参数资料
型号: AD9148-EBZ
厂商: Analog Devices Inc
文件页数: 28/72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 34 of 72
Register Name
Addr
(Hex)
Bit
Name
Function
Default
Coeff Q Byte 2
26
7:5
Coeff_4q[2:0]
Q-Path DAC Sinc-1 Filter Coefficient 5 (LSB) in twos
complement format.
0
4
0
Set this bit to 0.
0
3:0
Coeff_3q[6:3]
Q-Path DAC Sinc-1 Filter Coefficient 4 (MSB) in twos
complement format.
D
Set DAC SPI select = 0 to configure DAC 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
Coeff Q Byte 3
27
7
0
Set this bit to 0.
0
6:0
Coeff_4q[9:3]
Q-Path DAC Sinc-1 Filter Coefficient 5 (MSB) in twos
complement format.
0
Set DAC SPI select = 0 to configure DAC 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
I Phase Adj LSB
28
7:0
Phase Word I[7:0]
See Register 0x29.
0
I Phase Adj MSB
29
1:0
Phase Word I[9:8]
Phase Word I[9:0] is used to insert a phase offset between the
I and Q data paths. The adjustment range is ±1.75°.
0
Set DAC SPI select = 0 to configure DAC 1 path.
Set DAC SPI select = 1 to configure DAC 3 path.
Q Phase Adj LSB
2A
7:0
Phase Word Q[7:0]
See Register 0x2B.
0
Q Phase Adj MSB
2B
1:0
Phase Word Q[9:8]
Phase Word Q[9:0] is used to insert a phase offset between
the I and Q data paths. The adjustment range is ±1.75°.
0
Set DAC SPI select = 0 to configure DAC 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
I DC Offset LSB
2C
7:0
DC Offset I[7:0]
See Register 0x2D.
0
I DC Offset MSB
2D
7:0
DC Offset I[15:8]
DC Offset I[15:0] is a value added directly to the samples
written to the IDAC. The LSB bit weight is 20. The adjustment
range is ±10 mA.
Set DAC SPI select = 0 to configure DAC 1 path.
0
Set DAC SPI select = 1 to configure DAC 3 path.
Q DC Offset LSB
2E
7:0
DC Offset Q[7:0]
See Register 0x2F.
0
Q DC Offset MSB
2F
7:0
DC Offset Q[15:8]
DC Offset Q[15:0] is a value added directly to the samples
written to the QDAC. The LSB bit weight is 20. The adjustment
range is ±10 mA.
Set DAC SPI select = 0 to configure DAC 2 path.
0
Set DAC SPI select = 1 to configure DAC 4 path.
0
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