BU2506FV_09 Datasheet, PDF (3/9 Pages) Rohm – High-precision 10bit 8ch 10ch Type D/A Converters

BU2506FV,BU2505FV
Technical Note
●Cascade Connection
A cascade connection data output terminal (DO) is available for reducing the design load when the number of channels is increased.
The DO terminal can be connected directly to the data input terminal (DI) of the next stage. Its effectiveness increases as
the number of channels increases.The data transition timing is as shown below.
DO
BU2505FV
LD
CLK
(* 2)
DI
LD
CPU
CLK
DI
DO
BU2505FV
LD
CLK
(* 1)
DI
CLK
DI
Data of #1
LD
DO
Data of #2
In a cascade connection, in order to have sufficient data change and clock edge time margins, make the clock line the shortest.
●Block Diagrams
BU2505FV
BU2506FV
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2009.06 - Rev.A