The TG2000, new from TTi (Thurlby Thandar Instruments), is a 20MHz function generator using direct digital synthesis (DDS) yet costing less than £500
Direct digital synthesis delivers low-distortion sine waves with improved spectral purity in comparison to analogue function generators.
Frequency stability and phase noise are excellent, and absolute frequency accuracy is better than 10 parts per million.
The TG2000 is a fully digitally controlled generator in which all functions including wave shape, frequency, amplitude, offset, and modulation can be controlled from the digital interface (USB) or by recall from the internal set-up memories.
This makes it particularly suitable for automated or repetitive test applications.
The generator incorporates fully phase-continuous sweep, linear or logarithmic, with sweep times variable between 50ms and 1000sec.
The sweep trigger source can be internal or external (including USB command), and a sweep marker is provided.
Other modulation modes include AM, gated, FSK and tone-switch using a table of up to 16 frequencies.
The TG2000 can generate frequencies between 0.001Hz and 20MHz to six digits of resolution at amplitudes between 5mV and 20V peak-to-peak EMF.
Source impedance is switchable between 50 and 600ohms.
A USB interface is incorporated which can provide full remote control of the instrument.
Nine internal non-volatile set-up memories are also provided.
The TG2000 is housed in a 2U high casing which, although primarily intended for bench use, can also be rack-mounted.
The TG2000 costs £499.00 (plus VAT) in the UK.
