Datasheet

1.2 Power supply
The board is powered with a single 3.3 V
DC
power supply. A power supply regulator is
used to supply all the circuitry on the board.
Table 1. General power supply
Name Function View
J4 +3.3V green connector – Power supply 3.3 V
DC
/ 100 mA.
J7 Do not connect, optional. Internal 1.8V regulator.
+1.8V green connector – Power supply 1.8 V
DC
/ 50 mA
TP1 DGND test point – Digital ground
TP2 AGND test point – Analog ground
1.3 Input signals (IN, CLK)
The ADC0808S clock inputs are selectable between 1.8 V Complementary Metal Oxide
Semiconductor (CMOS) or Low-Voltage Differential Signals (LVDS).
To ensure a good evaluation of the device, the input signal and the input clock must be
synchronized together.
Moreover, the input frequency (Fi, MHz) and the clock frequency (Fclk, Msps) should
follow the formula:
,where M is an odd number of period and N is the number of samples.
J4
J7
TP2
TP1