SSM4567 for output 2*1W Speak application

Dear Sir,

Customer wans to use SSM4567 for 2*1W speak output. Since the SSM4567 have I/V sensing, Is there anything else that we should pay special attention for this application?

Thank you.

Yen Chen

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  • 0
    •  Analog Employees 
    on Aug 27, 2019 2:51 PM

    Hi Yen Chen,

    Yes, SSM4567 has integrated IV sense and also has boost converter to bring the supply voltage upto 5.1V from 3.6V Battery. This would enable you to get around 2 X 1W output. The Boost converter can be disabled if not required and power the SSM4567 using supply available in the system. 

    The one more thing to note, this amplifier uses 5 level modulation that helps improve the efficiency during low output level. But for this to work, the boost converter must be enabled. 

    Also note this part is WLCSP ( die is exposed) so care is required in handling during the assembly and also when designing the board. Please refer to the User Guide for the Eval Board for the reference PCB layout.

    Please pay attention to the load impedance in your application, The SSM4567 can support the min load impedance of 4 ohm.

    Let us know if you have specific questions.

    Regards

    Rajeev

Reply
  • 0
    •  Analog Employees 
    on Aug 27, 2019 2:51 PM

    Hi Yen Chen,

    Yes, SSM4567 has integrated IV sense and also has boost converter to bring the supply voltage upto 5.1V from 3.6V Battery. This would enable you to get around 2 X 1W output. The Boost converter can be disabled if not required and power the SSM4567 using supply available in the system. 

    The one more thing to note, this amplifier uses 5 level modulation that helps improve the efficiency during low output level. But for this to work, the boost converter must be enabled. 

    Also note this part is WLCSP ( die is exposed) so care is required in handling during the assembly and also when designing the board. Please refer to the User Guide for the Eval Board for the reference PCB layout.

    Please pay attention to the load impedance in your application, The SSM4567 can support the min load impedance of 4 ohm.

    Let us know if you have specific questions.

    Regards

    Rajeev

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