Frequency-selecting type device of CDMA in digital optical fiber remote system

• Main Author: ZENG PEIZHI
• Format: Patent
• Language: Chinese; English
• Published: 10.02.2010
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION; WIRELESS COMMUNICATIONS NETWORKS

The utility model relates to a frequency-selecting type device of CDMA in a digital optical fiber remote system, comprising an ADC chip, a main processor, a DAC chip, a clock module, a digital interface and a single chip microprocessor. An input signal of the simulating front end is input into the ADC chip; the output data of the ADC chip is input into the main processor; the data of the main processor is output and then input into the DAC chip; the data of the DAC chip is used as an input signal of the simulating rear end; the output of the clock module is connected with the ADC chip, the main processor and the clock input end of the DAC chip; the digital front-end output and the digital rear-end input of the main processor are connected with a digital interface; and the output end of thesingle chip microprocessor is connected with the clock module and the DAC chip. The frequency-selecting type device has the advantages of solving the problem that the quality of the signal waveform of an overlapping zone is