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INA1650-Q1: Line Receiver for Differential Audio Signals in a Split-Supply System

May
Genius 9880 points
Part Number: INA1650-Q1
Other Parts Discussed in Thread: INA1650

Hi, 

Customer have questions regarding the single supply for this IC, please see details below.

In Fig 53 (pg 25), how is the circuit to be modified for Single Supply, 12 VDC, nominal, for car operation?

Customer plan is to switch out the XLRs and switch in RCAs (Two system configurations would be Stereo Balanced (XLRs) or Unbalanced (RCAs).

Thank you in advance.

Regards,
Maynard

  • 0
    TI__Mastermind 26085 points

    Maynard,

    I have attached a Tina simulation at the bottom of this post for reference. Below you can see that I have the INA1650 operating in single supply configuration with the COM pins connected to Vmidout. The transient simulation is shown below to reflect the behavior on single supply with the level shifts for common mode and the REF pins. Let me know if you have any further questions and I will be happy to help!

    INA1650 Single Supply.TSC