The Model 4007DDS is a versatile, high performance function generator. Implemented using advance digital technologies based on DDS topology, the units generates superb quality waveforms with high precision and stability. It provides sine & square wave outputs over the frequency range from 0.1 Hz to 7 MHz in one extended range (triangle/ramped wave outputs to 100KHz). An auxiliary TTL output at the generator frequency is available to synchronize external devices. The output voltage can be varied from 0V to 10V peak-to-peak into 50 ohms or to 20V into open circuit. A front panel pushbutton can attenuate the output by 20 dB. The DC level of the output can be adjusted using the offset control.