Datasheet

AD9255 Data Sheet
Rev. C | Page 12 of 44
Pin No. Mnemonic Type Description
22
D9
Output
CMOS Output Data.
23 D10 Output CMOS Output Data.
24 D11 Output CMOS Output Data.
25 D12 Output CMOS Output Data.
26 D13 (MSB) Output CMOS Output Data.
27 OR Output Overrange Output.
8 DCO Output Data Clock Output.
SPI Control
31 SCLK/DFS Input SPI Serial Clock/Data Format Select Pin in External Pin Mode.
30 SDIO/DCS Input/output SPI Serial Data I/O/Duty Cycle Stabilizer Pin in External Pin Mode.
32 CSB Input SPI Chip Select (Active Low).
ADC Configuration
6 OEB Input Output Enable Input (Active Low).
35 DITHER Input
In external pin mode, this pin sets dither to on (active high). Pull low for control via
SPI in SPI mode.
41 LVDS_RS Input
In external pin mode, this pin sets LVDS reduced swing output mode (active high).
Pull low for control via SPI in SPI mode.
44 LVDS Input
In external pin mode, this pin sets LVDS output mode (active high). Pull low for
control via SPI in SPI mode.
48 PDWN Input
Power-down input in external pin mode. In SPI mode, this input can be configured
as power-down or standby.