EVAL-AD7899CB Datasheet, PDF (3/12 Pages) –

EVAL-AD7899CB
SET-UP CONDITIONS
Care should be taken before applying power and signals to the evaluation board to ensure that all link positions are as
per the required operating mode. Table I shows the position in which all the links are set when the evaluation board is
shipped. The board is compatible with the EVAL-BOARD CONTROLLER when shipped.
Link No.
LK1
LK2
LK3-5
LK6
Position
B
A
B
A
Table I. Initial Link and Switch Positions
Function.
The largest voltage range for the part is selected.
The AD780 is selected as the reference source for the AD7899.
The EVAL-BOARD CONTROLLER is used to provide the supply voltages for the
evaluation board.
The V_DRIVE pin is connected to the VDD supply.
LK7
B
The CONVST signal is provided by the EVAL-BOARD CONTROLLER.
LK8
B
LK9
B
The CLKIN can be supplied either by an external signal connected to SK3 or by the
AD7899s internal oscillator.
The STBY pin is tied to VDD
REV. 0
–3–