AD9783 Data Interface questions

Does the AD9783 DAC family (AD9783,AD9781 and AD9780) LVDS interface support “dual-port" mode as suggested in the data sheet? Does the AD9783 LVDS inputs require external 100 ohm termination resistors?

  • +1
    •  Analog Employees 
    on May 3, 2011 6:43 PM

    The AD9783 DAC family only supports a single port time interleaved data interface. The dual port interface mentioned in the data sheet was a mistake and is not supported in order to keep the pin count to 72 pins. The  AD9783 DAC family does include internal 100 ohm termination resistors in the LVDS inptus. These on chip termination resistors  are specified as differntial input impedance "Rin" in Table 2 and vary from 80 to 120 ohms. External termination resistors are not required.

  • 0
    •  Analog Employees 
    on May 8, 2019 10:48 AM
    This question has been closed by the EZ team and is assumed answered.