TREE

Procyon is a general purpose development board with special features for Ethernet, USB, and audio applications. It is based on Luminary Micro/Texas Instruments LM3S9x9x series of parts. The initial MCU is LM3S9B90. The board contains the following features: 80 MHz, 100 Pin Cortex M3 Processor 16 MB SDRAM accessed on a 50 MHz EPI bus USB Host/Device/OTG port microSD card slot (Attached to SSI1/SPI1) 10/100 Ethernet I2S header for DAC output interface Up to 24 GPIOs available 3 UART, 2 I2C, 1 CAN, 2 SPI/SSI (one shared with microSD card) 10-bit ADCs General purpose timers: four 32-bit or eight 16-bit FTDI/Basic UART debug/program interface, on 16 pin GPIO/configuration header Three 10 pin headers for daughter boards 20 Pin JTAG Header User LED and User switch [ ]

The sensitivity of receiver it is possible to increase itself considerably, if is interfered, between this and his aerial, a amplifier RF. 40 MHZ-Wide Band RF Amplifier Circuit Diagram : The amplifier of circuit, does not use in resonant circuits and for this is suitable, so much for mid waves, what for the low waves, up to the 40 MHZ. The gain his it is the order 20db and it consumes 7mA, when it is supplied with 12 until 15V dc. His entry and the exit are adapted with coaxial cable, complex resistance 75ohm. Source : users.otenet.gr