时钟芯片Si5347在进行抖动性能测试时，测试抖动指标超过文档提供的指标值，请问这是什么原因?

Base/blank prototyping device:Quad PLL Jitter Attenuator:8-outputs up to 800 MHz

Low-Jitter, Quad DSPLL, 8-Output, Any Frequency (<712.5MHz), Any Output, Jitter Attenuator

"Factory pre-programmedQuad PLL Jitter Attenuator:8-outputs up to 800 MHz"

Low-Jitter, Quad DSPLL, 8-Output, Any Frequency (<712.5MHz), Any Output, Jitter Attenuator

Low-Jitter, 4-Output, Any Frequency (<350MHz), Any Output, Jitter Attenuator

Factory pre-programmed

Base/blank prototyping device:

Low-Jitter, Dual DSPLL, 4-Output, Any Frequency (<350MHz), Any Output, Jitter Attenuator

Base/blank prototyping device:Single PLL Jitter Attenuator:10-outputs up to 800 MHz;

Low-Jitter, 4-Output, Any Frequency (<350MHz), Any Output, Jitter Attenuator

Factory pre-programmed: Single PLL Jitter Attenuator: 2-outputs up to 350 MHz; Integer only synthesis

Factory pre-programmed:Single PLL Jitter Attenuator:10-outputs up to 350 MHz;

Factory pre-programmed:Single PLL Jitter Attenuator:4-outputs up to 350 MHz;

Factory pre-programmed:Clock Generator:4-outputs up to 350 MHz;

Base/blank prototyping device:Single PLL Jitter Attenuator:4-outputs up to 800 MHz;Integer+Fractional synthesis

Base blank prototyping device: Clock Generator:10-outputs up to 350 MHz;Integer+Fractional synthesis

Low-Jitter, 10-Output, Any Frequency (<1028MHz), Any Output, Jitter Attenuator

Base/blank prototyping device:Single PLL Jitter Attenuator:2-outputs up to 800 MHz;

Factory pre-programmed:Clock Generator:10-outputs up to 350 MHz;Integer+Fractional synthesis

Base/blank prototyping device:

Factory pre-programmed: Clock Generator: 10-outputs up to 350 MHz; Integer+Fractional synthesis

Factory pre-programmed:Single PLL Jitter Attenuator:4-outputs up to 350 MHz;Integer+Fractional synthesis

评估板

The Si5345-EVB is used for evaluating the Si5345Any-Frequency, Any-Output, Jitter-Attenuating ClockMultiplier.

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Si5347 Evaluation Board for Quad PLL Jitter attenuator. Si5347评估板

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Si5341 Evaluation Board for Clock Generator with 10-outputs. Si5341评估板

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Si5345 Evaluation Board for 1-PLL Jitter attenuator with 10-outputs. Si5345评估板

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Si5341 Evaluation Board for Clock Generator with 10-outputs. Si5341评估板

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Si5346 Evaluation Board for Dual PLL Jitter attenuator. Si5346评估板

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Si5344H and Si5342H Coherent Optical Clock Evaluation Board. Si5344H and Si5342H评估板

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Si5344 Evaluation Board for 1-PLL Jitter attenuator with 4-outputs. Si5344评估板

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The Si5347-EVB is used for evaluating the Si5347Quad Any-Frequency Jitter Attenuating Clock Multiplier.. SI5347 评估板

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The Silicon Labs SiOCXO1-EVB (kit) is used to help evaluate Silicon Labs PrecisionJitter Attenuation/Frequency Translation product line for Stratum 3/3E, IEEE 1588 andG.8262 SyncE applications.. SI5383B,53SI5348A,SI5348B评估板

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Si5342 Evaluation Board for 1-PLL Jitter attenuator with 2-outputs. Si5342评估板

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NCD需报废物料，待报废后立刻失效. SI5340评估板

Low-Jitter, 4-Output, Any Frequency (<350MHz), Any Output, Jitter Attenuator

Blank protoyping device: Coherent Optical Jitter Attenuator Clock 4-outputs <2.7GHz

Factory pre-programmed:Single PLL Jitter Attenuator:4-outputs up to 350 MHz;

Base/blank prototyping device:Single PLL Jitter Attenuator:10-outputs up to 350 MHz;

Factory pre-programmed:Single PLL Jitter Attenuator:10-outputs up to 800 MHz;Integer+Fractional synthesis

Factory pre-programmed:Single PLL Jitter Attenuator:10-outputs up to 350 MHz;

Base/blank prototyping device:SyncE/1588/Stratum 3/3E Network Synchronizer:5-inputs/7-outputs up to 350 MHz

10-Output Low Jitter Any-Frequency Clock Generator

Factory pre-programmed:Single PLL Jitter Attenuator:10-outputs up to 800 MHz;

Factory pre-programmed: Coherent Optical Jitter Attenuator Clock 4-outputs <2.7GHz

"Factory pre-programmed: Triple-DSPLL SyncE/1588/Stratum 3/3E Network Synchronizer with 1PPS out, 7 outputs up to 718.5 MHz"

Single PLL Jitter Attenuator 10-outputs up to 800 MHz Integer+Fractional synthesis

Factory pre-programmed:Single PLL Jitter Attenuator:4-outputs up to 350 MHz;Integer+Fractional synthesis

Factory pre-programmed: Coherent Optical Jitter Attenuator Clock 2-outputs <2.7GHz

Base blank prototyping device: Single PLL Jitter Attenuator:4-outputs up to 800 MHz;Integer+Fractional synthesis

Blank protoyping device: Coherent Optical Jitter Attenuator Clock 4-outputs <2.7GHz

