MITSUMI
AV Switch for I
2
C BUS Control, 4-input, 3-output and Canal Plus Compatible MM1422, 1423, 1442, 1443
AV Switch for I
2
C BUS Control, 4-input, 3-output
and Canal Plus Compatible
Monolithic IC MM1422, 1423, 1442, 1443
Outline
These ICs are four-input, three-output AV switches under I
2
C BUS control with Canal Plus support, intended
for use in VCRs and DVD for the European market. There are four models, described below. Audio
subsystems are either stereo or monaural; video subsystems either do or do not have a clamping circuit.
Features
1. I
2
C BUS serial control.
2. Internal two-output 75
video driver, internal two-output 600
audio driver.
3. Audio mute function through an external pin.
4. Operating power supply voltage
11 to 13 V
5. Models both with and without video subsystem clamp.
6. Models with monaural and stereo audio subsystems.
Package
SSOP-34A (MM1443XJ)
SDIP-32A (MM1443XD)
Applications
(1)VCRs with Canal Plus Support for the European Market.
(2)DVD
Series Table
Video input
Stereo
Monaural
Package
clamp
SDIP-32A SSOP-34A
MM1422
MM1423
MM1442
MM1443
MITSUMI
AV Switch for I
2
C BUS Control, 4-input, 3-output and Canal Plus Compatible MM1422, 1423, 1442, 1443
SDIP-32A
1
3
6
10
2
4 5
8
7
12
9
11
16
15
14
13
32
24
21
27
25
23 22
20
26
17
30
31
29 28
18
19
1
E1-V
9
Mute
17
GND1
25
L
OUT
1
2
V
CC
2
10
E1-L
18
TUN-R(N.C.)
26
TUN-V
3
E2-V
11
FS
19
R
OUT
3(N.C.)
27
V
OUT
3
4
V
CC
1
12
EXT-R(N.C.)
20
R
OUT
2(N.C.)
28
V
OUT
2
5
EXT-V
13
Port1
21
R
OUT
1(N.C.)
29
V
OUT
1
6
EXT-L
14
E2-R(N.C.)
22
TUN-L
30
SDA
7
BIAS
15
Port2
23
L
OUT
3
31
SCL
8
E2-L
16
E1-R(N.C.)
24
L
OUT
2
32
GND2
Pin Assignment
SSOP-34A
1
3
6
10
2
4 5
8
7
12
9
11
16
15
14
13
32
33
34
24
21
27
25
23 22
20
26
17
30
31
29 28
18
19
1
E1-V
10
E1-L
19
GND1
28
TUN-V
2
V
CC
2
11
FS
20
TUN-R(N.C.)
29
V
OUT
3
3
E2-V
12
EXT-R(N.C.)
21
R
OUT
3(N.C.)
30
V
OUT
2
4
V
CC
1
13
Port1
22
R
OUT
2(N.C.)
31
V
OUT
1
5
EXT-V
14
E2-R(N.C.)
23
R
OUT
1(N.C.)
32
SDA
6
EXT-L
15
Port2
24
TUN-L
33
SCL
7
BIAS
16
E1-R(N.C.)
