BW1254X Datasheet, PDF (15/18 Pages) Samsung semiconductor – 0.35μm 14-BIT 10MSPS ADC

0.35µm 14-BIT 10MSPS ADC
BW1254X
PHANTOM CELL INFORMATION (Continued)
Pin Name
VDDA
VSSA
VBBA
VDDD
VSSD
VBBD
AINT
AINC
CKIN
REFTOP
REFBOT
CML
CML1
BGR
ITEST
STBY
ORI
DO[13]
DO[12]
DO[11]
DO[10]
DO[9]
DO[8]
DO[7]
DO[6]
DO[5]
DO[4]
DO[3]
DO[2]
DO[1]
DO[0]
Pin Usage
External
External
External
External
External
External
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
External/Internal
Pin Layout Guide
- Maintain the large width of lines as far as the pads.
- place the port positions to minimize the length of power lines.
- Do not merge the analog powers with anoter power from other
blocks.
- Use good power and ground source on board.
- Do not overlap with digtal lines.
- Maintain the shotest path to pads.
- Separate from all other analog signals
- Maintain the larger width and the shorter length as far as the pads.
- Separate from all other digital lines.
- Separate from all other digital lines.
- Separated from the analog clean signals if possible.
- Do not exceed the length by 1,000um.
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