introducing atlas 2014 pcb insertion loss test system april 2014 v14:04 copyright © polar...

Introducing Atlas 2014PCB Insertion loss test systemApril 2014 V14:04

Copyright © Polar Instruments 2014

2

New Features


Featuring support for SPP, SET2SEIL & SET2DIL

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New Features


Atlas 2014 Introduces:

• Support for SPP testing

• Integrated environment for SPP / SET2DIL / ImpedanceShortens training time.

• Built in multiple waveform view

• Support for 20GHz, 30GHz and 50GHz sampling modules

• New ergonomic ESD safe probe housings for SET2DIL test

• Snapshot – for archiving and recreation of test results

• Compliant with IPC-TM-650 2.5.5.12

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New Features


Support for SPP insertion loss measurement technique

Integrated waveform view display – allows user to drill down for more detailed waveform analysis.

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New Features


Drill down view

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New Features


SPP Impedance pre screening

Built in waveform view allows user display expanded view at any time.

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New Features


SPP Impedance pre screening

SPP Pre-screening from 14:04 on supports Launch Point Extrapolation.

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New Features


New cursor function dynamic readout

New cursor function provides linked readout of all active displayed results.

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New Features


New cursor function dynamic readout

Cursor readout of all trace values, limits and Launch Point Extrapolation.

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New Features


SPP Test from / Test to – autoset limits

Test from / test to limits auto set in SPP mode.

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New Features


Atlas SPP:

• An SPP test comprises:

• A series of thorough impedance pre-screening tests

• (Test for line taper / impedance imbalance)

• Above tests performed on both a long and short line in both forward and backward directions.

• Followed by:

• Alpha (loss) / Beta (phase) tests / Calculation of Effective Er

• Compliant with IPC-TM-650 2.5.5.12

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New Features


Atlas SPP:

• The following sequence of screens step through a typical SPP test:

• Pre-screening – Waveform windowing – Alpha (loss) and Beta (phase) measurements.

• The very first slide of the sequence explains the coupon layout and typical connectors used.

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New Features


Typical SPP coupon connectors and terminology

Short line forward connectors.

Legend denoting length and impedance of short line. in this case 4cm (40mm) and 85 Ohms differential.

Short line backward connectors.

Long line backward connectors.

Long line forward connectors.

All connectors typically Molex surface mount SMA. Each connector fitted to the board with screws sized to the thickness of the coupon

Legend denoting length and impedance of long line. in this case 11cm (110mm) and 85 Ohms differential.

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New Features


Step 1 Pre screen impedance long line forward direction

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New Features


Step 2 Pre screen impedance long line backward

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New Features


Step 3 Pre screen impedance short line forward

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New Features


Step 4 Pre screen impedance short line backward

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New Features


Step 5 SPP test long line

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New Features


Step 6 SPP test short line

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New Features


Processed result screen

Click on any individual result for detail view

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New Features


Pre-Screen Z differential impedance test

Differential impedance measured forward / backward and delta impedance test

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New Features


Pre-Screen Odd impedance

Short & long line odd impedance and balance test

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New Features


Even signal impedance pre screen

Even signal impedance and balance test

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New Features


Pre-Screen one side of line pair (single ended)

Single ended pre-screen of one side of differential pair.

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New Features


Pre-Screen second side of line pair (single ended)

Single ended pre-screen of second side of differential pair. Note cursor display with link to graph series and test limits.

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New Features


Raw Time domain transmission impulse waveforms

Raw and unprocessed impulse waveforms as uploaded from the sampling oscilloscope prior to mathematical conditioning for FFT processing. Note the reduction in impulse height on the long line impulse owing to signal losses. Hence the name “Short pulse propagation”

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New Features


Windowed TDT Impulse response display

Mathematically processed TDT waveform data per IPC-TM-650 prior to FFT extraction of loss and phase information.

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New Features


Spectra display

The spectra display is an indication of how much energy remains in the short and long line at any given frequency. The upper frequency of the measurement is limited by the signal power being large enough compared to the noise in the system for the math to “dig out” the ratio of power in the long line to that in the short line..

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New Features


Alpha (insertion loss display)

Alpha* is the measured insertion loss. This is similar to the “loss” graph seen on the Polar Si9000e. SPP denotes loss in dB/cm (10mm). Pass fail criteria are set in the test editor according to the limits laid down by the OEM. (*Alpha is the attenuation of the transmission line when driven and terminated by a matched load)

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New Features


Beta (phase shift in Radians per cm)

Beta* (the phase shift) displays the phase shift of the transmission line (in Radians per 10mm). Phase angle increases with frequency and is directly related to propagation velocity (Vp = C/Sq root effective Er). Phase display is “unwrapped” displaying the constant increase in phase angle. (In the Si9000e you will see phase displayed in a “wrapped” sawtooth format which is a convenient way of displaying an ever increasing angle on a graph scale). As with Alpha, Beta denotes the phase shift of the line when driven and terminated with a matched impedance.

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New Features


Effective dielectric constant

The ability to extract the phase along with an accurate knowledge of the line length gives the ability to calculate the effective dielectric constant at any given frequency. This result shows the typical characteristic of PCB laminates with a higher Er at low frequencies – gently sloping to a much smaller reduction in effective Er as the frequency rises.

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New Features


Atlas SPP:

• The previous sequence has walked you through the testing process for SPP

• The following two slides show how simple it is to setup an SPP test with Atlas 2014.

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New Features


SPP Pretest setup

Simple yet flexible configuration for SPP test and pretest.

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New Features


SPP Pretest setup

Autoset Test From / Test To.

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New Features


SPP insertion loss setup

Auto line fit for Alpha regression – new from 14:04.

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New Features


Atlas 2014 Featuring support for SPP SET2SEIL & SET2DIL

Impulse forming networks for SPP test..

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New Features


Ergonomic ESD safe probe housing for SET2DIL GGB probe

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New Features


Atlas test snapshot facility

Tests may be saved and archived as “Snapshot files” complete with full waveform data. Snapshots may be recovered at any time for future reference.

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New Features


Atlas 800 SET2DIL & SPP Protection unit

Intelligent protection of sampling heads in the production environment

Active management of probe discharge state and connectivity.

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New Features


Sample SPP & SET2DIL deskew package

Set of 5 “known good” SET2DIL coupons for initial SET2DIL deskew

Sample SPP coupon.

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New Features


Supporting product for insertion loss:

• Si9000e

• Speedstack Si

• CGen SiSupports SET2DIL & SPP coupons

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New Features


Atlas 2014

Supporting:

• SPP

• SET2SEIL

• Bidirectional SET2DIL

• Impedance

• Compatible with Tektronix DSA8300 / DSA8200 / TDS8000and 20GHz, 30GHz or 50GHz TDR sampling heads.

• Operates under XP / Windows 7 / Windows 8

Thank you


For more information:

Contact Polar now: Phone

USA / Canada / MexicoKen Taylor ( 503) 356 5270

Asia / PacificTerence Chew +65 6873 7470

[email protected] +81 45 339 0155

UK / EuropeNeil Chamberlain +44 23 9226 9113

Germany / Austria / Switzerland Hermann Reischer +43 7666 20041-0

www.polarinstruments.com


introducing atlas 2014 pcb insertion loss test system april 2014 v14:04 copyright © polar...

Documents

view slide

typical spp test

atlas spp

spp set2dil impedance

impedance of long line

impedance of short line

spp mode

set2seil set2dil slide