ASC-50

Frequency Devices'ASC-50, is a laboratory bench-top programmable instrument that combines familiar analog signal input and output with the power and flexibility of DSP. The ASC-50 provides the user with finger-tip control of filter type, (low-pass, high-pass,band-pass, and band-reject), operating frequency,pole/bandwidth configuration, pre and post gain settings, and analog/DSP filter functions - including many not available through conventional analog techniques. All are accessible at the touch of a button.With a frequency range from 0.1Hz to 30kHz combined with amplitude response of Butterworth,Chebychev, elliptic and finite-impulse-response (FIR)filter functions, the ASC-50 offers wide tuning flexibility without the need for pre-defined programming.

An analog instrumentation interface provides input gain; DC offset control and variable output gain along with selectable single-ended and differential inputs to accommodate a variety of driving signals. Additionally,input DC-offset control is provided with expanded resolution. With the exception of filter ASC-50 and frequency changes all parameters of the ASC-50 can be altered
on the fly without halting signal flow. Real-time bypass and gain-control facilitate test comparisons with and without the filter activated.

A four button touch-pad coupled with a liquid-crystal display (LCD) affords the user complete control of various signal conditioning functions. Through the LCD, the operator of ASC-50 is prompted by a selection of several filter types, functions, frequency and gain settings. Less than optimum selections are indicated,providing guidance without regimentation. Saturation (over-range) conditions are indicated on both the input and output permitting ease of system setup and use.