Base/blank prototyping device:Single PLL Jitter Attenuator:10-outputs up to 350 MHz;

"Factory pre-programmed: Triple-DSPLL SyncE/1588/Stratum 3/3E Network Synchronizer with 1PPS out, 7 outputs up to 350 MHz"

Factory pre-programmed: Single PLL Jitter Attenuator: 2-outputs up to 350 MHz; Integer only synthesis

Blank protoyping device: Coherent Optical Jitter Attenuator Clock 2-outputs <2.7GHz

Factory pre-programmed,SyncE/1588/Stratum 3/3E ,Network Synchronizer:,5-inputs/7-outputs up to 350 MHz

Factory pre-programmed: Coherent Optical Jitter Attenuator Clock 4-outputs <2.7GHz

Factory pre-programmed:Clock Generator:4-outputs up to 350 MHz;Integer+Fractional synthesis

Base/blank prototyping device:Single PLL Jitter Attenuator:2-outputs up to 800 MHz;

Base/blank prototyping device:Single PLL Jitter Attenuator:10-outputs up to 800 MHz;

Base/blank prototyping device:Single PLL Jitter Attenuator:2-outputs up to 350 MHz;

Factory pre-programmed:Clock Generator:4-outputs up to 350 MHz;Integer+Fractional synthesis

Low-Jitter, 10-Output, Any Frequency (<350MHz), Any Output, Jitter Attenuator

"Factory pre-programmed: Triple-DSPLL SyncE/1588/Stratum 3/3E Network Synchronizer with 1PPS out, 7 outputs up to 350 MHz"

Base/blank prototyping device: SyncE/1588/Stratum 3/3E

Low-Jitter, 10-Output, Any Frequency (<1028MHz), Any Output, Jitter Attenuator

Low-Jitter, 2-Output, Any Frequency (<1028MHz), Any Output, Jitter Attenuator

评估板

Si5348 Evaluation Board for SyncE/1588 and Stratum3 Network Synchronizers. Si5348评估板

"Factory pre-programmed: Triple-DSPLL SyncE/1588/Stratum 3/3E Network Synchronizer with 1PPS out, 7 outputs up to 718.5 MHz"

Base/blank prototyping device: SyncE/1588/Stratum 3/3E

Factory pre-programmed:Clock Generator:10-outputs up to 350 MHz;Integer+Fractional synthesis

Low-Jitter, Dual DSPLL, 4-Output, Any Frequency (<712.5MHz), Any Output, Jitter Attenuator

Low-Jitter, 2-Output, Any Frequency (<350MHz), Any Output, Jitter Attenuator

Factory pre-programmed:Single PLL Jitter Attenuator:2-outputs up to 350 MHz;Integer only synthesis(Avail End of July)

Factory pre-programmed:Clock Generator:4-outputs up to 350 MHz;Integer+Fractional synthesis

Low-Jitter, 10-Output, Any Frequency (<350MHz), Any Output, Jitter Attenuator

Factory pre-programmed: Clock Generator: 10-outputs up to 350 MHz; Integer+Fractional synthesis

Base/blank prototyping device:Single PLL Jitter Attenuator:4-outputs up to 800 MHz;

Base/blank prototyping device:Clock Generator:4-outputs up to 800 MHz;Integer+Fractional synthesis

Base/blank prototyping device:

Factory pre-programmed:Clock Generator:10-outputs up to 350 MHz;Integer only synthesis

Base blank prototyping device:Clock Generator:10-outputs up to 350 MHz;Integer+Fractional synthesis

Base blank prototyping device: Single PLL Jitter Attenuator:4-outputs up to 800 MHz;Integer+Fractional synthesis

Factory pre-programmed: Single PLL Jitter Attenuator:2-outputs up to 800 MHz;Integer+Fractional synthesis

Low-Jitter, Dual DSPLL, 4-Output, Any Frequency (<712.5MHz), Any Output, Jitter Attenuator

"Factory pre-programmedDUAL PLL Jitter Attenuator:4-outputs up to 800 MHz"

Factory pre-programmed,SyncE/1588/Stratum 3/3E ,Network Synchronizer:,5-inputs/7-outputs up to 350 MHz

Factory pre-programmed: Single PLL Jitter Attenuator:2-outputs up to 800 MHz;Integer+Fractional synthesis

Low-Jitter, 2-Output, Any Frequency (<350MHz), Any Output, Jitter Attenuator

Blank protoyping device: Coherent Optical Jitter Attenuator Clock 2-outputs <2.7GHz

Base/blank prototyping device:

Base/blank prototyping device:SyncE/1588/Stratum 3/3E Network Synchronizer:5-inputs/7-outputs up to 350 MHz

Low-Jitter, Dual DSPLL, 4-Output, Any Frequency (<350MHz), Any Output, Jitter Attenuator

Base/blank prototyping device:

Base/blank prototyping device:Clock Generator:4-outputs up to 800 MHz;Integer+Fractional synthesis

Factory pre-programmed:Single PLL Jitter Attenuator:10-outputs up to 350 MHz;

Factory pre-programmed:Clock Generator:10-outputs up to 350 MHz;Integer only synthesis

Factory pre-programmed:Clock Generator:4-outputs up to 350 MHz;Integer+Fractional synthesis

10-Output Low Jitter Any-Frequency Clock Generator

Factory pre-programmed: Coherent Optical Jitter Attenuator Clock 2-outputs <2.7GHz

"Factory pre-programmed:Single PLL Jitter Attenuator:2-outputs up to 350 MHz;Integer only synthesis"