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CITS500s4
CITS500s (Limited availability) |
| CITS500s/s4 Brochure |
| Accessories / Consumables and Spare Parts |
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| As
a PCB manufacturer, you are almost certainly now
producing controlled impedance PCBs for your customers -
it is estimated that within a few years these types of
boards may account for some 70% of the market. But how do
you verify the PCBs' characteristics, control your
production process and demonstrate quality conformance to
your customers?
CITS500s4 - 4 Channels CITS500s - 2 Channels Polar produces a comprehensive range of special impedance-matching microstrip probes, including the IPD-100 differential model shown here. An innovative variable pitch model, known as the IP-50V, is also available. Instantly adjustable to any pitch from 0.1 to 0.3 inches, the IP-50V is ideal for PCB manufacturers handling a mix of boards, with different signal-to-ground conductor spacings. |
Important
information: CITS500s and CITS500s4 are now replaced by:
CITS800s2 CITS800s4 and CITS800s8 CITS500s4
is designed for medium volume fabricators with a high mix of single
ended and differential impedance controlled PCB production
Controlled impedance PCBs are used across a broad range of applications to help ensure high frequency signal integrity. Designers invariably specify these types of PCBs whenever the edge speeds of digital signals are faster than 1ns, or analog signals climb above 300MHz. The characteristic impedance of a PCB trace is determined by the dimensions of the trace and the properties of the PCB material - which can vary from batch to batch. To control trace impedance, PCB manufacturers usually vary trace width to compensate for different batches of PCB material. Historically, they were then forced to use specialist laboratory equipment, such as a time domain reflectometer (TDR), to measure the characteristics of a representative trace etched on the board or a test coupon. This approach was complex, expensive, and far from ideal in a production environment. Many electronics designers - especially those pushing performance boundaries in the defense/aerospace, communications and IT industries - are now taking controlled impedance PCBs a stage further, by using differential signals and balanced traces to improve noise immunity and reduce timing errors on very high speed interconnects. For PCB manufacturers serving these rapidly-growing electronics sectors, verifying the differential impedance of these balanced traces has proved exceptionally difficult, or even impossible. Until now. The definitive test solution Polar's CITS provides the definitive test solution for controlled impedance PCBs. This innovative system is designed specifically for use in PCB production environments, and is extremely simple to operate. Controlled by advanced PC-based software, the CITS uses TDR techniques to measure the reflection of fast rise-time pulses, and provides a graphical view of a conductor's characteristic impedance along its length. The system provides you with the ideal means of easily and accurately verifying the impedance attributes of PCBs - including propagation delay and the differential impedance of balanced traces. |
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Exceptional ease of use CITS impedance test systems are exceptionally easy to use. Powerful Windows-based software automates every aspect of testing, enabling the entire process to be controlled by a single click of a mouse or footswitch. You simply position the microstrip probes, select a test file containing the normal PCB test impedance and tolerance, and press the footswitch. There is no requirement to perform any of the adjustments that are conventionally associated with complex TDR measurements, such as setting-up vertical gains, pulse time delays and timebase values. For maximum throughput, the CITS can execute a series of impedance tests automatically, prompting you to reposition the probes as appropriate. Test results are unequivocal - the CITS automatically processes the data to produce an unambiguous display of characteristic impedance vs distance, and provides clear visual indication of pass/fail status. Automatic datalogging enables test results - together with system set-up data and measurement criteria - to be easily exported to a wide variety of third-party database or spreadsheet packages for real-time statistical process control. The pass/fail status of each test is also made available via opto-isolated signals on the instrument's rear panel, facilitating integration with other factory automation equipment. Flexible test control Despite the CITS simplicity of operation, test accuracy and flexibility have not been sacrificed. The instrument has traceable measurement accuracy. Furthermore, QA specialists still have the freedom to specify complex measurement parameters such as velocity of propagation and loss compensation, as well as standard test functions like pass/fail limits, result handling and data logging. You can print test
results to provide conformance reports for your
customers, store the data on disk for archive purposes or
future analysis, or export it for real-time SPC purposes.
An optional macro report generator accommodates a wide
variety of standard forms, for simplicity of reporting. A
barcode reader is also available as an option, which
enables PCB identification labels to be scanned-in during
the test process, reducing handling time and eliminating
error. Design and process control When considering starting impedance controlled production you will also find the Polar Si8000m controlled impedance design system helps you tailor your customers designs to your production process. It is also ideal in helping your front end team to optimise the incoming data for maximum controlled impedance yield. Working with both CITS and Si8000m will give you a complete solution for impedance test and process control.
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Designed for PCB production
environments
Ideal for CEM
inwards inspection
Measures
PCBs and test coupons
Automatic datalogging