bh2227fv ROHM Co. Ltd., bh2227fv Datasheet - Page 5

• Manufacturer Part Number: bh2227fv
• Description: Standard 8bit 4ch?6ch Type D/a Converters Now Available
• Manufacturer: ROHM Co. Ltd.

●Operation Description
Data Settings
Note: Initial status D[7:0]=00h
Channel Settings
The Control command consists of 3-lines of 12bit serial input data (MSB first).
Data is read at the rise edge of CLK, and data becomes valid in the CSB Low area (before the CSB rise for 12bit data).
· Command Transmission
D0
D8
CSB
CLK
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
1
0
1
0
0
1
DI
D9
D1
0
0
1
1
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
X
D10
D2
0
0
0
0
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D11
12
D10
D11
11
D3
0
0
0
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
D9
~
10
Inconsequential
AO1
AO2
Inconsequential
Inconsequential
AO3
AO4
Inconsequential
Inconsequential
Inconsequential
Inconsequential
Inconsequential
Inconsequential
Inconsequential
Inconsequential
Inconsequential
D4
0
0
0
0
0
1
1
D8
9
D7
8
D5
BH2227FV
0
0
0
0
0
1
1
D6
7
Fig.5
5/8
D6
0
0
0
0
0
1
1
D5
6
D4
5
D7
0
0
0
0
0
1
1
D3
4
GND
(VDD or VFS-GND)/256x1
(VDD or VFS-GND)/256x2
(VDD or VFS-GND)/256x3
(VDD or VFS-GND)/256x4
~
(VDD or VFS-GND)/256x254
(VDD or VFS-GND)/256x255
Inconsequential
AO1
AO2
AO3
AO4
AO5
AO6
Inconsequential
Inconsequential
Inconsequential
Inconsequential
Inconsequential
Inconsequential
Inconsequential
Inconsequential
Inconsequential
D2
3
D1
2
BH2228FV
D0
1
Setting
X