The signal generator can generate the PN31 sequence for the BER test with the telegram
structure with preamble, synch pattern and data bits. This generator generates the
modulated FM signal at the UWB frequencies with an adjustable output level. The
following figure shows the setup for the BER test measurement using a signal
generator.
Figure 2-9. BER Setup with a
Signal Generator
The signal generator is controlled by a PC application to load the data pattern and to
control the output power and signal generation. The ATA8352 DUT receiver is connected to
the SPI and GPO signals to a host MCU which is controlled by the PC application.
This setup is used for the automated BER measurement using a UWB reference signal from a
calibrated signal generator. It is also used to perform other measurements, such as
receiver-blocking characteristics.
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