PR
.
e.
tion
hang
c
fica
eci
ect to
p
bj
ls
fina
re su
a
a
not
imits
is
ic l
is
r
; Th
amet
tice
ar
No
me p
so
E
I
IM
L
N
RY
A
MITSUBISHI SOUND PROCESSOR
M62490FP
ELECTRIC VOLUME CONTROL WITH TONE
CONTROLLER FOR 4-SPEAKER APPLICATIONS
Description
Developed for car audio
Uses it for analog small signal handling of stage before power amplifier
Use to Home audio system,television are thought about other than car audio system
Features
Built-in zero cross detector prevents click noise
Differential Amplifier
Loudness
Tone Control Bass/Mid/Treble
Master Volume/Fader Volume
Serial Data Control
Outline 36P2R
Recommended Operating Conditions
Supply voltage range••••Vcc=6 to 9V
V
DD
=4 to 6V
Rated supply voltage••••Vcc=8V
V
DD
=5V
Block Diagram
Lch
Front
DEFN
IN2
DEFP
IN2
LchIN
Differential
Amplifier
Mixing
Amp
Bass/
Mid/
Treble
Volume
&
Loudness
Fader
Zero cross
Detector
Zero cross
Detector
Bass/
Mid/
Treble
µ-com Interface
Rear
RchIN
DEFN
IN1
DEFP
IN1
Mixing
Amp
Front
Differential
Amplifier
Fader
Rear
Rch
MITSUBISHI
ELECTRIC
(1/10)
Pin Configuration & Application Example
RD
CD
TAPE
TV
VCR
0.22µ
1.6K
2.2µ
0.068µ
VDD
0.01µ
0.068µ
1µ
10K 820p
6.8K
RROUT
FROUT
Outside Harmonic
parts for MID
VCC
N.C.
36
30
VDD
(DIGITAL)
+
-
+
-
35
34
33
31
26
25
24
23
22
29
20
32
27
21
28
19
DIFFERENTIAL
AMPLIFIER SW
LOUDNESS SW
VCC
(ANALOG)
B
A
22K
56K
22K
56K
ZERO CROSS
DETECTOR
ZERO CROSS
DETECTOR
I/F
TIMER
DETECTOR
MITSUBISHI
ELECTRIC
22K
56K
REF
A
B
22K
56K
-
+
-
+
Vcc
LOUDNESS SW
DIFFERENTIAL
AMPLIFIER SW
GND
200K
1
4
5
0.068µ
1.6K
0.22µ
2
6
7
8
3
9
10
11
0.01µ
12
13
14
15
16
0.22µ
0.068µ
6.8K
1µ
17
18
47K
10µ
47K
2.2µ
10K 820p
Outside Harmonic
parts for MID
Loudness ON
SW A
SW B
OFF
ON
Loudness OFF
ON
OFF
RROUT
FROUT
(2/10)
VCR
TV
TAPE
CD
RD
MCU
Pin Description
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Symbol
REF
DEFP IN1
DEFN IN1
MIX IN1
MIX OUT1
VOL IN1
LOUD IN1
BASSA1
BASSB1
MID1
TRE1
TONE OUT1
FADER IN1
REAR OUT1
Function
IC signal ground. Apply 1/2 Vcc
Differential amplifier input +
Differential amplifier input -
Mixing amplifier input -
Mixing amplifier input +
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)
FRONT OUT1
Output pin of the fader volume(Front)
GND
TIM1
DATA
Ground
Timer setting terminal
The relationship between outside parts
C and setting time is T=13.8X 10
4
•C(sec).
Input pin of the control data
This pin inputs data in synchronization with CLOCK
MITSUBISHI
ELECTRIC
(3/10)
Pin No.
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Symbol
CLOCK
N.C.
V
DD
FRONT OUT2
REAR OUT2
FADER IN2
TONE OUT2
TRE2
MID2
BASSB2
BASSA2
LOUD IN2
VOL IN2
MIX OUT2
MIX IN2
DEFN IN2
DEFP IN2
Vcc
Function
Clock input pin for serial data transfer
Non Connection
Digital power supply pin, normally +5V
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
Mixing amplifier output
Mixing amplifier input
Differential amplifier input -
Differential amplifier input +
Analog power supply pin
MITSUBISHI
ELECTRIC
(4/10)
Absolute Maximum Ratings
Symbol
Vcc,V
DD
Pd
K
T
opr
T
stg
Parameter
Supply Voltage
Power Dissipation
Thermal Derating Ratio
Operating Temperature
Storage Temperature
Conditions
Ratings
10 , 7
Unit
V
mW
mW/°C
°C
°C
Ta≤25°C
Ta≥25°C
990
9.9
-30 ~ 85
-55 ~ 125
Thermal Derating
1000
960
Power Dissipation Pd [ mW ]
800
600
400
385
200
25
50
75 85
100
125
150
Ambient Temperature Ta [ °C ]
MITSUBISHI
ELECTRIC
(5/10)
京公网安备 11010802033920号
EEWORLD
