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Stanford Research Systems / SRS CG635

Stanford Research SRS CG635 /02 Synthesized Clock Generator. DC to 2.05 GHz with OCXO Oven Timebase -Option 02.
  • Stanford Research Systems / SRS CG635 for sale
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Datasheets

$2795.00 In Stock! 

Model: Stanford Research Systems / SRS CG635     Condition: Reconditioned

  • Clocks from 1 µHz to 2.05 GHz
  • Random jitter less than 1 ps rms
  • 16 digits of frequency resolution
  • 80 ps rise and fall times
  • CMOS, PECL, ECL, LVDS & RS-485
  • Phase control and time modulation
  • PRBS for eye-pattern testing
  • OCXO and rubidium timebase
Overview

The CG635 generates extremely stable square wave clocks between 1 µHz and 2.05 GHz. The instrument's high frequency resolution, low jitter, fast transition times, and flexible output levels make it ideal for use in the development and testing of virtually any digital component, system or network.

Clean clocks are critical in systems that use high-speed ADCs or DACs. Spurious clock modulation and jitter create artifacts and noise in acquired signals and in reconstructed waveforms.

CG635 Clock Generator

The CG635 generates extremely stable square wave clocks between 1 µHz and 2.05 GHz. The instrument's high frequency resolution, low jitter, fast transition times, and flexible output levels make it ideal for use in the development and testing of virtually any digital component, system or network.

Clean clocks are critical in systems that use high-speed ADCs or DACs. Spurious clock modulation and jitter create artifacts and noise in acquired signals and in reconstructed waveforms. Clean clocks are also important in communications systems and networks. Jitter, wander, or frequency offsets can lead to high bit error rates, or to a total loss of synchronization. The CG635 can provide the clean, stable clocks required for the most critical applications.

Output Drivers

The CG635 has several clock outputs. The front-panel Q and -Q outputs provide complementary square waves at standard logic levels (ECL, PECL, LVDS or +7 dBm). The square wave amplitude may also be set from 0.2 V to 1.0 V, with an offset between -2 V and +5 V. These outputs operate from DC to 2.05 GHz, have transition times of 80 ps, a source impedance of 50 Ω, and are intended to drive 50 Ω loads. Output levels double when these outputs are unterminated.

The front-panel CMOS output provides square waves at standard logic levels. The output may also be set to any amplitude from 0.5 V to 6.0 V. The CMOS output has transition times of less than 1 ns and operates up to 250 MHz. It has a 50 Ω source impedance and is intended to drive high impedance loads at the end of any length of 50 Ω coax cable.

A rear-panel RJ-45 connector provides differential square wave clocks on twisted pairs at RS-485 levels (up to 105 MHz) and LVDS levels (up to 2.05 GHz). This output also provides ±5 VDC power for optional line receivers (CG640 to CG649). The clock outputs have 100 Ω source impedances and are intended to drive shielded CAT-6 cable with 100 Ω terminations. The differential clocks may be used directly by the target system, or with optional line receivers that provide complementary logic outputs on SMA connectors.

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Stanford Research Systems / SRS CG635

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Requirements

Our normal service includes 90 day warranty, all standard accessories and manuals, and restoration to "nearly new" condition. Discounts may be offered for reduced service levels. Please let us know which of these you would be willing to consider for the price discount.

Reduced Warranty Period:
Do you require manuals and accessories for the instrument?
Will you accept an instrument with minor cosmetic and physical flaws if it operates properly?

Are you willing to prepay your order by check or wire transfer to avoid credit card fees?

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Equipment Offer Sent

Your offer has been sent to our sales department for review. You should expect a response within one business day or less.

Thank you for allowing us the opportunity to assist with your test equipment needs. We hope to earn your business.

Error Sending Request

We are very sorry but an error on the server is preventing your request from being processed.

Please contact us via email or toll free at (800) 673-4102 and we will be happy to assist you with this request.

We would also greatly appreciate it if you could provide us with this error code: 999

Unable to Process Offer

Your offer was received but we are unable to process it for the following reason:
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Please correct the issue indicated and resubmit or contact us via email or toll free at (800) 673-4102 and we will be happy to assist you with this request.