M62440FP
Electric Volume Control with Tone Controller for 4-Speaker
Applications
REJ03F0211-0201
Rev.2.01
Mar 31, 2008
Description
The M62440FP is an IC developed for car audio, it has a built-in 4ch input selector, master volume, loudness, tone
control and fader volume blocks. All of these blocks are controlled via serial data. Thank to the used zero crossing
detector, very low click noise are obtained.
Features
•
•
•
•
•
•
Built-in zero cross detector prevents click noise
4-input selector
Loudness
Tone control bass/Mid/Treble
Master volume/Fader Volume
Serial data control
Recommended Operating Conditions
Supply voltage range: VCC = 6 to 9 V
VDD = 4 to 6 V
Rated supply voltage: VCC = 8 V
VDD = 5 V
Block Diagram
Lch
Front
IND2
Fader
Bass/
Mid/
Treble
INC2
INB2
INA2
IND1
Volume
&
Loudness
Zero cross
detector
Rear
Interfase
Zero cross
detector
Front
INC1
INB1
INA1
Bass/
Mid/
Treble
Fader
Rear
Rch
REJ03F0211-0201 Rev.2.01 Mar 31, 2008
Page 1 of 10
10 µ
INB1
22 k
INC1
22 k
4
22 k
–
+
IND1
5
38
22 k
REF
39
22 k
22 k
6
37
–
+
2.2 µ
2.2 µ
7
36
A
A
34
–
+
8
–
+
0.068 µ
6.8 k
9
100 k
0.0033 µ
11
32
0.047 µ
0.068 µ
10
ZERO CROSS
DETECTOR
Loudness SW
B
33
0.068 µ
0.047 µ
ZERO CROSS
DETECTOR
Loudness SW
B
35
0.068 µ
6.8 k
1.5 k
0.01 µ
12
–
+
0.01 µ
31
1.5 k
13
30
1µ
1µ
17
GND
VDD
26
VDD
FROUT
16
27
15
OFF
ON
24
N.C.
18
N.C.
Vcc
19
0.22 µ
200 k
TIMER
DETECTOR
25
N.C.
Loudness OFF
FROUT
28
RROUT
14
29
RROUT
∞
+
INA1
22 k
3
40
22 k
IND4
ON
∞
+
47 k
–
+
47 k
2
41
22 k
INC3
SW B
OFF
Loudness ON
∞
+
1
VCC
42
22 k
INB2
–
+
INA2
–
+
–
+
VCC
0.0033 µ
–
+
SW A
∞
+
–
+
–
+
REJ03F0211-0201 Rev.2.01 Mar 31, 2008
Page 2 of 10
–
+
100 k
20
I/F
23
MCU
N.C.
21
22
N.C.
M62440FP
Pin Configuration and Application Example
M62440FP
Pin Description
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Symbol
REF
INA1
INB1
INC1
IND1
SELECT OUT1
VOL IN1
LOUD IN1
BASSA1
BASSB1
MID1
TRE1
TONE OUT1
FADER IN1
REAR OUT1
FRONT OUT1
GND
N.C.
TIM1
20
DATA
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
N.C.
N.C.
CLOCK
N.C.
N.C.
VDD
FRONT OUT2
REAR OUT2
FADER IN2
TONE OUT2
TRE2
MID2
BASSB2
BASSA2
LOUD IN2
VOL IN2
SELECT OUT2
IND2
39
40
41
42
INC2
INB2
INA2
VCC
REJ03F0211-0201 Rev.2.01 Mar 31, 2008
Page 3 of 10
Function
IC signal ground. Apply 1/2 VCC
Input pin for channel 1 of the input selector switch block
Output pin of the input selector switch block
Input pin of the volume block
Pin for setting the frequency characteristics of the loudness block
Pin for setting the frequency characteristics of the tone (Bass) block
R-ladder terminal of tone (Mid)
R-ladder terminal of tone (Treble)
Output pin of the tone block
Input pin of the fader volume
Output pin of the fader volume (Rear)
Output pin of the fader volume (Front)
Ground
Non Connection
Timer setting terminal
The relationship between outside parts
4
C and setting time is T = 13.8 × 10 • C (s).
