CDB5378
DS639DB4
9
J11
VA+ Voltage Selection
+2.5VA
1
----------
2
+5VA
3
*
*
4
5
*
*
6
J12
VD Input Voltage Source
1
*
*
2
EXT_VD
3
----------
4
J22
VD Voltage Selection
+3.3VD
1
----------
2
EXT_VD
3
*
*
4
J13
VCORE Input Voltage Source
1
*
*
2
EXT_VD
3
----------
4
J21
VCORE Voltage Selection
+3.3VD
1
----------
2
+2.5VD
3
*
*
4
EXT_VD
5
*
*
6
J10
VA- Voltage Selection
-2.5VA
1
----------
2
GND
3
*
*
4
EXT_VA-
5
*
*
6
Table 3. VREF, Power Supplies Default Jumper Settings
J19
Voltage Reference Jumpers
VREF-
4
----------
3
VREF+
2
----------
1
J16, J17, J18
Digital Filter, CPLD,
Microcontroller
Input Clock Selections
32.768 MHz
1
----------
2
16.384 MHz
3
*
*
4
8.192 MHz
5
*
*
6
4.096 MHz
7
*
*
8
2.048 MHz
9
*
*
10
1.024 MHz
11
*
*
12
CLK_EXT
13
*
*
14
15
*
*
16
Table 4. Clock Default Jumper Settings
J5
Clock Input TERM
50 Ohms
2
*
*
1
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