuit is able to construct by using built-in
amplifier for simulated inductor. (Shows the constant as
follow)
Inside IC
R3
C1
M62421SP/FP
SOUND CONTROLLER
Center frequency
f0 = 1 / 2π C1 • C2 • R1 • R2 [Hz]
Q = ( C2 • R2 ) / ( C1 • R1 )
ref
C2
R1
(=1.8KΩ)
SIMAMP
R2
(=117KΩ)
ref
FIG1. The circuit used simulated inductor.
L
C1
R3
( EX ) BASS band ( f=100Hz )
R1=1.8KΩ , R2=117KΩ
C1=0.47µ , C2=0.022µ
FIG1 is equal to FIG2.
The following relation is concluded.
L=C2 • ER1 • ER2
.
.
FIG2. The equivalent circuit used L.
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ELECTRIC
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Page 9
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
INPUT DATA FORMAT
Input direction
D0 D1 D2 D3 D4 D5 D6
0/1 0/1 VOLUME
TREBLE
BASS
D7 D8
1
M62421SP/FP
SOUND CONTROLLER
D9 D10
0/1
1
0
1
D11 D12
0
0/1
0
0: BOTH
1: ONLY 1CHANNEL
0: 1ch
1: 2ch
These functions
are effective only
VOLUME data.
0:MUTE OFF
1:MUTE ON
DATA SELECT
0: VOLUME/MUTE
1: BASS/TREBLE
If CS PIN(15 PIN) is
"L" 0,
and if "H" 1.
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ELECTRIC
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Page 10
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
( 3 ) -1: volume control
VOLUME CODE
ATT
0dB
-4dB
-8dB
-12dB
-16dB
-20dB
-24dB
-28dB
-32dB
-36dB
-40dB
-44dB
-48dB
-52dB
-56dB
-60dB
-64dB
-68dB
-72dB
-76dB
-80dB
-∞dB
H
LL L H
H
L
H
L
H
L
H
L
H
L
H
L
L
H
L
H
H
L
L
H
H
L
L
H
H
L
L
LL L
HH
H
L
L
D4D3D2
H
H
L
L
L
L
H
H
H
H
L
L
L
L
HHH
HHL
HH
H
L
L
L
L
D5
LL
L
L
L
L
H
H
H
H
H
H
H
H
L
L
LL L
L
L
L
L
D6
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
M62421SP/FP
SOUND CONTROLLER
ATT
0dB
-1dB
-2dB
-3dB
D7 D8
H
L
H
L
H
H
L
L
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ELECTRIC
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MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
( 4 ) -2 : tone level control
TONE CODE
BASS
D7 D6 D5 D4
12dB
10dB
8dB
6dB
4dB
2dB
0dB
-2dB
-4dB
-6dB
-8dB
-10dB
-12dB
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
H
H
H
M62421SP/FP
SOUND CONTROLLER
TREBLE
D3 D2 D1 D0
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
L
L
L
L
L
L
L
H
H
H
H
H
H
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
(3) -3 : MUTE CONTROL
On condition D9=1,MUTE can be set up.
In MUTE,VOLUME LEVEL is set up VOL=-∞
automatically.
NOT USED HHHH
LHHH
HLLL
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ELECTRIC
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MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
DATA and CLOCK
CLK
D0 D1 D2
DAT
DATA is read by CLK rise edge.
D3
M62421SP/FP
SOUND CONTROLLER
D10
Latch signal is read by CLK fall edge.
D11
Latch signal "H"
D12
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ELECTRIC
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Page 13
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
BUS LINE TIMING SPECIFICATION
75%
25%
tr tf
tWHC
M62421SP/FP
SOUND CONTROLLER
tcr
tWLC
Parameter Symbol MIN MAX Units
CLK clock frequency
The HIGH period of the clock
The LOW period of the clock
Rise time of CLK line
Fall time of CLK line
Set -up time DATA
Hold time DATA
tSD
tHD
tcr
tWHC
tWLC
tr
tf
tSD
tHD
4
1.6
1.6 -
-
-
0.8
0.8
-
-
0.4
0.4
-
-
µs
µs
µs
µs
µs
µs
µs
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ELECTRIC
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Page 14
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
LEVEL DIAGRAM
INPUT TERMINAL
CH1 IN
VOLAMP1
ref
G1
0dB ~ -∞dB
G1
6.4KΩ
M62421SP/FP
SOUND CONTROLLER
6.4KΩ
TONEAMP1
-12dB ~ +12dB
G2
OUTPUT
TERMINAL
CH1 OUT
INPUT TERMINAL
CH2 IN
117K
ref
1.8K
Same to CH 1
OUTPUT
TERMINAL
CH2 OUT
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ELECTRIC
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Page 15
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
LOGIC CIRCUIT
Level Shifter
TONE
AMP1
M62421SP/FP
SOUND CONTROLLER
Analog Block
ref
Level Shifter
Decoder,latch
for volume control
VOLAMP1
CS
Decoder,latch
for tone control
<D5>
<D6>
<D7>
<D4>
<D3>
<D1>
<D2>
<D0>
<D7>
<D8>
Timing
Generator
<D6>
<D5>
<D4>
<D3>
<D2>
DAT
CLK
<D12>
<D9>
<D10>
<D11>
MITSUBISHI
ELECTRIC
<D8>
<D7>
<D6>
Shift Register
<D5>
<D4>
<D3>
<D1>
<D2>
<D0>
( / )
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Page 16
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
APPLICATION EXAMPLE
2.2µF
0.022µF
IN2
VCC
181920
420Ω
117K
ref
0.033µF
0.47µF
17
1.8K
SIMAMP2
S2 S4S6 S8
VR3
ref
TONE
AMP2
1.8K
OUT2
VR5
M62421SP/FP
SOUND CONTROLLER
DVDD
2.2µF
AGND
DVDD or GND
111213141516
420Ω
200K
200K
Reference circuit
example
470µF
4.7K
4.7K
ref
1
Reference
voltage
VR2
ref
VOLAMP1
ref
VR1
420Ω
2 3 4
0.022µF
6.4K
VOLAMP2
6.4K
ref
117K
S1 S3
SIMAMP1
0.033µF
6.4K
6.4K
TONE
AMP1
S5 S7
VR3
1.8K
VR5
1.8K
200K
200K
420Ω
5 6 7 8 9 10
0.47µF
DGND
2.2µF
CONTROL
LOGIC
IN1
2.2µF
ref
OUT1
MITSUBISHI
ELECTRIC
MPU
( / )
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