SI57X-EVB Datasheet, PDF (6/34 Pages) Silicon Laboratories – Si57X/598/599 ANY FREQUENCY I2C PROGRAMMABLE XO/VCXO EVALUATION BOARD

Si57x-EVB
1.5.2. Jumpers
There are eight jumper locations on the Si57x-EVB as listed in Table 3. (The reference designations J4-J5 and
J16-17 are assigned to other connector types.) The default or pre-loaded jumpers are shown in Figure 3.
Table 3. Si57x-EVB Jumpers
Reference Configuration
Designation
Signals
J1
1X2
Bypasses U3 level translator.
Connects signal MCU_SDA to signal
57x_SDA.
J2
1X2
Bypasses U3 level translator.
Connects signal MCU_SCL to signal
57x_SCL.
J3
1X2
Disables OE active low signal. See "1.7.
Si57x/598/599 Digital Control Signals" on
page 8.
J6
1X3
Selects voltage regulator output supplying
DUT_VDD. See "1.2. Power Supply" on
page 3 and Table 1 on page 3.
J7
1X2
Reset
J8
1X2
57x SDA test pins only.
J9
1X2
Disables OE active high signal. See “1.7.
Si57x/598/599 Digital Control Signals” .
J10
1X2
57x SCL test pins only.
J11
2X3
Disables U3 level translator.
Default (Pre-loaded)
Jumper Installation
Installed
Supports DUT_VDD = 2.5 or
3.3 V nominal.
Installed
Supports DUT_VDD = 2.5 or
3.3 V nominal.
Not installed
Installed in 3.3 V position.
Ready for MCU control.
(Default voltage selection is
1.8 V if no jumper is installed.)
Not installed
Not installed
Not installed
Not installed
Installed
Supports DUT_VDD = 2.5 or
3.3 V nominal.
6
Rev. 0.2