SR850 DSP Lock-In Amplifier

INPUTS AND OUTPUTS

X, R, θ, or Trace 1-4. Traces are defined as A•B/C or A•B/C 2 where A, B,

Channel 1 Output

 

and C are selected from the quantities Unity, X, Y, R, θ, Xnoise, Ynoise,

 

Rnoise, Aux Inputs 1 through 4, or Frequency.

 

Output Voltage: ±10 V full scale. 10 mA max output current.

Channel 2 Output

Y, R, θ, or Trace 1-4. Traces are defined as A•B/C or A•B/C 2 where A, B,

 

and C are selected from the quantities Unity, X, Y, R, θ, Xnoise, Ynoise,

 

Rnoise, Aux Inputs 1 through 4, or Frequency.

 

Output Voltage: ±10 V full scale. 10 mA max output current.

X and Y Outputs

Rear panel outputs of cosine (X) and sine (Y) components.

 

Output Voltage: ±10 V. 10 mA max output current.

Aux. Outputs

4 BNC Digital to Analog outputs.

 

±10 V full scale, 1 mV resolution. May be set to a fixed voltage or swept in

 

amplitude (linear or log). 10 mA max output current.

Aux. Inputs

4 BNC Analog to Digital inputs.

 

Differential inputs with1 MΩ input impedance on both shield and center

 

conductor. ±10 V full scale, 1 mV resolution.

Trigger Input

TTL trigger input triggers each data sample and/or start of scan.

Monitor Output

Analog output of signal amplifiers (before the demodulator).

DISPLAYS

 

Screen Format

Single or dual display.

Displayed Quantities

Each display may show one of the traces.

 

Traces are defined as A•B/C or A•B/C 2 where A, B and C are selected from

 

the quantities Unity, X, Y, R, θ, Xnoise, Ynoise, Rnoise, Aux Inputs 1

 

through 4, or Frequency.

Display Types

Large numeric readout with bar graph, polar graph, and strip chart.

Chart Data Buffer

64k data points may be stored and displayed on strip charts. The buffer can

 

be configured as a single trace with 64k points, 2 traces with 32k points

 

each, or 4 traces with16k points each. The internal data sample rate ranges

 

from 512 Hz down to 1 point every 16 seconds. Samples can also be

 

triggered.

ANALYSIS FUNCTIONS

 

Smoothing

5 - 25 point Savitsky-Golay smoothing of trace regions.

Curve Fits

Line, Exponential, and Gaussian fits of trace regions.

Calculator

Arithmetic, trigonometric, and logarithmic calculations on trace regions.

Statistics

Mean and standard deviation of trace regions.

GENERAL

 

Monitor

Monochrome CRT. 640H by 480V resolution.

 

Adjustable brightness and screen position.

Interfaces

IEEE-488, RS232 and Printer interfaces standard.

 

All instrument functions can be controlled through the IEEE-488 and RS232

 

interfaces. A PC keyboard input is provided for additional flexibility.

Preamp Power

Power connector for SR550 and SR552 preamplifiers.

Hardcopy

Screen dumps to dot matrix and HP LaserJet compatible printers. Data

 

plots to HP-GL compatible plotters (via RS232 or IEEE-488). Screens can

 

also be saved to disk as PCX image files.

Disk

3.5 inch DOS compatible format, 720 kbyte capacity.

 

Storage of data and setups.

Power

60 Watts, 100/120/220/240 VAC, 50/60 Hz.

Dimensions

17"W x 6.25"H x 19.5"D

Weight

40 lbs.

Warranty

One year parts and labor on materials and workmanship.

1-6

Page 7 Page 9
Page 8
Image 8
SRS Labs manual SR850 DSP Lock-In Amplifier, Inputs and Outputs, Displays, Analysis Functions, General
Page 7 Page 9

SR850 specifications

The SRS Labs SR850 is a high-performance audio processor designed to enhance the listening experience across a variety of applications. With its advanced technologies, the SR850 delivers superior sound quality that is particularly noticeable in environments where audio clarity and fidelity are paramount. This device caters to audio professionals, audiophiles, and casual listeners who demand exceptional performance from their audio systems.

One of the standout features of the SR850 is its proprietary SRS 3D Audio technology. This innovative feature creates a more immersive soundstage, allowing users to experience audio as if they were in a live performance setting. By adding depth and dimension, it elevates the listening experience, making music, movies, and games far more engaging.

Additionally, the SR850 incorporates SRS dialog clarity technology, which enhances speech intelligibility in dialogues and vocals. This is particularly beneficial in film and television viewing, where dialogue can sometimes be drowned out by background music or sound effects. With dialog clarity, users can enjoy crystal-clear conversation tracks without adjusting volume levels continuously.

The device also supports various audio formats, ensuring compatibility with a broad range of media. It boasts inputs for both digital and analog sources, allowing connections to various devices such as TVs, laptops, gaming consoles, and more. The versatility of inputs makes the SR850 a convenient addition to any home entertainment system.

Another impressive characteristic of the SR850 is its compact and user-friendly design. The intuitive interface makes it easy for users to adjust settings to their preference, whether they are a novice or an audio expert. The device is equipped with programmable presets, enabling users to store their favorite sound profiles, making switching between settings quick and hassle-free.

Furthermore, the SR850 features advanced EQ capabilities, granting users the ability to tailor the audio output to their specific tastes. This personalized approach to sound adjustment enhances the overall experience, allowing users to get the most out of their audio content.

In summary, the SRS Labs SR850 is a sophisticated audio processor packed with features designed to significantly uplift sound quality and listening pleasure. With its cutting-edge technologies such as SRS 3D Audio and dialog clarity, an array of connectivity options, and customizable EQ settings, the SR850 stands out as an outstanding option for anyone looking to enhance their audio experience. Whether for professional use in sound engineering or personal enjoyment in home entertainment, the SR850 proves to be a valuable asset.
Top Page Image Contents