1.5 GHz prescaler

Most simple and inexpensive frequency meters have a maximum input frequency of 10 MHz or 100 MHz. Decimal prescalers that enable frequencies in the gigahertz ranges to be measured are expensive and usually require a special type of RF preamplifier. Not so with the SDA4212 from Siemens, which offers new ways of building a compact, low-cost 1.5-GHz divide-by-100 prescaler.