PCI-PID01 User‟s Manual
15
3-2-12
Square- wave Control Switch (VR3)
Adjust the frequency square-wave which is inserted in dithering mode.
3-2-13
VREF- Control Switch (VR4)
This is a variable resistor for controlling VREF-(-5V) voltage.
3-2-14
VREF+ Control Switch (VR4)
This is a variable resistor for controlling VREF+(+5V) voltage.
3-2-15
SYNC Signal Interface Connector (J8)
It is a synchronization signal connector between boards. Synchronous mode operation
consists of one Master board and several Slave boards, and for synchronization signal
connection, connect the J8 connector of each board with the same pin number.
If the board is a Master, it outputs the signals in Table 10, and if it is a Slave, it receives the
signals.
When operating in independent mode, each board must operate as a Master, so the J8
connection cable must be removed as there is a risk of signal collision.
HEADER 2x5, 2.54mm
[Table 10. SYNC Signal Connector]
Pin No.
Name
Description
Remark
1
Trigger
Operation synchronization signal
3.3V CMOS
2-5
-
Reserved
6
Clk_io
40Mhz Fixed clock signal
3.3V CMOS
7
Clk_pll
PLL Variable clock signal
3.3V CMOS
