Double-range signal attenuation device

Abstract

The invention relates to a double-rang signal attenuation device which comprises a circuit board, an attenuation integrated circuit, a plurality of first plugging connectors and a plurality of second plugging connectors. The attenuation integrated circuit is arranged on the circuit board and comprises a plurality of analog signal channels. The first plugging connectors are arranged at one end of the circuit board in a rowing mode and are used for being correspondingly connected with a port of a first module to be plugged and the input ends of the analog signal channels, each first plugging connector comprises a fixed piece and a movable piece, each fixed piece is welded to the circuit board, one end of each movable piece is connected to the each fixing piece in a pluggable mode, and the other end of the movable piece is connected to each first module to be plugged in a plugging mode; a first conductive piece is arranged in each fixed piece, a second conductive piece is arranged in each movable piece, and the second conductive pieces are used for being connected with the first conductive pieces. The second plugging connectors are arranged at the other end of the circuit board in a rowing mode and are used for being correspondingly connected to a port of a second module to be plugged and the output ends of the analog signal channels, and the structure of each second plugging connector is same as the structure of each first plugging connector. The double-rang signal attenuation device integrates the analog signal channels and lowers processing cost.

Description

technical field [0001] The invention relates to a signal attenuation device, in particular to a dual-range signal attenuation device. Background technique [0002] At present, the electronic modules that output analog signals on the market need to attenuate the signal, and are usually integrated with other modules by cable connection, which makes the integrated system cumbersome and messy, and does not have impedance matching, frequency compensation, range protection, etc. Because there are few formed attenuation products available on the market, in general, in practical applications, designers need to build attenuation circuits that meet the requirements. This method allows designers to repeatedly design attenuation circuits with different parameters, and at the same time Considering factors such as input impedance matching and signal over-range protection, it is more complicated to implement, and it is difficult to integrate the attenuation circuit for the entire row of in...

AI Technical Summary

Problems solved by technology

Since the entire row of input / output ports needs to be designed according to the distance between the corresponding ports of the modules to be plugged in, if the rows of ports are directly welded, the distance between the entire row of ports must be very accurate, and the mechanical processing of the circuit board plate The error is required to be within 0.02mm, which requires expensive processing costs

Images