Features. My voltage-to-frequency converter (VFC) circuit (Figure 1) has a high impedance input stage, it can operate reliably beyond 100 MHz, it can be operated with a single 5.25-V supply (or a ...

The prescaler described here connects to the front end of a 100-MHz ... deep. Electronic components are mounted on 0.062-in. (1.57-mm) double copper-sided printed-circuit board (PCB) ...

In any case, a Z80 version would require a new PCB design. ... In accelerated mode, cycle accuracy does not matter at all — although the 65F02 is actually cycle-accurate in 100 MHz mode too.

[Ross] is the proud owner of a 50 MHz Rigol DS1052E oscilloscope. He’d like to have the 100 MHz version but the $400 difference in price puts it out of his reach. After some extensive poking … ...