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High Performance RF Modulators, PLL and VCO products
High Performance RF Modulators, PLL and VCO products Forum
TRF371109 BBoutn and BBoutp pins
I am examining the documentation of TRF371109 (http://www.ti.com/lit/ds/symlink/trf371109.pdf).
BBIoutn and BBIoutp pin positions are not well defined:
page 1: 33 BBIoutn, 34 BBIoutp
page 2: 33 BBIoutp, 34 BBIoutn
page 6: 33 BBIoutn, 34 BBIoutp
page 7: 33 BBIOUTN Baseband I (in-phase) output: positive terminal (???)
34 BBIOUTP Baseband I (in-phase) output: negative terminal (???)
page 38: 33 BBIoutn, 34 BBIoutp
TRF3711xxEVM documentation (http://www.ti.com/lit/ug/slwu069b/slwu069b.pdf):
page 11: 33 BBIoutp, 34 BBIoutn
What are the correct positions of BBIout signals?
Thanks in advance.
The BBout pin-out on the TF3711-09 are technically labelled correctly. The pin-out on the -25 flavor and -35 have one set of p,n flip-flop to match up to the pin-out of most ADCs so that the lines do not cross. In any event, the swapping of p,n can easily be reversed digitally so the layout is typically routed most efficiently for the ADC.
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