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Tektronix 82A04B 相位參考模塊

深圳市美佳特科技有限公司

82A04B 8000 系列，相位參考模塊（包括 D1）.

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he 82A04B Phase Reference Module extends the capability of the DSA8300 Digital Serial Analyzer sampling oscilloscope1by providing extremely low jitter/drift sample position information to the mainframe. This sample position information is based on the phase of a clock the user provides to the 82A04B input.

1Also compatible with DSA8200 and TDS/CSA8200 sampling oscilloscopes.

Notice to EU customers

This product is not updated to comply with the RoHS 2 Directive 2011/65/EU and will not be shipped to the EU. Customers may be able to purchase products from inventory that were placed on the EU market prior to July 22, 2017 until supplies are depleted. Tektronix is committed to helping you with your solution needs. Please contact your local sales representative for further assistance or to determine if alternative product(s) are available. Tektronix will continue service to the end of worldwide support life.

Key performance specifications

• Extremely low jitter RMS
• Wide and continuous frequency range 2 GHz - 60 GHz

Key features

• Flexible operation:
  • Triggered
  • Untriggered (Free-running) Acquisition Without Trigger Signal
• Support for enhanced acquisition modes (FrameScan®)
• Small module implementation allows:
  • Acquisition on six other channels
  • Placement close to the DUT with module extender cable
• Fast acquisition rate

Applications

• Design, verification, and manufacturing of computer, ecom, and datacom components and systems operating at 10 Gb/s and faster

Extremely low jitter solution

The benefits of the 82A04B using the sample position information based on a clock signal are two-fold - an extremely low jitter of RMS, and the possibility of a triggerless acquisition. The typical application is the acquisition and analysis of very high-speed optical and electrical signals in high-speed communication devices and systems and similar areas.

The 82A04B together with the DSA8300 implements the phase reference time-base functionality in a novel way, giving the user the freedom to select from time base and acquisition modes without compromises; any phase-reference frequency within the operating range is accommodated, and even the advanced features, such as FrameScan®, remain available.

Modes of operation

The operation of the phase reference module is based on the acquisition of a clock synchronous to the signal under observation. This clock can be a user-supplied signal (for example, a clock from a BERT), or the clock output of one of the DSA8300 clock recovery or optical modules.

• Phase Ref Free-Run - With no external trigger to the DSA8300 mainframe needed, the 82A04B module can, together with the mainframe, create a time base based on the phase of the reference clock (effectively the time base of the instrument functions as a "Phase-base" instead). The signal displayed on the screen will therefore repeat after one period of the reference clock. All user controls remain enabled, even while the horizontal position has relative meaning only. The timing information presented by the oscilloscope is based solely on the phase reference clock frequency as entered by the user in the Input Freq field of the Phase Reference Setup dialog.
• Phase Ref Triggered - By providing the phase reference clock to both the phase reference module and the Clock Input of the instrument, the DSA8300's Advanced Trigger feature (Option ADVTRIG) can acquire repetitive pattern data (as opposed to only eye diagrams or clock signals) with very low jitter.
• Characterize - To operate properly in either the Phase Ref Triggered or the Phase Ref Free-Run modes the Phase Reference module has to first characterize the phase reference signal. The signal must be stable during the characterization and afterward. The instrument indicates when characterization is necessary.