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Item specifics
  • Test4: 4
  • is_customized: Yes
  • Test1: 4
  • Model Number: AD9854
Product Description
Module description:
The two part module consists of STC MCU control board and AD9854ASQ signal board, connected by 30 core cable. Power supply system in single chip microcomputer control board, reduce the interference of DDS signal, two modules can be fixed by six corner pillars together, and can be separately fixed, simple and convenient.
Control board can not only use 3.3V can also use the 5V type of microcontroller, shipped using STC89C52RC microcontroller, through the 232 serial port download program, the program uses C51 development, easy to understand.
Module performance:
The performance on the AD9854 in the ADI official website to find the authority that buyers believe that there is a certain understanding, all no longer wordy.
Module selection of the DDS chip model is AD9854ASQ, the maximum system clock is 300MHZ, the output of the 2 way 120MHZ quadrature signals and 1 channels with the same frequency square wave signal.
Module can achieve all the functions of AD9854, a brief introduction as follows:
1: single mode output 2 pairs of orthogonal signal
2:4 road FSK signal modulation output
3:4 road ASK signal modulation output
4:4 road BPSK signal modulation output
5:4 sweep frequency signal output, programmable sweep frequency range
6:1 road square wave signal output
Module circuit to ADI official information for the design basis, from the electromagnetic compatibility, electromagnetic interference and human nature, and so on to do a number of modifications, as follows:
1) dual power supply: analog and digital power supply separately, using magnetic beads were reduced, the analog signal to digital circuit on interference effect in high frequency circuit obviously.
2): flexible control module does not configure any processor, but all control line is connected to the 2.54MM double pin; a user can select the appropriate processor; on the other hand, the module itself is a high frequency signal source, the processor will be affected by strong electromagnetic interference.
3): flexible module FSK, OSK trigger trigger signal lines connected to the processor by the trigger pin in addition to outside
4) Fang Bo output flexible: the module internal comparator two input terminals can be selected by the 4 digit dialing switch IOUT1 and IOUT2, you can output 50% duty cycle of Fang Bo, also can output adjustable duty cycle square wave.
5) the heat problem: AD9854ASQ heat issue is more outstanding, this is also the common problems of the high frequency signal generator module; take effective measures in the cooling circuit board design, coupled with the heat sink to solve the heat dissipation problem of chip.
Technical exchange:
1, to provide a single-chip microcomputer control board circuit diagram
2, to provide DDS signal board circuit schematic
3, to provide C51 engineering code, compile environment Keil4
4, to provide 9V or 12V power adapter
5, optional SMA turn BNC signal line (15)



Packaging Details
  • Unit Type: piece
  • Package Weight: 0.5kg (1.10lb.)
  • Package Size: 10cm x 10cm x 10cm (3.94in x 3.94in x 3.94in)
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Packaging Details
  • Unit Type: piece
  • Package Weight: 0.5kg (1.10lb.)
  • Package Size: 10cm x 10cm x 10cm (3.94in x 3.94in x 3.94in)
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