AD9148BPCZ AD [Analog Devices], AD9148BPCZ Datasheet - Page 33

• Manufacturer Part Number: AD9148BPCZ
• Description: Quad 16-Bit,1 GSPS, TxDAC+ Digital-to-Analog Converter
• Manufacturer: AD [Analog Devices]

Preliminary Technical Data
Register Name
Coeff Q Byte 2
Coeff Q Byte 3
I Phase Adj LSB
I Phase Adj MSB
Q Phase Adj LSB
Q Phase Adj MSB
I DC Offset LSB
I DC Offset MSB
Q DC Offset LSB
Q DC Offset MSB
Addr
(Hex)
26
27
28
29
2A
2B
2C
2D
2E
2F
Bit
7:5
4
3:0
7
6:0
7:0
1:0
7:0
1:0
7:0
7:0
7:0
7:0
Name
Coeff_4q[2:0]
0
Coeff_3q[6:3]
0
Coeff_4q[9:3]
Phase Word I[7:0]
Phase Word I[9:8]
Phase Word Q[7:0]
Phase Word Q[9:8]
DC Offset I[7:0]
DC Offset I[15:8]
DC Offset Q[7:0]
DC Offset Q[15:8]
Rev. PrA | Page 33 of 73
Function
Q-Path DAC Sinc
complement format.
Set this bit to 0.
Q-Path DAC Sinc
complement format.
Set DAC SPI select = 0 to configure DAC 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
Set this bit to 0.
Q-Path DAC Sinc
complement format.
Set DAC SPI select = 0 to configure DAC 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
See Register 0x29.
Phase Word I[9:0] is used to insert a phase offset between the
I and Q data paths.
Set DAC SPI select = 0 to configure DAC 1 path.
Set DAC SPI select = 1 to configure DAC 3 path.
See Register 0x2B.
Phase Word Q[9:0] is used to insert a phase offset between
the I and Q data paths.
Set DAC SPI select = 0 to configure DAC 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
See Register 0x2D.
DC Offset I[15:0] is a value added directly to the samples
written to the IDAC. The LSB bit weight is 2
Set DAC SPI select = 0 to configure DAC 1 path.
Set DAC SPI select = 1 to configure DAC 3 path.
See Register 0x2F.
DC Offset Q[15:0] is a value added directly to the samples
written to the QDAC. The LSB bit weight is 2
Set DAC SPI select = 0 to configure DAC 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
-1
-1
-1
Filter Coefficient 5 (LSB) in twos
Filter Coefficient 4 (MSB) in twos
Filter Coefficient 5 (MSB) in twos
0
.
0
.
AD9148
Default
0
0
D
0
0
0
0
0
0
0
0
0
0
0