TDA8950TH vs TDA8954TH

[franzoni_servic]

If its possible to replace a TDA8950TH for a TDA8954TH without modification?
Pin to Pin replacement?

[TomasVaverka]

Hi Jorge,

I have checked the data sheets of the TDA8950 and the TDA8954. I did notice one difference between the two IC’s. In the TDA8950 application the resistor which determines the oscillator frequency (ROSC) is connected to VSSA. In the TDA8954 application this resistor is connected to pin 11 (OSCREF). However, the OSCREF pin is internally connected to VSSA through a 2 ohm resistor, so I do not expect any issues when the TDA8954 is used in a TDA8590 application.

Best regards,

Tomas

[franzoni_servic]

Thank you Tomas!

Best Regards!

Contacto:

Jorge FranzoniAlberti 663Bahia Blanca 8000

Linea: 0291 4887082Movil: 291 5049858

El viernes, 8 de febrero de 2019 05:46:55 ART, TomasVaverka <admin@community.nxp.com> escribió:

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NXP Community

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Re: TDA8950TH vs TDA8954TH

reply from Tomas Vaverka in Other NXP Solutions - View the full discussion

Hi Jorge,

I have checked the data sheets of the TDA8950 and the TDA8954. I did notice one difference between the two IC’s. In the TDA8950 application the resistor which determines the oscillator frequency (ROSC) is connected to VSSA. In the TDA8954 application this resistor is connected to pin 11 (OSCREF). However, the OSCREF pin is internally connected to VSSA through a 2 ohm resistor, so I do not expect any issues when the TDA8954 is used in a TDA8590 application.

Best regards,

Tomas

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