1 AT-cut Crystal Performance 2 2x6 Tubular Resonator 3 Idea for Microprocessor 4 ... detail data to usi.e. Spurious, DLD, Pulling Range, C1, Q valueEQUIVALENT SERIES RESISTANCE (ESR)TYPE FREQUENCYMODEESR ( Ω )TYPE FREQUENCYMODEESR ( Ω )3.5MHz ... .0MHz≤Freq.12.0MHzFund. / AT4048.0MHz≤Freq.≤60.0MHz3rd, Overtone50 Crystal Resonator