Frequency Counter

1. Frequency Counter

IMD
Frequency Counter
INNOVATIVE MICROWAVE DEVICES, LLC
RF INPUT
LIMITING
AMPLIFIER
ECL
MC100ELT32
ECL
MC100EL15
CLK
RESET
F/2
CLK
GATE SIGNAL
ECL
D FLIP FLOP
MC100ELT52
ENABLE
ECL
MC100EL34
(CLOCK DISTRIBUTION)
F/2
ECL
MC100EL34
(CLOCK DISTRIBUTION)
F/8
F/4
D0
D1
D2
RF INPUT – 50 ohm system
CLK – 25 MHz
RESET SIGNAL – Asynchronous signal
D0- D7 - Output Bits
GATE SIGNAL – 5.4 usec – accuracy window and hold – 1/5.4usec = 185 kHz
D3
F/2
F/4
F/8
D4
D5
D6