SI5347-EVB Datasheet, PDF (2/21 Pages) Silicon Laboratories – Powered from USB port or external

Si5347-EVB
1. Si5347-EVB Functional Block Diagram
Below is a functional block diagram of the Si5347-EVB. This EVB can be connected to a PC via the main USB
connector for programming, control, and monitoring. See section “3. Quick Start” for more information.
Main USB
Connector
Aux USB
Connector
Ext +5V
Connector
Power only
Power only
+5V_USB
+5V_Aux
Power Supply
+5V_Ext
VDDMCU
I2C/SPI Bus
C8051F380
MCU
+
Peripherals
{ ^{Optional External}
XAXB Ref Input
{ ^{Input Clock 0}
{ ^{Input Clock 1}
{ ^{Input Clock 2}
{ ^{Input Clock 3}
XAXB
Crystal / Term
Input
Termination
Input
Termination
Input
Termination
Input
Termination
I2C/SPI Bus
DSPLL_SEL1
DSPLL_SEL0
OE_0
OE_0
FINC
FDEC
INTR
Alarm_Status
XA
XB
CLKIN_0
CLKIN_0B
CLKIN_1
CLKIN_1B
CLKIN_2
CLKIN_2B
CLKIN_3
CLKIN_3B
Si5347
CLKOUT_0
CLKOUT_0B
CLKOUT_1
CLKOUT_1B
CLKOUT_2
CLKOUT_2B
CLKOUT_3
CLKOUT_3B
CLKOUT_4
CLKOUT_4B
CLKOUT_5
CLKOUT_5B
CLKOUT_6
CLKOUT_6B
CLKOUT_7
CLKOUT_7B
Output
Termination
Output
Termination
Output
Termination
Output
Termination
Output
Termination
Output
Termination
Output
Termination
Output
Termination
Figure 2. Si5347-EVB Functional Block Diagram
} ^{Output Clock 0}
} ^{Output Clock 1}
} ^{Output Clock 2}
} ^{Output Clock 3}
} ^{Output Clock 4}
} ^{Output Clock 5}
} ^{Output Clock 6}
} ^{Output Clock 7}
2
Rev. 1.1