Overview: MOTOROLA
SEMICONDUCTOR
TECHNICAL DATA Order this data sheet by DSP56ADC16/D
DSP56ADC16 Technical Information
DSP56ADC16 Available in a 20 pin CERDIP package 16-bit Sigma-Delta Analog-to-Digital Converter The DSP56ADC16 is a single chip, linear, 16-bit oversampling analog-to-digital (A/D) converter, providing output sample rates up to 100 KHz. Third order noise shaping sigma-delta technology is employed utilizing 64 times oversampling which yields 96 dB dynamic range and 90 dB signal-to-noise ratio for the signal bandwidths from 0 to 45.5 KHz with an in-band ripple of less than 0.001 dB. The DSP56ADC16 is an ideal choice for high performance digital audio systems, such as digital audio disks, tapes, and processors as well as voice-bandwidth communication and control applications. It does not require anti-aliasing filters and sample-and-hold circuitry because they are an inherent part of the sigma-delta technology. Due to the scalable design principles, the effective output sampling rate can be adjusted from 8 KHz to 100 KHz without losing specified characteristics. The DSP56ADC16 can easily be interfaced to the DSP56001/2 or other host processors using its flexible serial interface. An output is also provided before the final FIR decimation filter for applications requiring higher speed, lower group delay, and only 12-bit accuracy for AC levels. The DSP56ADC16 can also be used with an input multiplexer at a minimum output sampling interval of 15 µs in the comb filter output mode.
