Enabling Test Modes on the MAX9247
The MAX9247 is a 27-bit, 2.5MHz to 42MHz DC-balanced LVDS serializer. Intended for transmitting digital video in automotive applications, it converts three 6-bit words into a single LVDS data stream. This data stream is then deserialized by devices such as the MAX9218, MAX9248, or the MAX9250. The MAX9247 features an internal test mode, which is useful for debugging the serial link or generating a known-good test pattern for parameter measurement. This application note details the MAX9247’s two primary test modes: PRBS and unencoded.
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