Integer Frequency Divider 18 GHz
Model G1182
- 18 GHz Input Frequency Range
- 1 – 65536 Programmable Division Ratios
- Low Phase Noise, High SFDR
- 50% output duty cycle at any division ratio
- Division Ratio Control both from Front Panel and by USB
- Fan-less conduction cooling

Frequency Divider Features
- Wide input frequency range from 100 kHz up to 18 GHz
- Two cascaded programmable 1 – 256 frequency dividers deliver wide range of division ratios, from 1 to 65536
- Two identical differential outputs allow connecting up to four loads
- Low phase noise ≤ -131dBc/Hz @1kHz offset (13.3. GHz signal, ÷14 division ratio)
- High SFDR ≥ 75 dB
- Flexible interactive control from the front panel and software control from USB
Frequency Divider Applications
- Test and Measurement Instrumentation
- Testing Automation
- Lab Testing, Prototype Systems
The G1182 is a low noise programmable integer frequency divider that covers a wide input frequency range from as low as 100 kHz GHz up to 18 GHz. It has the following functional blocks:
- Buffered differential input, which accepts the wide signal range from -6dBm to +10dBm
- Two low-noise programmable 1–256 frequency dividers connected sequentially
- The fan-out buffer with two differential outputs, which can be used as four single-ended outputs, delivering -2 dBm output signal level on each output
- USB-enabled microcontroller, which handles divider programming from the front panel and from the USB link.
The division ratio is indicated on a 5-segment LED display on the front panel and can be controlled interactively by front panel buttons. The control of the divider can also be performed by the software application through the USB connection (useful for automated applications).
The duty cycle of output signal is 50% at any division ratio.
Because of the low phase noise, low jitter, and high SFDR the divider can be used in precision measurements in research and production environments.
For the best performance please terminate unused inputs and outputs with 50 Ohm termination.
The design requires a single +12V, 2A DC supply.