SI535X-B20QFN-EVB Datasheet, PDF (1/12 Pages) Silicon Laboratories – Fully-powered from a single USB port

Si535x-B20QFN-EVB
Si5350/51 20-QFN EVALUATION BOARD USER’S GUIDE
Description
Features
The Si535x-B20QFN-EVB is used for evaluating the
Si5350/51 any-frequency, 0.0025–200 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 1.8 (VDDO only), 2.5, or 3.3 V
 Voltage supply jumpers provide easy access for use
with external supplies
Functional Block Diagram
XTAL
CLKIN
VC
I2C
Vreg*
VRVReVgReVgreegg*
Jumper Selectable Vreg
1.8 V (VDDO only) / 2.5 V / 3.3 V
VDD
VDDO0
CLK0
CLK1
Si5350/51
VDDO1
CLK2
CLK3
VDDO2
CLK4
CLK5
VDDO3
CLK6
CLK7
USB
Connector
Rev. 0.3 7/15
MCU
Status
LEDs
Reset
Switch
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Si535x-B20QFN-EVB