sm5330af Nippon Precision Circuits Inc, (NPC), sm5330af Datasheet - Page 13

• Manufacturer Part Number: sm5330af
• Description: 3-channel Video Filter With Built-in 4-system Switch
• Manufacturer: Nippon Precision Circuits Inc, (NPC)

Slave Address
The 7-bit slave address is selected using the ADS pin. When ADS = “L” the address is 48h, when ADS = “H”
the address is 49h, and when ADS = “Z” (open) the address is 4Ah. A maximum of three SM5330A devices
can be connected to one I
each using the ADS pin.
SLAVE ADDRESS for control register write
SLAVE ADDRESS for status register read
Control Register
The SM5330A has a 5-byte control register.
CONTROL REGISTER MAP
The function of each byte in the control register is described in the following tables.
SUB ADDRESS: 00h − Filter fc setting
Sets the cutoff frequency. When FCM = “0” the filter is set to SD mode, and when FCM = “1” the filter is set to
HD mode. The relationship between the register value and the cutoff frequency is described in section “Low-
pass Filter”.
default
Name
Name
Name
Value
Value
Addr.
Value
00h
01h
02h
03h
04h
FCM
FCM
bit7
bit7
bit7
bit7
−
1
1
1
1
1
1
0
0
1
0
0
0
1
1
1
IM1
bit6
bit6
bit6
bit6
−
−
0
0
0
0
0
0
0
0
0
0
0
0
0
INSEL
2
bit5
bit5
bit5
bit5
C BUS simultaneously, and controlled independently by setting the slave address of
0
0
0
0
0
0
0
0
1
0
1
SLAVE ADDRESS
SLAVE ADDRESS
IM2
bit4
bit4
bit4
bit4
1
1
1
1
1
1
0
0
1
0
1
DAC0
DAC1
bit3
bit3
bit3
bit3
−
0
0
0
0
0
0
0
0
1
0
1
FCSET
FCSET
IM3
:
:
bit2
bit2
bit2
bit2
−
0
0
1
0
0
1
0
0
1
0
1
SM5330A
I/O1
bit1
bit1
bit1
bit1
0
1
0
0
1
0
0
0
1
0
1
IM4
R/W
R/W
I/O0
bit0
bit0
bit0
bit0
0
0
0
1
1
1
0
0
1
0
1
Filter fc setting
Input mode setting
Input switch select, I/O output control
DAC_0 output control
DAC_1 output control
(Hex)
(Hex)
(Hex)
BFh
90h
92h
94h
91h
93h
95h
00h
00h
3Fh
80h
:
:
Indicate to write when device's slave
address is 48h (ADS = "L")
Indicate to write when device's slave
address is 49h (ADS = "H")
Indicate to write when device's slave
address is 4Ah (ADS = "Z")
Indicate to read when device's slave
address is 48h (ADS = "L")
Indicate to read when device's slave
address is 49h (ADS = "H")
Indicate to read when device's slave
address is 4Ah (ADS = "Z")
Set filter to SD mode (default)
Set filter to HD mode
fc = 5.11MHz (default)
:
fc = 13.30MHz
fc = 15.61MHz
:
fc = 40.27MHz
SEIKO NPC CORPORATION —13
Description
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