Schematics > Test and measurement > 1GHz Simple Frequency Counter
1GHz Simple Frequency CounterThis simple counter is
useful for frequency measurements of various wireless equipments, especially transmitters,
receivers and signal generators in VHF/UHF band. The SAB6456 is a prescaler for
UHF/VHF tuners. The circuit has an input frequency range of 70 MHz to 1 GHz, has
high input sensitivity and good harmonic suppression. With lower sensitivity it's
usable down to 3 MHz. The circuit comprises an input amplifier, a divider stage
and an output stage. The divider stage may oscillate during no-signal conditions
but this oscillation is suppressed when input signals are received. The voltage-edges
of the output signals are slowed internally to reduce harmonics in the television
intermediate frequency band.
Technical specifications:
Supply voltage: 8-20 V
Supply current: typ. 80 mA, max. 120 mA
Input sensitivity: max. 10 mV in 70-1000 MHz range
Measuring period: 0,082 sec.
Display refresh rate: 49 Hz
Download the PIC16F84 firmware
(1KB)
Title: 1GHz Simple Frequency Counter
Source: unknown
Published on: 2005-08-27
Reads: 888
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