UP300.pdf

Audio Analyzers

¸UP 300/¸UP 350

10 Hz to 80 kHz

Professional audio analyzer

for production, laboratory and service

The ¸UP 300 and ¸UP 350 are favorably priced

audio analyzers with a frequency range up to 80 kHz that

can handle any of today‘s common applications. The

instruments feature a broad scope of functions, good tech-

nical characteristics and compact design. The ¸UP 300

includes all conventional audio engineering measurements

and generates the required test signals. Its analog inputs

and outputs are dual-channel in design.

The ¸UP 350 goes one step further by providing digital

audio interfaces and the capability to measure the digital

audio protocol and digital sampling rate.

These two audio analyzers offer an immense range of

applications — whether on the lab bench, in service or as

a flexible measuring instrument in automatic production

systems.

High signal quality

High-end measurement characteristics

Extensive measurement functions

Dual-channel signal generation and measurement

¸UP 300 for analog interfaces

¸UP 350 for analog and digital interfaces

Remote control via USB interface

Condensed data

¸UP 300

Frequency range

10 Hz to 80 kHz

Level range

up to 33 V

Input noise

<2 µV (A-weighted)

Fast Fourier transform

up to 16 ksamples

¸UP 350, all the above plus

Sampling rates

32 kHz to 192 kHz

Audio Analyzers ¸UP 300/¸UP 350

The menu area displays

menus for setting

parameters and functions

The softkey area displays

different instrument

functions as a function of

the selected menu

Rotary knob

for gradually varying

instrument parameters

Numeric keypad

for entering

numeric parameters

Arrows

for navigating in the menus

Buttons

for confirming entered values

System key

for calling system and

service functions

Ergonomic user interface

Operation is menu-guided so that even untrained users will quickly obtain correct results.

Clear structures simplify navigation within the menus.

The high-contrast TFT color display with 320 × 240 pixel resolution allows traces to be read even at

odd angles or when the incidence of light is unfavorable.

Audio Analyzers ¸UP 300/¸UP 350 3

Applications

Because of its large scope of functions, the

¸UP 300 is ideal for numerous analog audio

applications. The ¸UP 350 is even more pow-

erful, with the added capability of performing

measurements on digital audio instruments.

Generation of diverse test signals, single- or dual-channel

Measurement of linear and nonlinear distortion

Extensive selection of filters as standard

FFT analysis with high resolution

Test signals

Measurement functions

■

Sinewave signals for measuring frequency response,

level linearity and harmonic distortion

■

Level measurement with rms, peak or quasi-peak weighting

■

Selective level measurement with adjustable bandwidths

■

Level and frequency sweep for sinewave signals

■

DC voltage measurement

■

Two-tone signals for modulation distortion analysis and

difference frequency distortion measurement

■

THD+N or SINAD measurement: measurement of the sum

of the harmonics, including noise

■

Multitone signal from up to 17 sinewave signals of any

frequency

■

THD measurement with selection of the weighted harmonics

■

Sinewave burst signal for testing the dynamic response of

audio circuits

■

Modulation distortion analysis and difference frequency

distortion measurement

■

Noise for a variety of applications; can also be superimposed

on the sinewave signals

■

Frequency and phase measurement

■

Polarity test for checking for possible reversed polarity of

a signal path

■

FFT analysis for displaying the spectrum with a resolution

of <3 Hz

4 Audio Analyzers ¸UP 300/¸UP 350

Audio Analyzer ¸UP300/UP350

Diverse high-quality test signals

The generators in the Audio Analyzers ¸UP 300 and ¸UP 350 set new stan-

dards in the lower price segment. By providing a wide variety of sinewave signals,

two-tone and multitone signals, bursts and noise, the instruments offer the ideal test

signals for measurements in the lab, in service and in production, as well as in uni-

versity education. Because the audio analyzers have inherent distortion of less than

–90 dB, even high-end audio devices can be measured.

High-end measurement characteristics

The audio analyzers offer bandwidths of up to 80 kHz, enabling the user to perform

measurements even on broadband audio equipment. The ¸UP 350 is capable of

sampling rates up to 192 kHz – unprecedented in this class of instruments.

Extensive selection of filters

The ¸UP 300 and ¸UP 350 contain a wide variety of weighting, third-octave

and octave filters. As many as three filters can be combined.

Powerful FFT analysis

The FFT analysis capability of the ¸UP 300/350 also sets new standards in this

class of instruments. This capability supports up to 16 k points and provides numer-

ous window functions, which enables it to display the spectral composition of sig-

nals up to 80 kHz in bandwidth.

Audio Analyzers ¸UP 300/¸UP 350 15

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