An AIS-SART is a self-contained radio transmitter that is deployed by a survival craft or distressed vessel to notify its position for the purpose of rescue. In a rescue situation the device repeatedly transmits its updated position reports using a standard Automatic Identification System (AIS). Position and time synchronisation is derived from an onboard GNSS receiver (e.g. GPS). Every minute the unit transmits multiple position reports to maintain a high probability that at least one of the position reports is sent on the highest point of a wave, guiding rescue services accurately to its location.
The CMX7045 is a highly integrated and flexible baseband processor fulfilling the needs of an AIS-SART and meeting IEC 61097-14 requirements. In addition to providing the core AIS-SART formatted data functionality, the CMX7045 incorporates a number of auxiliary operations that assist in the overall system implementation and therefore reduce component count and cost.
CMX7045 AIS-SART Processor IC:
• 9600 baud GMSK modulator
• AIS-SART formatted data
• Very low power sleep modes
• PA Ramp automation
• Four DAC outputs
• Multiplexed two-input ADC
• System PLL clocks
• Small 48-pin VQFN/LQFP packages
• IEC 61097-14 compliant
Retrieved by Claude Everton VE2YI
Source: CML Microcircuits
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