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Development of an 915MHz toll road identification and payment device for use in North America.
During this project, we studied a fully integrated communication and payment processing chip to be used for 915MHz compliant toll road payment systems in North America.
The chip includes a 915MHz AM receiver as well as a RF-DAC based transmitter with high linearity output power control. The device includes internal matching network to allow for seamless integration with external antenna. Also included is a Brown Out detector and power down control to optimize battery life.
Application areas :
Application areas include toll road systems motorways, bridges, urban areas, ferries etc.
Top technical features:
- Based on 915MHz communication.
- Battery operated in range 3.6 – 1.8 V
- Ultra low power sleep current consumption ( < 5uA )
- High input power dynamic range -23dBm to +10dBm.
- Sensitivity control 0.1 dBc
- Highly linearly RF-DAC based transmitter with output power control in the range -10dBm to 1 dBm.
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