8

©2016 Integrated Device Technology, Inc

Revision E, August 18, 2016

8413S12B Datasheet.

Table 6. Input Frequency Characteristics, VDD = 3.3V ± 5%, VDDO_[A:E] = VDDO_F = 3.3V ± 5%; or

VDD = 3.3V ± 5%, VDDO_G = VDDO_QREF = 3.3V ± 5% or 2.5V ± 5%, TA = -40°C to 85°C

AC Electrical Characteristics

Table 7A. PCI Express Jitter Specifications, VDD = 3.3V ± 5%, VDDO_[A:E] = 3.3V ± 5%; and VDD = 3.3V ± 5%, VDDO_G =

VDDO_QREF = 3.3V ± 5%, TA = -40°C to 85°C

NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when the device

is mounted in a test socket with maintained transverse airflow greater than 500 lfpm. The device will meet specifications after thermal

equilibrium has been reached under these conditions. For additional information, refer to the PCI Express Application Note section in the

datasheet.

NOTE 1: Peak-to-Peak jitter after applying system transfer function for the Common Clock Architecture. Maximum limit for PCI Express Gen

1 is 86ps peak-to-peak for a sample size of 106 clock periods.

NOTE 2: RMS jitter after applying the two evaluation bands to the two transfer functions defined in the Common Clock Architecture and

reporting the worst case results for each evaluation band. Maximum limit for PCI Express Generation 2 is 3.1ps RMS for tREFCLK_HF_RMS

(High Band) and 3.0ps RMS for tREFCLK_LF_RMS (Low Band).

NOTE 3: RMS jitter after applying system transfer function for the common clock architecture. This specification is based on the PCI Express

Base Specification Revision 0.7, October 2009 and is subject to change pending the final release version of the specification.

NOTE 4: This parameter is guaranteed by characterization. Not tested in production.

Table 7B. Serial Rapid IO Switch Jitter Specification, VDD = 3.3V ± 5%, VDDO_[A:E] = 3.3V ± 5%; and VDD = 3.3V ± 5%,

VDDO_G = VDDO_QREF = 3.3V ± 5%, TA = -40°C to 85°C

NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when the device

is mounted in a test socket with maintained transverse airflow greater than 500 lfpm. The device will meet specifications after thermal

equilibrium has been reached under these conditions. For additional information, refer to the Serial Rapid IO Application Note section in the

datasheet.

NOTE 1: Total phase jitter after applying the evaluation bands to the system transfer function for the IDT sRIO Tsi57x and Tsi620 Product

Families. The transfer function is defined and illustrated in the Serial Rapid IO Application Note section in the datasheet and the IDT hardware

manual of the Tsi57x and Tsi620. Total RMS phase jitter allowed on the reference clock of the Tsi57x and Tsi620 is specified at 3ps (max).

NOTE 2: Evaluation band with sRIO mask applied: 10Hz - 40MHz.

NOTE 3: Total phase jitter includes random and deterministic jitter.

NOTE 4: Jitter data is measured with Agilent E5052A Signal Source Analyzer.

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

FIN

Input

Frequency

CLK, nCLK

25

MHz

XTAL_IN, XTAL_OUT

25

MHz

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

PCIe Industry

Specification

Units

tj

(PCIe Gen 1)

Phase Jitter

Peak-to-Peak;

NOTE 1, 4

ƒ = 100MHz, 25MHz Crystal Input

Evaluation Band: 0Hz - Nyquist

(clock frequency/2)

14.27

24.35

86

ps

tREFCLK_HF_R

MS

(PCIe Gen 2)

Phase Jitter RMS;

NOTE 2, 4

ƒ = 100MHz, 25MHz Crystal Input

High Band: 1.5MHz - Nyquist

(clock frequency/2)

1.47

3.04

3.10

ps

tREFCLK_LF_R

MS

(PCIe Gen 2)

Phase Jitter RMS;

NOTE 2, 4

ƒ = 100MHz, 25MHz Crystal Input

Low Band: 10kHz - 1.5MHz

0.17

0.67

3.0

ps

tREFCLK_RMS

(PCIe Gen 3)

Phase Jitter RMS;

NOTE 3, 4

ƒ = 100MHz, 25MHz Crystal Input

Evaluation Band: 0Hz - Nyquist

(clock frequency/2)

0.37

0.79

0.8

ps

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

IDT sRIO

Specification

Units

JCLK_REF

Total Phase Jitter, RMS;

NOTE 1, 2, 3, 4

ƒ = 125MHz, 25MHz Crystal

Input, HCSL Output Clocks

0.64

1.55

3

ps