25
L
OUT
3
34
GND2
8
E2-L
17
NC
26
L
OUT
2
9
Mute
18
NC
27
L
OUT
1
MM1443XJ
MM1443XD
MITSUMI
AV Switch for I
2
C BUS Control, 4-input, 3-output and Canal Plus Compatible MM1422, 1423, 1442, 1443
Block Diagram
Stereo type (MM1423, MM1443)
Monaural type (MM1422, MM1442)
MITSUMI
AV Switch for I
2
C BUS Control, 4-input, 3-output and Canal Plus Compatible MM1422, 1423, 1442, 1443
Pin No. Pin name
Functions
Equivalent circuit diagram
1
E1-V
Video input pin
3
E2-V
5
EXT-V
28
TUN-V
2
V
CC
2
V
CC
2 is power supply voltage pin for
4
V
CC
1
75
driver
13
Port1
Port output pin
15
Port2
6
EXT-L
Audio input pin
8
E2-L
10
E1-L
12
EXT-R
14
E2-R
16
E1-R
20
TUN-R
24
TUN-L
7
BIAS
Bias pin
Pin Description
AV Switch for I
2
C BUS Control, 4-input, 3-output
and Canal Plus Compatible
Monolithic IC MM1443
Introduction of Main Model
MITSUMI
AV Switch for I
2
C BUS Control, 4-input, 3-output and Canal Plus Compatible MM1422, 1423, 1442, 1443
Pin No. Pin name
Functions
Equivalent circuit diagram
9
Mute
Mute pin
19
GND1
GND2 is a GND pin for 75
driver
34
GND2
11
FS
FS output pin
21
R
OUT
3
Audio driver output pin
22
R
OUT
2
25
L
OUT
3
26
L
OUT
2
23
R
OUT
1
Audio buffer output pin
27
L
OUT
1
MITSUMI
AV Switch for I
2
C BUS Control, 4-input, 3-output and Canal Plus Compatible MM1422, 1423, 1442, 1443
Pin No. Pin name
Functions
Equivalent circuit diagram
29
V
OUT
3
Video driver output pin
30
V
OUT
2
31
V
OUT
1
Video buffer output pin
32
SDA
SDA pin
33
SCL
SCL pin
17
NC
18
MITSUMI
AV Switch for I
2
C BUS Control, 4-input, 3-output and Canal Plus Compatible MM1422, 1423, 1442, 1443
Absolute Maximum Ratings
(Ta=25C)
Recommend Operating Conditions
Electrical Characteristics
(Except where noted otherwise, Ta=25C, V
CC
=12V)
Item
Symbol
Ratings
Unit
Storage temperature
T
STG
-40~+125
C
Operating temperature
T
OPR
-25~+75
C
Power supply voltage
V
CC
max.
15
V
Allowable loss
Pd
700
mW
Item
Symbol
Ratings
Unit
Operating temperature
T
OPR
-25~+75
C
Operating voltage
V
OP
11~13
V
Item
Symbol
Measurement conditions
Min. Typ. Max. Unit
Consumption current
I
CC
No-signal, no-load
33.5
40.0
mA
[FS pin output level]
High voltage
V
FSH
FS pin control High selected
9.5
11.0
12.0
V
Middle voltage
V
FSM
FS pin control Mid selected
4.5
6.0
7.0
V
Low voltage
V
FSL
FS pin control Low selected
0.2
1.0
V
[Crosstalk]
V
OUT
1
CT
V1
V
OUT
2
CT
V2
V
IN
=1V
P-P
f=4.43MHz
-70
-50
dB
V
OUT
3
CT
V3
L
OUT
1
CT
L1
L
OUT
2
CT
L2
V
IN
=1Vrms f=1kHz
-90
-70
dB
L
OUT
3
CT
L3
R
OUT
1
CT
R1
R
OUT
2
CT
R2
V
IN
=1Vrms f=1kHz
-90
-70
dB
R
OUT
3
CT
R3
[V
OUT
1]
Voltage gain
G
V1
V
IN
=1V
P-P
f=100kHz
-0.5
0
+0.5
dB
Frequency characteristic
F
V1
V
IN
=1V
P-P
10MHz/100kHz
-1.0
0
+1.0
dB
Differential gain
DG
1
V
IN
=1V
P-P
: staircase APL = 10~90%
-3
0
+3
%
Differential phase
DP
1
V
IN
=1V
P-P
: staircase APL = 10~90%
-3
0
+3
deg
Maximam output level
V
OV1
f = 100kHz, Maximum output at THD < 1.0%
2.1
V
P-P
Input pin voltage
V
IV1
No-signal, no-load
2.3
2.8
3.3
V
Output pin voltage
V
OV1
No-signal, no-load
1.0
1.5
2.0
V
[V
OUT
2, V
OUT
3]
Voltage gain
G
V2
V
IN
=1V
P-P
f=100kHz
5.5
6.0
6.5
dB
G
V3
Frequency characteristic
F
V2
V
IN
=1V
P-P
10MHz/100kHz
-1.0
0
+1.0
dB
F
V3
Differential gain
DG
2
V
IN
=1V
P-P
: staircase APL = 10~ 90%
-3
0
+3
%
DG
3
MITSUMI
AV Switch for I
2
