AD9148BPCZ AD [Analog Devices], AD9148BPCZ Datasheet - Page 37

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

Preliminary Technical Data
Register Name
SED Control/Status
SED_R_L
SED_R_H
SED_F_L
SED_F_H
I Gain Control
Q Gain Control
Addr
(Hex)
40
41
42
43
44
50
51
Bit
7
6
5
3
2
1
0
7:0
7:0
7:0
7:0
7:0
7:0
Name
SED compare enable Enables the SED circuitry.
Port B error
detected
Port A error
detected
Auto-clear enable
Port B compare
failed
Port A compare
failed
Compare passed
SED Status Rising
Edge Samples[7:0]
SED Status Rising
Edge Samples[15:8]
SED Status Falling
Edge Samples[7:0]
SED Status Falling
Edge Samples[15:8]
IGain[7:0]
QGain[7:0]
Rev. PrA | Page 37 of 73
Function
Status of last compare on Port B.
Status of last compare on Port A.
Enables the auto reset after eight valid sample sets.
Fail status determined for last sample set on Port B.
Fail status determined for last sample set on Port A.
Pass status determined for last sample set.
SED Status Rising Edge Samples[15:0] indicate which bits
were received in error.
Set DAC SPI select = 0 to read back errors on Port A.
Set DAC SPI select = 1 to read back errors on Port B.
SED Status Rising Edge Samples[15:0] indicate which bits
were received in error.
Set DAC SPI select = 0 to read back errors on Port A.
Set DAC SPI select = 1 to read back errors on Port B.
SED Status Falling Edge Samples[15:0] indicate which bits
were received in error.
Set DAC SPI select = 0 to read back errors on Port A.
Set DAC SPI select = 1 to read back errors on Port B.
SED Status Falling Edge Samples[15:0] indicate which bits
were received in error.
Set DAC SPI select = 0 to read back errors on Port A.
Set DAC SPI select = 1 to read back errors on Port B.
IGain[7:0] is a value that directly scales the samples written to
the IDAC. The bit weighting is MSB = 2
yields a multiplier range of 0 to 3.984375.
Set DAC SPI select = 0 to configure DAC 1 path.
Set DAC SPI select = 1 to configure DAC 3 path.
QGain[7:0] is a value that directly scales the samples written
to the QDAC. The bit weighting is MSB = 2
which yields a multiplier range of 0 to 3.984375.
Set DAC SPI select = 0 to configure DAC 2 path.
Set DAC SPI select = 1 to configure DAC 4 path.
1
and LSB = 2
1
and LSB = 2
−6
, which
−6
,
AD9148
Default
0
0
0
0
0
0
0
Read-
only
Read-
only
Read-
only
Read-
only
40
40