AD9863 Analog Devices, AD9863 Datasheet - Page 28

• Manufacturer Part Number: AD9863
• Description: 12-Bit Mixed-Signal Front-End (MxFE® )Processor For Broadband Applications
• Manufacturer: Analog Devices

Specifications of AD9863

• Resolution (bits): 12bit
• # Chan: 2
• Sample Rate: 50MSPS
• Interface: Par
• Analog Input Type: Diff-Uni
• Ain Range: 2 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

AD9863
Configuring with SPI
The flexible interface can be configured with register settings. Using the register allows more device programmability. Table 15 shows the
required register writes to configure the AD9863 for FD, optional FD, HD24, optional HD24, HD12, optional HD12, and clone modes.
Note that for modes that use interleaved data buses, enabling 2× or 4× interpolation is required.
Table 15. Registers for Configuring SPI
Register Address
FD, Mode 1
Optional FD, Mode 2
HD24, Mode 4
Optional HD24, Mode 5
HD12, Mode 7
Optional HD12, Mode 8
Clone, Mode 10
Register 0x01 [7:5]
Register 0x14 [4]
Register 0x14 [2]
Register 0x13 [1:0]
Register 0x01 [7:5]
Register 0x14 [4]
Register 0x14 [2]
Register 0x13 [1:0]
Register 0x01 [7:5]
Register 0x14 [4]
Register 0x14 [2]
Register 0x13 [1:0]
Register 0x01 [7:5]
Register 0x14 [4]
Register 0x14 [2]
Register 0x13 [1:0]
Register 0x01 [7:5]
Register 0x14 [4]
Register 0x14 [2]
Register 0x13 [1:0]
Register 0x01 [7:5]
Register 0x14 [4]
Register 0x14 [2]
Register 0x13 [1:0]
Register 0x01 [7:5]
Register 0x14 [0]
Register 0x13 [1:0]
Setting
[000]
High
High
[01] or [10]
[001]
High
High
[01] or [10]
[000]
Low
Low
[00], [01], or [10]
[011]
Low
Low
[00], [01], or [10]
[000]
Low
High
[01] or [10]
[101]
Low
High
[01] or [10]
[111]
High
[01] or [10]
Rev. A| Page 28 of 40
Description
Clk_Mode. Configures timing mode.
SPIFD/HD. Configures FD mode.
SpiB12/24. Configures FD mode.
Interpolation Control. Configures 2× or 4× interpolation.
Clk_Mode. Configures timing mode.
SPIFD/HD. Configures FD mode.
SpiB12/24. Configures FD mode.
Interpolation Control. Configures 2× or 4× interpolation.
Clk_Mode. Configures timing mode.
SPIFD/HD. Configures HD mode.
SpiB12/24. Configures HD24 mode.
Interpolation Control. Configures 1×, 2×, or 4× interpolation.
Clk_Mode. Configures timing mode.
SPIFD/HD. Configures HD mode.
SpiB12/24. Configures HD24 mode.
Interpolation Control. Configures 1×, 2×, or 4× interpolation.
Clk_Mode. Configures timing mode.
SPIFD/HD. Configures HD mode.
SpiB12/24. Configures HD12 mode.
Interpolation Control. Configures 2× or 4× interpolation.
Clk_Mode. Configures timing mode.
SPIFD/HD. Configures HD mode.
SpiB12/24. Configures HD12 mode.
Interpolation Control. Configures 2× or 4× interpolation.
Clk_Mode. Configures timing mode.
SpiClone. Configures clone mode.
Interpolation Control. Configures 2× or 4× interpolation.