参数资料
型号: AD9148-EBZ
厂商: Analog Devices Inc
文件页数: 30/72页
文件大小: 0K
描述: BOARD EVALUATION FOR AD9148
设计资源: AD9148-EBZ Schematic
AD9148-EBZ BOM
AD9148-EBZ Gerber Files
标准包装: 1
系列: TxDAC+®
DAC 的数量: 4
位数: 16
采样率(每秒): 1G
数据接口: 串行,SPI?
设置时间: 20ns
DAC 型: 电流
工作温度: -40°C ~ 85°C
已供物品:
已用 IC / 零件: AD9148
AD9148
Data Sheet
Rev. B | Page 36 of 72
Register Name
Addr
(Hex)
Bit
Name
Function
Default
QDAC FSC Adj
34
7:0
QDAC FSC Adj
Q DAC full-scale current adjustment (LSB part). QDAC FS
Adj[9:0] sets the full-scale current of the QDAC. The full-scale
current can be adjusted from 8.64 mA to 31.6 mA in step sizes
of approximately 22.5 A.
F9
0x000 = 8.64 mA
...
0x200 = 20.14mA
0x3FF = 31.66 mA
Set DAC SPI select = 0 to configure DAC 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
QDAC Control
35
7
QDAC sleep
Q DAC sleep mode (fast wake-up mode).
0
1:0
QDAC FSC Adj[9:8]
QDAC full-scale current adjustment (MSB part).
01
Set DAC SPI select = 0 to configure DAC 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
Aux QDAC Data
36
7:0
AUX QDAC Data
Auxiliary QDAC data (LSB part). AUX QDAC Data[9:0] sets
the magnitude of the AUX DAC current. The range is 0 mA
to 2 mA, and the step size is 2 A.
00
0x000 = 0.000 mA.
0x001 = 0x002 mA.
0x3FF = 2.046 mA.
Set DAC SPI select = 0 to configure DAC 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
Aux QDAC Control
37
7
AUX QDAC sign
Auxiliary QDAC output sign.
0
0 = positive, current is directed to the AUXx_P pin.
1 = negative, current is directed to the AUXx_N pin.
6
AUX QDAC
current direction
Auxiliary QDAC current direction.
0
0 = source.
1 = sink.
5
AUX QDAC
power-down
Auxiliary QDAC power-down.
0
1:0
AUX QDAC
Data[9:8]
Auxiliary QDAC data (MSB part).
00
Set DAC SPI select = 0 to configure DAC 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
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