BH2223FV_09 ROHM [Rohm], BH2223FV_09 Datasheet - Page 4

• Manufacturer Part Number: BH2223FV_09
• Description: Standard 8bit 10ch-E12ch Type D/A Converters
• Manufacturer: ROHM [Rohm]

●Equivalent Circuit
●Operation Description
© 2009 ROHM Co., Ltd. All rights reserved.
BH2223FV, BH2221FV
www.rohm.com
Command Transmission
The Control command consists of 3 lines of 12bit serial input data (MSB first).
Data is read at the rising edge of the CLK, and output data is determined in LD High area and held in the LD Low area.
Data Settings
Channel Settings
D0
D8
Terminal
0
1
0
1
0
0
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
AO12
AO1
CLK
LD
~
DI
D1
D9
0
0
1
1
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
X
VCC
GND
D10
D3
0
0
0
0
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D11
Equivalent Circuit
1
D10
D11
2
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
3
~
GND
VCC
Inconsequential
AO1
AO2
AO3
AO4
AO5
AO6
AO7
AO8
AO9
AO10
Inconsequential
Inconsequential
Inconsequential
Inconsequential
Inconsequential
D4
D8
0
0
0
0
0
1
1
4
Fig.4 Equivalent Circuit
D7
5
D5
0
0
0
0
0
1
1
BH2223FV
D6
6
Terminal
Fig.5
4/7
CLK
D5
LD
7
DI
D6
0
0
0
0
0
1
1
D4
8
D7
D3
0
0
0
0
0
1
1
9
VCC
GND
D2
10
Inconsequential
AO1
AO2
AO3
AO4
AO5
AO6
AO7
AO8
AO9
AO10
AO11
AO12
Inconsequential
Inconsequential
Inconsequential
GND
(VCC or VDD-GND)/256x1
(VCC or VDD-GND)/256x2
(VCC or VDD -GND)/256x3
(VCC or VDD -GND)/256x4
(VCC or VDD -GND)/256x254
(VCC or VDD -GND)/256x255
Equivalent Circuit
D1
11
D0
12
BH2221FV
Setting
X
~
GND
VCC
Technical Note
2009.06 - Rev.A