SiTime SiT6702DM, User Manual

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SiT6702DM Rev. 1.01 Page 3 of 17 www.sitime.com
SiT6702DM Demo Board User Manual
board via an SPI interface. See Figure 4 for connection diagram.
OE Control
A two-pin connector (P6) is available for switching the output of the oscillator
(it is effected only for PIN control option)
DUT VDD A two-pin connector (P7) provides power to the
SiT6712EB/SiT6722EB/SiT6722SEB boards
Figure 1: SiT6702DM main connections
The power source can be selected by changing the resistor assembly configuration. Table 3 shows the
truth table for different configurations.
Table 3: Power options
Power
Option
R9 R10 Comment
USB (default) 0 Ω
Do not
stuff
Board is powered from USB
External
Do not
stuff
0 Ω Board is powered from external supply connected to P3
Figures 2-4 show connection diagrams between the SiT6702DM board and SiT6722EB/SiT6722SEB EVBs
(
Figure 2 ) and SiT6712EB ( Figure 3 , Figure 4 ) for I
2
C and SPI interface usage respectively. The
SiT6722EB/SiT6722SEB boards use an I
2
C interface only.
Two interface cables are supplied with the SiT6702DM: one is intended for connecting to the I
2
C
interface of the SiT6722EB/SiT6722SEB EVBs and the second is intended for connecting to the I
2
C/SPI
Board Power
Selection
Board Power
LED
Indicator
External
Power
Connector
DUT VDD
I
2
C Interface
OE Control
SPI Interface
USB
Interface for
Connection
to the PC