Accelerators are the core components of navigation
systems, and the signal they outputs is usually in form of current, which is analog signal. In order to
convenience decode for the navigation computer,
the signal needs a current-to-frequency convert circuit!
AD652: Voltage (Current)-to-Frequency Converter
Clock Input Frequency: 4 MHz
Maximum Input Voltage: +VS = 36 V
The analog input
signal to the AD652 is converted to digital
frequency output pulses which can be counted by simple digital means. The reference frequency (clock input) is generated by the FPGA (Timer/Counter).
اگرچه این ساختار، در طراحی های جدید پیشنهاد نمی
شود!
