Precision B Lifetimes and B Mixing in CDF

The CDF detector has collected between February 2002 and February 2004 a physics quality sample of about 270 pb−1. Three topics under study, using the entire sample or part thereof, are covered here: exclusive decays lifetimes, time dependent polarization amplitudes of Bd→J/ψK*0 and Bs→J/ψϕ decays, and mixing in Bd decays.