AD9122 Analog Devices, AD9122 Datasheet - Page 23

• Manufacturer Part Number: AD9122
• Manufacturer: Analog Devices

Specifications of AD9122

• Resolution (bits): 16bit
• Dac Update Rate: 1.23GSPS
• Dac Settling Time: n/a
• Max Pos Supply (v): +3.47V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: LVDS,Par

Addr
(Hex)
0x6C
0x6D
0x6E
0x6F
0x70
0x71
0x72
0x73
0x7F
Table 11. Device Configuration Register Descriptions
Register
Name
Comm
Power
Control
Data
Format
Interrupt
Enable
Register Name
Compare I1 LSBs
Compare
I1 MSBs
Compare
Q1 LSBs
Compare
Q1 MSBs
SED I LSBs
SED I MSBs
SED Q LSBs
SED Q MSBs
Revision
Address
(Hex)
0x00
0x01
0x03
0x04
Bits
7
6
5
7
6
5
4
7
6
5
[1:0]
7
6
5
4
1
0
Bit 7
0
Name
SDIO
LSB_FIRST
Reset
Power down I DAC
Power down Q DAC
Power down data
receiver
Power down auxiliary
ADC
Binary data format
Q data first
MSB swap
Data Bus Width[1:0]
Enable PLL lock lost
Enable PLL locked
Enable sync signal lost
Enable sync signal locked
Enable FIFO Warning 1
Enable FIFO Warning 2
Bit 6
0
Bit 5
Rev. B | Page 23 of 60
Description
SDIO pin operation.
0 = SDIO operates as an input only.
1 = SDIO operates as a bidirectional input/output.
Serial port communication, LSB or MSB first.
0 = MSB first.
1 = LSB first.
The device is placed in reset when this bit is written high
and remains in reset until the bit is written low.
1 = power down I DAC.
1 = power down Q DAC.
1 = power down the input data receiver.
1 = power down the auxiliary ADC for temperature sensor.
0 = input data is in twos complement format.
1 = input data is in binary format.
Indicates I/Q data pairing on data input.
0 = I data sent to data receiver first.
1 = Q data sent to data receiver first.
Swaps the bit order of the data input port.
0 = order of the data bits corresponds to the pin descriptions.
1 = bit designations are swapped; most significant bits
become the least significant bits.
Data receiver interface mode. See the LVDS Input Data Ports
section for information about the operation of the different
interface modes.
00 = word mode; 16-bit interface bus width.
01 = byte mode; 8-bit interface bus width.
10 = nibble mode; 4-bit interface bus width.
11 = invalid.
1 = enable interrupt for PLL lock lost.
1 = enable interrupt for PLL locked.
1 = enable interrupt for sync signal lost.
1 = enable interrupt for sync signal locked.
1 = enable interrupt for FIFO Warning 1.
1 = enable interrupt for FIFO Warning 2.
Errors Detected Q_BITS[15:8]
Errors Detected I_BITS[15:8]
Errors Detected Q_BITS[7:0]
Errors Detected I_BITS[7:0]
Bit 4
Compare Value Q1[15:8]
Compare Value I1[15:8]
Compare Value Q1[7:0]
Compare Value I1[7:0]
Revision[3:0]
Bit 3
Bit 2
Bit 1
0
Bit 0
0
Default
0
0
0
0
0
0
1
0
0
0
00
0
0
0
0
0
0
AD9122
Default
0x16
0x1A
0xC6
0xAA
0x00
0x00
0x00
0x00
N/A