参数资料
型号: BH2221FV-E2
厂商: Rohm Semiconductor
文件页数: 5/10页
文件大小: 0K
描述: IC CONV D/A 8BIT 12CH SSOP-B20
标准包装: 1
设置时间: 100µs
位数: 8
数据接口: 串行
转换器数目: 12
电压电源: 单电源
工作温度: -20°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-LSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-SSOP-B
包装: 标准包装
输出数目和类型: 12 电压,单极
采样率(每秒): *
其它名称: BH2221FV-E2-DKR
BH2221FV-E2-DKR-ND
BH2221FV-E2DKR
BH2223FV,BH2221FV
Technical Note
4/7
www.rohm.com
2010.06 - Rev.B
2010 ROHM Co., Ltd. All rights reserved.
●Equivalent Circuit
Terminal
Equivalent Circuit
Terminal
Equivalent Circuit
AO1
~
AO12
DI
CLK
LD
Fig.4 Equivalent Circuit
●Operation Description
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.
Fig.5
Data Settings
D0
D1
D3
D4
D5
D6
D7
Setting
0
GND
1
0
(VCC or VDD-GND)/256x1
0
1
0
(VCC or VDD-GND)/256x2
1
0
(VCC or VDD -GND)/256x3
0
1
0
(VCC or VDD -GND)/256x4
~
0
1
(VCC or VDD -GND)/256x254
1
(VCC or VDD -GND)/256x255
Channel Settings
D8
D9
D10
D11
BH2223FV
BH2221FV
0
Inconsequential
0
1
AO1
0
1
0
AO2
0
1
AO3
0
1
0
AO4
0
1
0
1
AO5
0
1
0
AO6
0
1
AO7
1
0
AO8
1
0
1
AO9
1
0
1
0
AO10
1
0
1
Inconsequential
AO11
1
0
Inconsequential
AO12
1
0
1
Inconsequential
1
0
Inconsequential
1
Inconsequential
LD
CLK
DI
D11
X
1
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
2
3
4
56789
10
11
12
GND
VCC
GND
VCC
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