sm5351af1 Seiko NPC Corp., sm5351af1 Datasheet - Page 17

• Manufacturer Part Number: sm5351af1
• Description: Audio Video Switch
• Manufacturer: Seiko NPC Corp.

Control Register
The SM5351AF1 has a 3-byte control register.
The function of each byte in the control register is described in the following tables.
Register name: VIDEO
Sub-address: 00h, bit3 to bit0
Select video signal source for output (YOUT, CbOUT, CrOUT).
Register name: AUDIO
Sub-address: 01h, bit3 to bit0
Select audio signal source for output.
Register name: Filter
Sub-address: 02h, bit1 to bit0
Sets the cutoff frequency of lowpass filter for video output (YOUT, CbOUT, CrOUT).
addr.
sub
00h
01h
02h
bit3
bit3
bit1
0
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
1
1
Control Register
sub addr. 02h
bit7
bit2
bit2
bit0
0
0
0
0
0
0
0
1
0
0
1
1
0
0
0
0
1
1
0
1
0
1
Control Register
Control Register
sub addr. 00h
sub addr. 01h
(Hex)
bit6
bit1
bit1
0h
1h
2h
3h
0
0
0
0
0
1
1
0
0
0
0
0
0
0
1
1
0
0
bit5
bit0
bit0
6.75MHz
13.5MHz
0
0
0
0
1
0
1
0
0
1
0
1
0
1
0
1
0
1
30MHz
Bypass
YOUT
Register assign
(Hex)
(Hex)
bit4
Ch
Dh
0h
1h
2h
3h
4h
8h
9h
0h
1h
2h
3h
4h
5h
0
0
0
6.75MHz
13.5MHz
CbOUT
30MHz
Bypass
YOUT
Filter
mute
bit3
SY1
SY2
DY1
DY2
V1
V2
V3
V4
0
LOUT
mute
LV1
LV2
LV3
LV4
LV5
OUTPUT
OUTPUT
CbOUT
DCb1
DCb2
mute
mute
mute
mute
mute
SC1
SC2
bit2
SM5351AF1
0
VIDEO
AUDIO
6.75MHz
13.5MHz
CrOUT
Bypass
30MHz
ROUT
mute
RV1
RV2
RV3
RV4
RV5
CrOUT
mute
mute
mute
mute
mute
mute
mute
DCr1
DCr2
bit1
Filter
mute (default)
V1 input select
V2 input select
V3 input select
V4 input select
S-video 1 (SY1, SC1) input select
S-video 2 (SY2, SC2) input select
D-terminal 1 (DY1, DCb1, DCr1) input select
D-terminal 2 (DY2, DCb2, DCr2) input select
mute (default)
LV1, RV1 input select
LV2, RV2 input select
LV3, RV3 input select
LV4, RV4 input select
LV5, RV5 input select
Passband: 6.75MHz
Passband: 13.5MHz
Passband: 30MHz
Filter bypass
bit0
default
(Hex)
00h
00h
00h
YOUT, CbOUT, CrOUT video output and
standby select
LOUT, ROUT audio output and standby
select
YOUT, CbOUT, CrOUT video output filter
select
SEIKO NPC CORPORATION —17
Description
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