The ATA8352 device has a built-in BER Test mode to perform BER testing for the RX
sensitivity measurement. The BER measurement can be set up using PN31 with random data
payload according to ITU-T 0.150 (05/96). The following polynomial and start values are
used:
for PN31: x31 + X26 + 1 with x0 =
1111111111111111111111111111111
The device supports the following TX and RX operation to perform the BER test:
Use the ATA8352 device as a BER
transmitter and another as a BER receiver
Use a signal generator as a BER
transmitter and the ATA8352 device as a BER receiver
The ATA8352 device, which operates as a BER receiver, activates the GPO[4:0] pins
in GPO mode 31 to show the test results on these pins. Start the BER receiver before the
BER transmitter or signal generator to detect the preamble and the synch word. For more
details, refer to the ATA8352 Impulse-Radio Ultra-Wideband (IR-UWB)
Transceiver User’s Guide (DS50003125)). After detecting the synch word, the
receiver continuously compares the received data bits with an internally-generated PN31
bit sequence (start value: ‘111…111’). The GPO1 pin
shows the difference between the expected data bit and the received data bit.
The following is the GPO pins configuration in this BER Test mode:
GPO0: expected data bit
GPO1: PN31
GPO2: received data bit
GPO3: synch word is detected
GPO4: data bit valid pulse
The following figure shows the GPO output pattern during BER testing.
Figure 2-6. GPO Signals at BER Receiver
The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.
