4xADC 40MSPS 12 bit, 4xDAC 125MSPS 12/14bit
The SMT959 is an ADC – DAC module, SLB expansion card.
The module combines four analogue-to-digital channels capable of converting analogue inputs into 12Bit digital words up to 40 Mega samples per second (Msps) and four digital-to-analogue channels capable of converting 12/14Bit digital inputs words up to 125Msps into its corresponding analogue outputs.
The module uses the Sundance Local Bus (SLB) in order to interface to DSP modules such as the SMT339.
Analogue to Digital Converter (ADC)
The ADC is based on National Semiconductors ADC12D040. These devices convert the analogue data steams into digital 12 Bit 2.5V logic data words. This converter uses a differential, pipeline architecture with digital error correction and an on-chip sample-and-hold circuit to minimise power consumption while providing excellent dynamic performance.
Digital to Analogue Converter (DAC)
The DAC is based on Texas Instruments DAC2904Y. These devices convert 14Bit digital data steams (12Bit DAC2902Y) into there corresponding analogue output voltages. The DAC2904 offers exceptional dynamic performance, and enables the generation of very-high output frequencies for a wide variety of waveform-synthesis applications.
s959