Support for AFT05MS003N

[languer]

I have the following questions regarding the AFT05MS003N.

• Can the AFT05MS003N_PDK be used to predict operational performance at +5V drain voltage?
• Is non-linear operation supported by the PDK?
• Is Noise Figure supported by the PDK?
• Are there recommended bias circuits for this LDMOS device?

Thanks in advanced.

[languer · Accepted solution]

Following is answer provided by product support team:

AFT05MS003N_PDK can be used to predict operational performance at +5V drain voltage. Freescale/NXP MET LDMOS Model is an empirical large signal nonlinear model and is capable of performing small-signal, large-signal, harmonic-balance, noise and transient simulations. however, we really do not know the accuracy of the noise, as that is not something we focus on for this device.

If you need temperature compensated bias circuit, please follow this application note:
http://cache.nxp.com/files/rf_if/doc/app_note/AN1643.pdf

I can confirm PDK seems to provide reasonable linear approximation. Have to assume it also provides a reasonable non-linear approximation (but have yet to verify this). Can confirm the PDK does not seem to model noise correctly, as the numbers come out unrealistic (which was a possibility according to the response).

AFT05MS003N_PDK can be used to predict operational performance at +5V drain voltage. Freescale/NXP MET LDMOS Model is an empirical large signal nonlinear model and is capable of performing small-signal, large-signal, harmonic-balance, noise and transient simulations. however, we really do not know the accuracy of the noise, as that is not something we focus on for this device.

If you need temperature compensated bias circuit, please follow this application note:
http://cache.nxp.com/files/rf_if/doc/app_note/AN1643.pdf