HW-FMC-XM101-G Xilinx Inc, HW-FMC-XM101-G Datasheet - Page 20

• Manufacturer Part Number: HW-FMC-XM101-G
• Description: HARDWARE FMC INTERFACE CARD
• Manufacturer: Xilinx Inc

Specifications of HW-FMC-XM101-G

• Accessory Type: Interface Card
• For Use With/related Products: Spartan 6
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Chapter 1: XM101
20
4. Silicon Labs Si570 Clock Sources
The Silicon Labs Si570 serial IIC bus programmable clock source provides a low-jitter clock
with a user-programmable output frequency from 10 to 810 MHz.
U1 and U2 Si570 are located at IIC address 0x5D and are accessed through the U4 PCA9543
IIC bus switch as described in
U1 and U2 Si570 components are factory programmed with parameters in
Table 1-11: Characteristics of Si570 Component
For additional information on this component, including reprogramming the clock
frequency through the IIC serial bus interface, consult the manufacturer's data sheet at:
www.silabs.com.
The U1 and U2 Si570 output clocks to J1 FMC HPC connections are shown in
Table 1-12: Si570 to FMC HPC Connections
Six-Digit Startup Frequency
CLK0_M2C_N
CLK2_M2C_N
CLK0_M2C_P
CLK2_M2C_P
Output Enable Polarity
Net Name
Si570 Characteristic
Temperature Stability
Frequency Range
Output Format
Power Supply
IIC Address
Si570
Pin Number
U1.4
U1.5
U2.4
U2.5
www.xilinx.com
3. PCA9543 IIC Bus
156.250 MHz
10–810 MHz
Pin Number
Connector
50 ppm
XM101
LVDS
J1 FMC
High
3.3V
x5D
H4
H5
K4
K5
Switch.
UG538 (v1.1) September 24, 2010
FMC XM101 User Guide
Table
Table
1-11.
1-12.