Hello Eric...could we engage in a discussion about what it is you are after ?...it may be protracted.
My thoughts are that any help is better than no help ...while I too wait for help, I have done some Analogue Circuit Analysis on the front end of the TRF7960/70
I was intrigued by all the past forum posts that pivot around this little piece of circuitry... I use Spice MicroCap10 and Altium10 to consider things.
I do not own a TRF7970. but that's no impedance to reflections.
My preferred field is more in 134.2KHz HDX ; however I am interested in 13.56MHz RFID
Can we focus and refer to :-
1. The TI document "SLOS743B-AUGUST 2011-REVISED MARCH 2012"
2. The Schematic "Figure 4-1-Application Schematic-Parallel MCU Interface" (page 13)
You obviously make now reference to "Table 5-5 RX SpecialSetting Register (0x0A)"... on bandwidth data.
You seek help on SubCarrier "Sensitivity"?....please explain what you are doing and want, to begin our talk.
Perhaps we can both clear up each others misconceptions?
Kind Regards
Ray