SI5XX-PROG-EVB Datasheet, PDF (5/20 Pages) Silicon Laboratories – Windows-compatible software control and device programming

3. Functional Description
The Si5xx-PROG-EVB is the evaluation board assembly for the Si514/570/571/598/599 Any-Frequency I²C
Programmable XO/VCO. This evaluation board assembly provides access to all signals for programming and
operating the device. The Si5xx-PROG-EVB schematics, bill of materials, and PCB layouts are included as
sections 6, 7, and 8, respectively. Figure 2 provides a block diagram for the board.
J1
Optional
Power In
VCO In
1
2
3
J12
TP1
TP2
(EXT3P3V) (VBUS_5V)
TP10
Filter
TP6 TP7
(SCL) (SDA)
C8051F342
MCU
J20
J2
USB
TP3
(VDD_DUT)
VDD
REG
J5
4
3
2
1
Manual VDD
Voltage Select
4-3=2.5V
2-1=3.3V
1
OPEN=1.8V
2 3 J11
J17
2
1
Level
Translator
Level
Translator
J19
2
1
J13
3
2
1
J16
1
2
3
Output
Enable
TP4
1
SDA (VC)
8 _DUT
6
VDD
2
SCL (OE)
5
CLKP
3
GND
4
CLKN
7
Output
Conditioner
J14
CLKP
J18
CLKN
Figure 2. Si5xx-PROG-EVB Functional Block Diagram
Rev. 0.3
5