MartinFowler

(Ultra-low cost) 14-Bit, 165M high-speed and high-precision analog-to-digital conversion module DAC904/902

 
Overview

DAC904E is a high-speed DAC launched by TI

Can be used in the following scenarios:

  • cellular base station
  • Communication transmission channel
  • digital microwave link
  • cable modem
  • Direct Digital Synthesis (DDS)
  • Arbitrary waveform generation (ARB)
  • Medical/Ultrasound
  • High speed instrumentation and control
  • Video, digital TV

 

Has the following advantages:

  • The chip uses a single power supply and is compatible with 5V and 3V logic
  • Spurious-free dynamic range: 20MHz Output at 100MSPS: 64dBc
  • Low glitch: 3pV-s
  • Low power consumption 170mW@5V
  • Optional internal or external reference
  • Adjustable full scale range

 

The BOM cost of using disassembled parts is no more than 5 yuan.

7.31 is now in the process of board verification

8.5 Welding test:

PCB front:

I forgot to buy a female header, so I used a 20pin one instead:

 

 

 

 

 

 

 

Waveform:

 

 

 

 

 

 

 

 

 

 

 

 

 

参考设计图片
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