FFT Spectrum Analyzers SR760 and SR770 — 100 kHz single-channel FFT spectrum analyzers SR760 & SR770 FFT Spectrum Analyzers · DC to 100 kHz bandwidth · 90 dB dynamic range · Low-distortion source (SR770) · Harmonic, band & sideband analysis · 100 kHz real-time bandwidth · Hardcopy output to printers/plotters · GPIB and RS-232 interfaces The SR760 and SR770 are single-channel 100 kHz FFT spectrum analyzers with a dynamic range of 90 dB and a realtime bandwidth of 100 kHz. Additionally, the SR770 includes a low-distortion source which allows you to measure the transfer functions of electronic and mechanical systems. The speed and dynamic range of these instruments, coupled with their flexibility and many analysis modes, makes them the ideal choice for a variety of applications including acoustics, vibration, noise measurement, and general electronic use. High Dynamic Range The SR760 and SR770 have a dynamic range of 90 dB. This means that for a full-scale input signal, the instruments have no spurious responses larger than –90 dBc (1 part in 30,000). Even signals as small as –114 dBc (1 part in 500,000) may be observed by using averaging. The low front-end noise and low harmonic distortion of the SR760 and SR770 allow you to see signals that would be buried in the noise of other analyzers. Powerful Processing Stanford Research Systems The SR760 and SR770 use a pair of high-speed, 24-bit digital signal processors (DSPs) to filter, heterodyne and transform sampled data from its 16-bit analog-to-digital converter. This computing capability allows the analyzers to operate at a real-time bandwidth of 100 kHz. In other words, the SR760 and SR770 process the input signal with no dead time. Your measurements will be done in as little as a tenth of the time of

other analyzers, which typically have a real-time bandwidth of about 10 kHz. Easy To Use The SR760 and SR770 are easy to use. The simple, menuoriented interface logically groups related instrument functions. Context-sensitive help is available for all keys and menus, and entire instrument setups can be saved to disk and recalled with a single keystroke. Octave Measurements The SR760 and SR770 also compute both the 15 and 30 band 1/3 octave spectra, commonly used in acoustics and noise measurement applications. A-weighting compensation is Spectrum Measurements The spectrum, power spectral density,...

source is synchronized with the instrument’s input allowing transfer functions to be measured with 0.05 dB precision. The SR770 measures the magnitude and phase response of control systems, amplifiers and electro-mechanical systems, and displays the resulting Bode plot. Limit and Data Tables Sometimes it is important to keep track of a few key portions of a spectrum. Data tables allow up to 200 selected frequencies to be displayed in tabular format. Automated entry makes it easy to set up data tables for harmonic or sideband analysis. analysis lets you easily integrate the power in a selected...

Frequency Measurement range 476 µHz to 100 kHz Spans 191 mHz to 100 kHz in a binary sequence Center frequency Anywhere within the 0 to 100 kHz measurement range Accuracy 25 ppm from 20 °C to 40 °C Resolution Span/400 Window functions Blackman-Harris, Hanning, Flat-Top and Uniform Real-time bandwidth 100 kHz Signal Input Number of channels 1 Input Single-ended or differential Input impedance 1 MΩ, 15 pF Coupling AC or DC CMRR (at 1 kHz) 90 dB (input range <–6 dBV) 80 dB (input range <14 dBV) 50 dB (input range ≥14 dBV) Noise Typical 5 nVrms/√Hz at 1 kHz (–166 dBVrms/√Hz) Maximum 10 nVrms/√Hz (–160...

White Noise Source Frequency range Pink Noise Source Frequency range Chirp Source Equal amplitude sine waves at each frequency bin of the current span AutoPhase function calibrates to current phase spectrum. resolution, adjustable brightness keyboard input is provided for additional flexibility. Data storage Screen dumps and table and setting listings to dot matrix and LaserJet compatible printers. Data plots to HP-GL compatible plotters (RS-232 One year parts and labor on defects Ordering Information SR770 FFT spectrum analyzer w/source $7500 FUSE REQUIREMENTS NO USER SERVICEABLE PARTS INSIDE....