Product specifications

The synthesizer module

5007 Valon Technology LLC Data Sheet

The Valon Technology LLC 5007 Dual Frequency Synthesizer module provides two independent, low phase

noise, frequency sources suitable for high quality clock, carrier, or local oscillator frequency generation

applications. The unique feature of our synthesizers is our microprocessor controller with FLASH based

non-volatile memory that lets you retain your frequency setting after power down. This makes these

synthesizers ideal for portable equipment or in any application where user programmable and non-volatile

frequency settings are desirable. Careful circuit design and layout techniques assures low phase-noise and

spectral purity across all frequencies.

A RS-232 or USB serial interface and our intuitive user configuration software allows the user to program

the desired operating frequency of each synthesizer and save to the on-board FLASH memory. The

synthesizer will then power up using the FLASH memory to reload the last saved frequencies.

Either output can be independently set to any frequency in the 138-4400MHz range. The synthesizer can be

used with the on-board TCXO or an external reference.

The synthesizer module consists of two separate fractional/integer-N synthesizers chips. The RF output of

the synthesizer chips are each buffered by a wide-band MMIC RF amplifier followed by an output

attenuator.

Each synthesizer chip has its own 3.3V low-noise, LDO voltage regulator. A separate 5V LDO is used to

power the output buffer amplifier. The recommended input voltage is 5.0V in order to ensure the LDOs are

in regulation.

Both synthesizers are referenced to a common 10MHz temperature stabilized crystal oscillator (TCXO). A

software controlled witch also lets the user select an external reference. When the internal reference is

selected, a sample of the reference signal is available at the reference connector. External reference input