SI5315-EVB Silicon Laboratories Inc, SI5315-EVB Datasheet - Page 43

• Manufacturer Part Number: SI5315-EVB
• Description: BOARD EVAL SI5315 8KHZ-644.53MHZ
• Manufacturer: Silicon Laboratories Inc

Specifications of SI5315-EVB

• Main Purpose: Timing, Clock Multiplier
• Embedded: No
• Utilized Ic / Part: SI5315
• Primary Attributes: 2 Inputs, 2 Outputs
• Secondary Attributes: CML, CMOS, LVDS, LVPECL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

6.1.2. Reference Jitter
Jitter on the reference input has a roughly one-to-one transfer function to the output jitter over the bandwidth
ranging from 100 Hz up to 30 kHz. If a crystal is used on the XA/XB pins, the reference will have low jitter if a
suitable crystal is in use. If the XA/XB pins are connected to an external reference oscillator, the jitter of the
external reference oscillator may contribute significantly to the output jitter.
A typical reference input-to-output jitter transfer function is shown in Figure 20.
-10
-15
-20
-25
-30
-5
5
0
1
Figure 20. Typical XA/XB Reference Jitter Transfer Function
10
Jitter Transfer XA/XB Reference to CKOUT
40 MHz Clock on XA/XB, XTAL/Clock=M
100
Jitter Frequency (Hz)
Rev. 0.26
1000
10000
100000
1000000
Si5315
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