Input pin of the control data
This pin inputs data in synchronization with CLOCK
Non Connection
Non Connection
Clock input pin for serial data transfer
Non Connection
Non Connection
Digital power supply pin, normally +5 V
Output pin of the fader volume (Front)
Output pin of the fader volume (Rear)
Input pin of the fader volume
Output pin of the tone block
R-ladder terminal of tone (Treble)
R-ladder terminal of tone (Mid)
Pin for setting the frequency characteristics of the tone (Bass) block
Pin for setting the frequency characteristics of the loudness block
Input pin of the volume block
Output pin of the input selector switch block
Input pin for channel 2 of the input selector switch block
Analog power supply pin
M62440FP
Absolute Maximum Ratings
Item
Supply voltage
Power dissipation
Thermal derating ratio
Operating temperature
Storage temperature
Symbol
VCC, VDD
Pd
Kθ
Topr
Tstg
Ratings
10, 7
990
9.9
–30 to 85
–55 to 125
Unit
V
mW
mW/°C
°C
°C
Power Dissipation Pd (mW)
Thermal Derating
1000
990
800
600
400
200
25
50
75 85 100
125
Ambient Temperature Ta (°C)
REJ03F0211-0201 Rev.2.01 Mar 31, 2008
Page 4 of 10
150
Conditions
—
Ta ≤ 25°C
Ta ≥ 25°C
—
—
M62440FP
Electrical Characteristics
Ta = 25°C, VCC = 8 V, VDD = 5 V, VOL/FADER = 0 dB, TONE/FLAT, Loudness OFF unless otherwise noted
Min
Limits
Typ
Max
Unit
Circuit current
Pass gain
ICC
Gv
—
–3.5
20
0
35
3.5
mA
dB
Maximum attenuation
ATT (VOL)
–32.5
–30
–27.5
dB
Attenuation error
Maximum input voltage
∆ATT (VOL)
VIM
–2.5
1.8
0
2.2
2.5
—
dB
Vrms
Bass boost
Bass cut
MID boost
MID cut
Treble boost
Treble cut
G (Bass) B
G (Bass) C
G (MID) B
G (MID) C
G (Tre) B
G (Tre) C
13
–15
9
–15
9
–15
16
–12
12
–12
12
–12
19
–9
15
–9
15
–9
dB
dB
dB
dB
dB
dB
Maximum attenuation
ATT (FED)
—
–90
–80
dB
Maximum output
voltage
VOM
1.8
2.2
—
Vrms
Output noise voltage
Vno1
Vno2
—
—
10
3
18
8
µVrms
Total harmonic
distortion
THD
—
0.01
0.05
%
Item
Symbol
Test Conditions
No input signal
Outside resister 22 kΩ of pin 2 to 5,
pin 38 ~ 41
Vi = 1 Vrms, f = 1 kHz
ATT (VOL) = –30 dB
ATT (VOL) = 0 dB
f = 1 kHz, BW: 400 ~ 30 kHz
THD = 1%
f = 100 Hz
f = 100 Hz
f = 1 kHz
f = 1 kHz
f = 10 kHz
f = 10 kHz
Vi = 1 Vrms, f = 1 kHz
ATT (FED) = –∞ dB
f = 1 kHz, BW: 400 to 30 kHz
THD = 1%
Rg = 0, DIN-AUDIO
ATT (VOL) = –30 dB
ATT (FED) = –∞ dB
Rg = 0, DIN-AUDIO
Channel separation
CS
—
–90
–80
dB
f = 1 kHz, Vo = 0.5 Vrms
BW: 400 Hz to 30 kHz
f = 1 kHz
Cross talk of input
selector
CT
—
–75
–65
dB
f = 1 kHz
Voltage gain of
loudness
G (LOUD) L
7.0
11.0
15.0
dB
G (LOUD) H
3.5
6.5
9.5
Loudness ON
f = 100 Hz, ATT (VOL) = –30 dB
Loudness ON
f = 10 kHz, ATT (VOL) = –30 dB
REJ03F0211-0201 Rev.2.01 Mar 31, 2008
Page 5 of 10
M62440FP
Relationship between Data and Clock
CLOCK
D0
D1
D2
D12
D3
D14
D13
DATA
LATCH SIGNAL "H"
DATA reading mode;
The rising edge of the CLOCK signal
LATCH reading mode;
The falling edge of the CLOCK signal
Digital Circuit DC Characteristics
Item
Symbol
"L" level input voltage
"H" level input voltage
"L" level input current
"H" level input current
VIL
VIH
IIL
IIH
Min
Limits
Typ
Max
Unit
0
0.8 VDD
–10
—
~
~
—
—
0.2 VDD
VDD
10
10
V
DATA, CLOCK pins
µA
VI = 0
VI = VDD
Test Conditions
DATA, CLOCK pins
Digital Circuit AC Characteristics
Item
CLOCK cycle time
CLOCK pulse width ("H" level)
CLOCK pulse width ("L" level)
CLOCK rise time
CLOCK fall time
DATA setup time
DATA hold time
Symbol
tcr
tWHC
tWLC
tr
tf
tSD
tHD
REJ03F0211-0201 Rev.2.01 Mar 31, 2008
Page 6 of 10
Min
4
1.6
1.6
—
—
0.8
0.8
Limits
Typ
—
—
—
—
—
—
—
Max
Unit
—
—
—
0.4
0.4
—
—
µs
M62440FP
Clock Data Timing
tcr
75%
CLOCK
25%
tf
tr
tWHC
tWLC
DATA
tSD
REJ03F0211-0201 Rev.2.01 Mar 31, 2008
Page 7 of 10
tHD
M62440FP
Data Input Format
Data Select
0: 1CH
1: 2CH
0: Loudness OFF
1: Loudness ON
D0
0
0
D1 D2
Input
Selector
Fader
ATTF2
0: Both Channel
1: Side Channel
D3
D4
0/1
0
0/1
00: Input Selector/Loudness/Volume
10: Fader
01: Bass/Treble/Mid
D5
D6
0/1
0/1
D7
D8
D9 D10 D11 D12 D13 D14
Volume
Fader
ATTF1
0/1
Bass
0
Mid
Treble
0/1
0
0
1
0
0
1
0: Front/Rear Both
1: Front/Rear Independence
0: Front Point Zero Detect
1: Rear Point Zero Detect
0: Front
1: Rear
Note:
Input selector, Loudness and Tone (Bass/Mid/Treble) are always set for same conditions of both
channel (1ch & 2ch).
