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Si52147-EVB

Rev. 0.1

3

SSON

I

SSON Input, 3.3 V-Tolerant Active Input for Spread selection on the Output. 

Internal 100 k

 pulldown. 

1 = –0.5% Spread enabled, 0 = Spread disabled.

SDATA

I/O

SMBus-Compatible SDATA

.

SCLK

I

SMBus-Compatible SCLOCK

.

Table 2. Spread Selection

SSON

Frequency

(MHz)

Spread

(%)

Note

0

100.00

OFF

Default Value for SSON=0

1

100.00

–0.5

Table 1. Input Jumper Settings (Continued)

Summary of Contents for Si52147

Page 1: ... conjunction with the Si52147 device and data sheet for the following tests PCIe Gen1 Gen2 Gen3 compliancy Power consumption test Jitter performance Testing out I2 C code for signal tuning In system validation where SMA connectors are present Si52147 DIFF5 connection for application DIFF4 connection for application DIFF2 connection for application VDD 3 3 V power supply GND SDATA GND SCLK DIFF1 co...

Page 2: ...IFF6 DIFF7 DIFF8 enabled 0 DIFF6 DIFF7 DIFF8 disabled CLKPWGD PD I 3 3 V LVTTL Input After CLKPWGD active high assertion this pin becomes a real time input for asserting power down active low I2C connect For I2C read and write In sequence SData Gnd SCLK from left to right 3 3 V Power Supply VDD Connectors DIFF6 Differential output DIFF1 Differential output DIFF2 Differential output DIFF3 Different...

Page 3: ...n on the Output Internal 100 k pulldown 1 0 5 Spread enabled 0 Spread disabled SDATA I O SMBus Compatible SDATA SCLK I SMBus Compatible SCLOCK Table 2 Spread Selection SSON Frequency MHz Spread Note 0 100 00 OFF Default Value for SSON 0 1 100 00 0 5 Table 1 Input Jumper Settings Continued ...

Page 4: ...ential outputs with a saw tooth spread profile When the SSON is low spread profile is disabled 1 1 2 OE 0 8 Input The output enable pins can change on the fly when the device is on Deasserting valid low results in corresponding DIFF output to be stopped after their next transition with final state low low Asserting valid high results in corresponding output that was stopped are to resume normal op...

Page 5: ...1uF U1 Si52147 VDD_PCI 1 VDD_PLL3 2 OE0 3 OE1 4 SSON 5 VSS_PLL3 6 VSS_PLL4 7 OE2 8 OE3 9 OE4 5 10 OE6 8 11 VDD_PLL4 12 VDD_PLL2 13 SRC0 14 SRC0 15 VSS_PLL2 16 SRC1 17 SRC1 18 SRC2 19 SRC2 20 SRC3 21 SRC3 22 SRC4 25 SRC4 26 VSS_SRC 24 VDD_SRC 23 SRC5 27 SRC5 28 VSS_PLL1 29 SRC6 30 SRC6 31 SRC7 32 SRC7 33 VDD_PLL1 34 SRC8 35 SRC8 36 SCLK 37 SDATA 38 CKPWRGD_PDB 39 VDD_REF 40 XOUT 41 XIN CLKIN 42 NC_...

Page 6: ... L1 SHOULD BE SHORT AS POSSIBLE L1 SHOULD BE SHORT AS POSSIBLE L1 SHOULD BE SHORT AS POSSIBLE L1 SHOULD BE SHORT AS POSSIBLE DUTGND DUTGND DUTGND DUTGND DUTGND DUTGND DUTGND DUTGND DUTGND DUTGND DUTGND DUTGND DUTGND L1 SHOULD BE SHORT AS POSSIBLE L1 SHOULD BE SHORT AS POSSIBLE DUTGND DUTGND DUTGND DUTGND DUTGND DUTGND DUTGND L1 SHOULD BE SHORT AS POSSIBLE L1 SHOULD BE SHORT AS POSSIBLE DUTGND DUTG...

Page 7: ...Si52147 EVB Rev 0 1 7 NOTES ...

Page 8: ...th which if it fails can be reasonably expected to result in significant personal injury or death Silicon Laboratories products are generally not intended for military applications Silicon Laboratories products shall under no circumstances be used in weapons of mass destruction including but not limited to nuclear biological or chemical weapons or missiles capable of delivering such weapons Tradem...

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