Product Description

The Hytec IP-DAC-8402 is a single-width Industry Pack that provides 16 channels of simultaneously updated digital

to analogue conversion with the following characteristics:-

Specifications

USING REGISTER TO UP DATE DACs
Using registers there are 16 registers one per channel. These can be loaded one at a time, the module can then be ARMed and the data from the registers will be serially loaded from one DAC to the next until all the data has been passed to the DACs. At this point the DAC outputs are automatically updated giving 16 simultaneous outputs. While the unit is ARMed the DACs are constantly refreshed with the contents of the registers which can be changed during this time. There is a delay which is fixed of approximately 32us after ARM is set, before all the outputs change together.

USING MEMORY TO UP DATE DACs
In this method the memory is first loaded with the required data and the number of memory locations used is entered in to the Number of Updates (NCO) register. The Control and Status Register (CSR) is then set to enable memory updates and ARM to unit with a software command. A trigger can then be issued either by a software command or by an external trigger to start down loading the data held in memory to the DACs via the registers as detail above. In this mode the registers are updated with new data from the memory at the update clock rate which is derived either internally or externally. The memory address is automatically incremented. When the programmed number of output has occurred the unit will stop and generate an interrupt if enabled or if set in continues mode the address counter will be zeroed and the output repeated (no interrupt generated in continues mode) until the ARM bit is cleared or the continues bit in the CSR is cleared.