AD9148 Datasheet, PDF (32/73 Pages) Analog Devices – Quad 16-Bit,1 GSPS, TxDAC+ Digital-to-Analog Converter

AD9148
Register Name
Coeff I Byte 0
Coeff I Byte 1
Coeff I Byte 2
Coeff I Byte 3
Coeff Q Byte 0
Coeff Q Byte 1
Addr
(Hex) Bit
20 7
6:3
Name
0
Coeff_1i
2:0 Coeff_0i
21 7:5 Coeff_3i[2:0]
4:0 Coeff_2i
22 7:5 Coeff_4i[2:0]
4
0
3:0 Coeff_3i[6:3]
23 7
0
6:0 Coeff_4i[9:3]
24 7
0
6:3 Coeff_1q
2:0 Coeff_0q
25 7:5 Coeff_3q[2:0]
4:0 Coeff_2q
Preliminary Technical Data
Function
Set this bit to 0.
I-Path DAC Sinc^-1 Filter Coefficient 2 in twos complement
format.
I-Path DAC Sinc^-1 Filter Coefficient 1 in twos complement
format.
Set DAC SPI select = 0 to configure DAC 1 path.
Set DAC SPI select = 1 to configure DAC 3 path.
I-Path DAC Sinc^-1 Filter Coefficient 4 (LSB) in twos
complement format.
I-Path DAC Sinc^-1 Filter Coefficient 3 in twos complement
format.
Set DAC SPI select = 0 to configure DAC 1 path.
Set DAC SPI select = 1 to configure DAC 3 path.
I-Path DAC Sinc^-1 Filter Coefficient 5 (LSB) in twos
complement format.
Set this bit to 0.
Set I-Path DAC Sinc^-1 Filter Coefficient 4 (MSB) in twos
complement format.
DAC SPI select = 0 to configure DAC 1 path.
Set DAC SPI select = 1 to configure DAC 3 path.
Set this bit to 0.
I-Path DAC Sinc^-1 Filter Coefficient 5 (MSB) in twos
complement format.
Set DAC SPI select = 0 to configure DAC 1 path.
Set DAC SPI select = 1 to configure DAC 3 path.
Set this bit to 0.
Q-Path DAC Sinc^-1 Filter Coefficient 2 in twos complement
format
Q-Path DAC Sinc^-1 Filter Coefficient 1 in twos complement
format.
Set DAC SPI select = 0 to configure DAC 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
Q-Path DAC Sinc^-1 Filter Coefficient 4 (LSB) in twos
complement format.
Q-Path DAC Sinc^-1 Filter Coefficient 3 in twos complement
format.
Set DAC SPI select = 0 to configure DAC 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
Default
0
0
0
6
0
7
0
F
0
7F
0
D
1
7
6
Rev. PrA | Page 32 of 73