Analog-to-digital conversion data transmission method, transmitter, and analog-to-digital conversion chip

The present invention is applicable to the field of communications, and provides an analog-to-digital conversion data transmission method, an analog-to-digital conversion data transmitter, and an analog-to-digital conversion chip. The method comprises the following steps: performing frequency shifting on multiple groups of analog data to generate multiple independent groups of digital data distributed in a first preset bandwidth; performing filtering on the multiple groups of digital data to filter out out-of-band information; and distributing the multiple groups of digital data after the filtering in a second preset bandwidth in a non-overlapping manner. In the present invention, frequency shifting is performed on data content through multiple analog-to-digital cores in an analog-to-digital converter, and unnecessary out-of-band information is filtered out, thereby making full use of the transmission bandwidth of an interface; besides, useful information of the multiple analog-to-digital cores is redistributed and efficiently transmitted to a next-level device for processing, which greatly reduces the data transmission load between the converter and an FPGA or ASIC, and effectively simplifies the design of a multiband receiver.