直接式数字锁相环频率合成器.用ELANIX公司SYSTEMVIEW运行.-direct digital PLL frequency synthesizer. SYSTEMVIEW ELANIX companies with operations.

The basic parts of the BFSK transmitter are the preamble and the data input circuit. The preamble sequence is positioned in front of each packet of 122 bits for a total of 128 bits packet. The main purpose of the preamble is to facilitate the recepti