C BUS Control, 4-input, 3-output and Canal Plus Compatible MM1422, 1423, 1442, 1443
Item
Symbol
Measurement conditions
Min. Typ. Max. Unit
Differential phase
DP
2
V
IN
=1V
P-P
: staircase APL = 10~90%
-3
0
+3
deg
DP
3
Maximam output level
V
OV2
f = 100kHz, Maximum output at THD < 1.0%
4.2
V
P-P
V
OV3
Input pin voltage
V
IV2
No-signal, no-load
2.3
2.8
3.3
V
V
IV3
Output pin voltage
V
OV2
No-signal, no-load
1.0
1.5
2.0
V
V
OV3
[L
OUT
1, R
OUT
1]
G
1L1
V
IN
=1Vrms f=1kHz
-0.5
0
+0.5
dB
Voltage gain
TUN-L GAIN adjustment at 0dB
G
2L1
V
IN
=0.25Vrms f=1kHz
11.5
12
12.5
dB
TUN-L GAIN adjustment at 12dB
Maximam output level
D
L1
V
CC
= 12V, f = 1kHz Maximum output at THD < 0.5%
3.0
Vrms
Total harmonic distortion
THD
L1
V
IN
such that V
OUT
= 1Vrms, f = 1kHz
0.03
0.1
%
Output noise voltage
V
NL1
A curve band 20kHz
3
50
Vrms
Output offset voltage
V
OFL1
DC step for switching
-15
0
15
mV
Input impedance
Z
INL1
100
150
200
k
Input pin voltage
V
IL1
No-signal, no-load
5.30
5.65
6.00
V
Output pin voltage
V
OL1
No-signal, no-load
5.30
5.65
6.00
V
[L
OUT
2, L
OUT
3, R
OUT
2, R
OUT
3]
G
OL2
V
IN
=1Vrms TUN-L=0dB
-0.5
0
+0.5
dB
G
OL3
Output GAIN adjustment at 0dB
G
2L2
V
IN
=1Vrms TUN-L=0dB
1.5
2
2.5
dB
Voltage gain
G
2L3
Output GAIN adjustment at 2dB
G
4L2
V
IN
=1Vrms TUN-L=0dB
3.5
4
4.5
dB
G
4L3
Output GAIN adjustment at 4dB
G
6L2
V
IN
=1Vrms TUN-L=0dB
5.5
6
6.5
dB
G
6L3
Output GAIN adjustment at 6dB
Maximam output level
V
L2
V
CC
=12V f=1kHz
3.0
Vrms
V
L3
Maximum output when THD < 0.5%
Total harmonic distortion
THD
L2
V
IN
such that V
OUT
= 1Vrms
0.03
0.1
%
THD
L3
f=1kHz G=0, 2, 4, 6dB
Output noise voltage
V
NL2
A curve band 20kHz
20
50
Vrms
V
NL3
Output offset voltage
V
OFL2
DC step for switching
-15
0
15
mV
V
OFL3
Input impedance
Z
INL2
100
150
200
k
Z
INL3
Input terminal voltage
V
IL2
No-signal, no-load
5.30
5.65
6.00
V
V
IL3
Output terminal voltage
V
OL2
No-signal, no-load
5.30
5.65
6.00
V
V
OL3
[Logic] (refer to next page)
Input voltage L
V
IL
I
2
C logic L level judgment value
0.0
1.5
V
Input voltage H
V
IH
I
2
C logic H level judgment value
3.0
5.0
V
Low level output voltage
V
OL
for SDA 3mA inflow
0.0
0.4
V
High level input current
I
IH
for SDA, SCL = 4.5V impressed
-10
+10
A
Low level input current
I
IL
for SDA, SCL = 0.4V impressed
-10
+10
A
Clock frequency
f
SCL
100
kHz
MITSUMI
AV Switch for I
2
C BUS Control, 4-input, 3-output and Canal Plus Compatible MM1422, 1423, 1442, 1443
Item
Symbol
Measurement conditions
Min. Typ. Max. Unit
Data transfer waiting time
t
BUF
4.7
S
SCL start hold time
t
HD
:
STA
4.0
S
SCL low level hold time
t
LOW
4.7
S
SCL high level hold time
t
HIGH
4.0
S
SCL start setup time
t
SU
:
STA
4.7
S
SDA data hold time
t
HD
:
DAT
200
nS
SDA data setup time
t
SU
:
DAT
250
nS
SCL rise time
t
R
1000
nS
SCL fall time
t
F
300
nS
SCL stop setup time
t
SU
:
STO
4.0
S
SDA
SCL
P
S
Sr
P
t
BUF
t
HD:STA
t
HD:DAT
t
SU:DAT
t
SU:STA
t
SU:STO
t
HIGH
t
LOW
t
R
t
F
I
2
C BUS control signal
I
2
C BUS
SDA
SCL
S
1
2
3
4
5
6
7
8
A
1
2
3
7
8
A
P
S : Start Condition
P : Stop Condition
A : Acknowledge
I
2
C BUS (Inter IC BUS) is an inter bus system developed by Philips Co. It transmits and receives data through
2 (SDA, SCL) lines. Data are transmitted and received in the units of bytes by MSB first from the start
condition.
