Fairport, NY. Saelig Co. Inc. has announced the availability of the USB-stick-sized TDDS100-48, a laboratory quality direct digital synthesized RF signal source with a frequency range of 1 Hz to 100 MHz and a minimum of 0-dBm output power that is available from its SMA female socket. The TDDS100-48 USB-controlled high-purity source can be swept in steps as low as 1 Hz between any two frequencies in its specified range. Frequency changes are phase-continuous, so there are no glitches and phase noise is better than -140 dBc at 100 kHz. Second and third harmonics are below -60 dBc at 10 MHz.

The unit also contains 0.5 GB of flash memory used for installation files, test data, and other supporting documentation. Current consumption from the USB 2.0 interface is 200 mA at 5V. The TDDS100-48 is controlled using the provided graphical interface software, which features both numeric entry and slider controls for setup and adjustment.

Applications include local oscillator for frequency conversion, scalar measurements, and pure tone reference signal. Two or more units can be combined for multitone testing. Use of an optional hub allows the source to remain in a given state even after the host PC is removed from the system.

Developed by RF design house Telemakus, the TDDS100-48 is available from Saelig.

www.saelig.com/category/telemakus.htm