SI535X-20QFN-EVB Datasheet, PDF (1/14 Pages) Silicon Laboratories – Fully-powered from a single USB port

Si535x-20QFN-EVB
Si5350/51 20-QFN EVALUATION BOARD USER’S GUIDE
Description
Features
The Si535x-20QFN-EVB is used for evaluating the
Si5350/51 any-frequency, <125 MHz CMOS clock
generator + VCXO.
 Fully-powered from a single USB port
 Onboard 27 MHz crystal for asynchronous operation
 SMA and test point hook for interfacing to an
external clock reference
 Jumper-selectable VDD and VDDOx allows device
to operate at 2.5 or 3.3 V
 Voltage supply jumpers provide easy access for use
with external supplies
Functional Block Diagram
Vreg*
Jumper Selectable Vreg
(2.5V / 3.3V)
VRVReVgreegg*
VReg
XTAL
VDD
CLKIN _Si5350/51
I2C
VDDO0
CLK0
CLK1
VDDO1
CLK2
CLK3
VDDO2
CLK4
CLK5
VDDO3
CLK6
CLK7
USB
Connector
Rev. 0.1 10/10
MCU
Status
LEDs
Reset
Switch
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Si535x-20QFN-EVB