[Control registers]
Control registers are data sent from the master for determining the switch condition of the MM1422 series.
A
A
P
A
S
Address byte
Control data
Slave address
R/W
1
0
0
1
0
0
0
0
Control Register 1
b7 b6 b5 b4 b3 b2 b1 b0
Control Register 2
b7 b6 b5 b4 b3 b2 b1 b0
MITSUMI
AV Switch for I
2
C BUS Control, 4-input, 3-output and Canal Plus Compatible MM1422, 1423, 1442, 1443
The data format of the MM1422 series is set as shown in the above figure. Out of the address bytes, first 7
bits are assigned to the slave addresses, while the residual 1 bit is assigned to the R/W bit. Set the R/W bit to
0 when data are used as control registers. Slave address of the MM1422 series is 90H. Each bit of control
registers is reset to 0. MM1422 series consists of one address byte and two control data bytes(3 bytes in
total). For details of the control contents of control register 1 and 2, refer to the separate table.
All data over the limited length (4th and subsequent bytes) are fully neglected. Because of this, the faulty
operation that switch changes by the data after the 4th byte doesn't occur.
Each audio output can be set to mute by setting MUTE terminal to high.
[Status registers]
There is no preparation of the status register in MM1422 series. A status register returns all the 1 when is set
in the R/W bit.
b7
b6
b5
b4
b3
b2
b1
b0
OUT 1 select
OUT 2 select
OUT 3 select
FS CTRL
b7
b6
b5
b4
b3
b2
b1
b0
0, 12dB select
Port 1 CTRL
Port 2 CTRL
Audio OUT2 gain select
Audio OUT3 gain select
Mute
[Control Register 1]
[Control Register 2]
S
Slave address
R/W
A
status register
NA
P
1
0
0
1
0
0
0
1
b7
b6
b5
b4
b3
b2
b1
b0
Address byte
Status data
MITSUMI
AV Switch for I
2
C BUS Control, 4-input, 3-output and Canal Plus Compatible MM1422, 1423, 1442, 1443
Switch Control Table
[Control register 1] (2nd byte)
[Control register 2] (3rd byte)
b7
b6
b5
b4
b3
b2
b1
b0
V OUT1
A OUT1
V OUT2
A OUT2
V OUT3
A OUT3
FS
0
0
*
1
MUTE
0
1
TUNER
TUNER
1
0
SCART E1 SCART E1
1
1
SCART E2 SCART E2
0
0
*
1
MUTE
0
1
TUNER
TUNER
1
0
SCART E1 SCART E1
1
1
EXT IN
EXT IN
0
0
*
2
MUTE
0
1
EXT IN
EXT IN
1
0
SCART E2 SCART E2
1
1
SCART E2 SCART E2
0
0
Low
0
1
Middle
1
0
High
1
1
High
Note 1 : Previous choice condition is held. TUNER is chosen at power on.
Note 2 : Previous choice condition is held. EXT IN is chosen at power on.
b7
b6
b5
b4
b3
b2
b1
b0
0, 12dB
Port 1
Port 2
GainOUT2 GainOUT3
MUTE
0
0dB
1
12dB
0
Low
1
High
0
Low
1
High
0
0
0dB
0
1
2dB
1
0
4dB
1
1
6dB
0
0
0dB
0
1
2dB
1
0
4dB
1
1
6dB
0
OFF
1
ON
MITSUMI
AV Switch for I
2
C BUS Control, 4-input, 3-output and Canal Plus Compatible MM1422, 1423, 1442, 1443
Measuring Circuit
MITSUMI
AV Switch for I
2
C BUS Control, 4-input, 3-output and Canal Plus Compatible MM1422, 1423, 1442, 1443
Application Circuit
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