Sundance SMT148 - Manual (Page 10)

Version 1.4 Page 10 of 35 SMT148 User Manual
Global Bus connections
Some of the Global bus signals from the TIM sites are connected point-to-point to the
FPGA on the SMT148 carrier card.
These 19-bit data communication links can be used for different purposes (McBSP,
HPI, interrupts …) and any protocol could be implemented in order to meet specific
requirements. The firmware in the FPGA will make use of these links to give more
flexibility to the system and thus balance the data/control load on the carrier
depending on the customer constraints.
DAC circuitry
The SMT148 comprises eight 16-bit low-speed DAC channels with a ±10V output
voltage span (
DAC7742 , 200kSPS/channel max) and internal voltage reference. See
firmware description for details about DAC control.
Figure 3 : DAC circuitry