MM1422 查看數據表（PDF） - Mitsumi
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MM1422 Datasheet PDF : 13 Pages
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MITSUMI
Canal+Compatible I2C Bus Controlled 4-input 3-output AV Switch MM1422, 1423, 1442, 1443
Switch Control Table
[Control register 1] (2nd byte)
b7 b6 b5 b4 b3 b2 b1 b0 V OUT1 A OUT1 V OUT2 A OUT2 V OUT3 A OUT3 FS
00
01
*1 MUTE
TUNER TUNER
10
SCART E1 SCART E1
11
SCART E2 SCART E2
00
01
*1 MUTE
TUNER TUNER
10
SCART E1 SCART E1
11
EXT IN EXT IN
00
01
*2 MUTE
EXT IN EXT IN
10
SCART E2 SCART E2
11
SCART E2 SCART E2
00
Low
01
Middle
10
High
11
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.
[Control register 2] (3rd byte)
b7 b6 b5 b4 b3 b2 b1 b0 0, 12dB
0
0dB
1
12dB
0
1
0
1
00
01
10
11
00
01
10
11
0
1
Port 1
Low
High
Port 2 GainOUT2 GainOUT3 MUTE
Low
High
0dB
2dB
4dB
6dB
0dB
2dB
4dB
6dB
OFF
ON
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