Volume Code
ATT V1
0 dB
–4 dB
–8 dB
–12 dB
–16 dB
–20 dB
–24 dB
–28 dB
D7
1
0
1
0
1
0
0
1
D8
0
0
1
1
0
0
1
1
D9
1
1
0
0
0
0
1
1
ATT V2
0 dB
–1 dB
–2 dB
–3 dB
D10
1
0
1
0
D11
1
1
0
0
Fader Code
ATT F1
0 dB
–8 dB
–16 dB
–24 dB
–32 dB
–40 dB
–48 dB
–56 dB
–∞ dB
D7
1
1
0
1
0
1
0
1
0
D8
0
1
1
0
0
1
1
0
0
REJ03F0211-0201 Rev.2.01 Mar 31, 2008
Page 8 of 10
D9
0
1
1
1
1
0
0
0
0
D10
1
0
0
0
0
0
0
0
0
ATT F2
0 dB
–2 dB
–4 dB
–6 dB
D1
1
0
1
0
D2
1
1
0
0
M62440FP
Tone Code
Bass
16 dB
14 dB
12 dB
10 dB
8 dB
6 dB
4 dB
2 dB
0 dB
–2 dB
–4 dB
–6 dB
–8 dB
–10 dB
–12 dB
D0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
D1
0
1
1
0
0
1
1
0
0
0
1
1
0
0
1
D2
0
1
1
1
1
0
0
0
0
0
0
0
1
1
1
D3
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
Treble
12 dB
10 dB
8 dB
6 dB
4 dB
2 dB
0 dB
–2 dB
–4 dB
–6 dB
–8 dB
–10 dB
–12 dB
D4
0
1
0
1
0
1
0
1
0
1
0
1
0
D5
1
0
0
1
1
0
0
0
1
1
0
0
1
D6
1
1
1
0
0
0
0
0
0
0
1
1
1
D7
0
0
0
0
0
0
0
1
1
1
1
1
1
Mid
12 dB
10 dB
8 dB
6 dB
4 dB
2 dB
0 dB
–2 dB
–4 dB
–6 dB
–8 dB
–10 dB
–12 dB
D8
0
1
0
1
0
1
0
1
0
1
0
1
0
D9
1
0
0
1
1
0
0
0
1
1
0
0
1
D10
1
1
1
0
0
0
0
0
0
0
1
1
1
D11
0
0
0
0
0
0
0
1
1
1
1
1
1
Input Selector
Input Selector
D (5, 38 pin)
C (4, 39 pin)
B (3, 40 pin)
A (2, 41 pin)
D1
1
1
0
0
REJ03F0211-0201 Rev.2.01 Mar 31, 2008
Page 9 of 10
D2
1
0
1
0
M62440FP
Package Dimensions
42P2R-A
MMP
EIAJ Package Code
SSOP42-P-450-0.80
Plastic 42pin 450mil SSOP
JEDEC Code
—
Weight(g)
0.63
e
b2
22
E
HE
e1
I2
42
Lead Material
Alloy 42/Cu Alloy
Recommended Mount Pad
F
Symbol
1
21
A
D
G
A2
e
b
L
L1
y
A1
A
A1
A2
b
c
D
E
e
HE
L
L1
z
Z1
y
c
z
Z1
Detail G
REJ03F0211-0201 Rev.2.01 Mar 31, 2008
Page 10 of 10
Detail F
b2
e1
I2
Dimension in Millimeters
Min
Nom
Max
2.4
—
—
—
—
0.05
—
2.0
—
0.5
0.4
0.35
0.2
0.15
0.13
17.7
17.5
17.3
8.6
8.4
8.2
—
0.8
—
12.23
11.93
11.63
0.7
0.5
0.3
—
1.765
—
0.75
—
—
—
0.9
—
0.15
—
—
0°
—
10°
—
—
0.5
—
11.43
—
—
1.27
—
Sales Strategic Planning Div.
Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
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