Option turns RTO scopes in to MSOs - Embedded.com

Option turns RTO scopes in to MSOs

Rohde & Schwarz has developed an mixed signal oscilloscope (MSO) option for use with its RTO oscilloscope to provide 16 digital logic channels while using the base unit for mixed signal analysis.

The hardware option, which is inserted in to a slot on the rear of the instrument, turns it into a MSO. In addition to the usual two or four analog channels, the oscilloscope will then provide 16 digital logic channels with 400 MHz input frequency. Time correlation is provided between the instrument's analog and digital sections. 

In product development and during sophisticated service work, users perform measurements on the digital signal lines of parallel and serial interfaces. This includes, for example, the parallel interfaces of A/D or D/A converters, parallel buses such as PCI or DDR as well as serial buses such as I2C/SPI or LIN/CAN. For all these applications, t

The R&S RTO with MSO functionality provides a sampling rate of 5 Gsample/s over the entire 200 Msample memory depth. A maximum time resolution of 200 ps makes it possible to accurately analyze signal content and quality.

The option comes with hardware-based acquisition, trigger and processing units. Even when the digital channels are on, acquisition rates of over 200,000 waveforms/second can be achieved. A digital trigger ensures high precision and a variety of trigger types helps to pinpoint errors.

Rohde & Schwarz has also added a trigger and decoding option for the FlexRay serial communications interface for use with the  RTO scopes. The option triggers on FlexRay-specific protocol data and the acquired waveforms are then decoded into readable protocol content.

The hardware-based trigger system provides high acquisition rates and a range of protocol-specific trigger conditions enables flexible testing and debugging approaches. Test dialogs are intuitive as explanatory graphics and links to other settings facilitate configuration. Protocol details in the measured waveform are color-coded and protocol data is compiled in tables.

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