AP | SWR-2755 音頻測試開關(guān)|AudioPrecision|音頻開關(guān)
廠商名稱： AP |AudioPrecision


Audio Precision offers three models of the SWR-2755 audio switchers, which expand the 2-channel input and output capabilities of Audio Precision 2700 series and ATS-2 audio analyzers, as well as older System One and System Two instruments.

SWR-2755 switchers replace the current SWR-2122 switchers, which have been discontinued. The new switchers are entirely compatible with our current products and offer better performance at a lower price.
Built with the same feature set and solid integrity of the SWR-2122, the new SWR-2722 series bring significantly lower crosstalk (18 dB better in an unbalanced 600 Ω load; 10 dB better in a balanced 600 Ω load), a new universal power supply that automatically adjusts to all line voltages, a convenient rear-panel ground lug and full EMC and safety regulatory compliance. Manufacturing economies enable us to offer the new switchers at a significantly lower price.


Key features

* Input and output configurations enable switching of generator outputs or analyzer inputs, or both. 
* Balanced and unbalanced configurations are available. 
* Multiple switchers can be connected to an Audio Precision analyzer, expanding the system capability to as many as 192 inputs and outputs. 
* Low inter-channel crosstalk, less than –150 dB at 20 kHz in the balanced configurations. 
* All switchers are one rack unit (RU) high (1.75"). switchers can be used on the bench or rack mounted with an optional rack mount adapter kit.

Specs 

Electrical Characteristics 

* Max Voltage Rating 200 Vpk, 160 Vrms 
* Max Signal Power 5 W or 200 mA

* Crosstalk 
Balanced 600 ohm load 
–150 dB @ 20 kHz
–136 dB @ 100 kHz 
Unbalanced 600 ohm load
–138 dB @ 20 kHz
–124 dB @ 100 kHz

* Series resistance typically <0.3 ohm per side 
* Shunt capacitance typically <90 pF, from signal path to chassis (100 nF from BNC shell to chassis on U versions). 
* Reverse termination 604 ohm, 250 mW maximum