CY2048WAF
Document #: 38-07738 Rev. *A Page 4 of 7
Notes:
2. TPJ2 measured using DTS-2075, # of events set to 10, 000.
AC Electrical Specifications[1] over the operating range, except as noted
Parameter[1] Description Condition Min. Typ. Max. Unit
FOUT Output Frequency 0.625 – 48 MHz
DC Output Duty Cycle XTAL Buffered or Divided 45 50 55 %
TR Rise Time Output Clock Rise Time, Measured from 20% to
80% of VDD, COUT = 15 pF. 2.5 ns
TFFall Time Output Clock Fall Time, Measured from 80% to
20% of VDD, COUT = 15 pF. 2.5 ns
tPJ1 RMS Period Jitter XIN = 10–48 MHz. Measured at VDD/2 – 4 15 ps
tPJ2[2] Peak-to-peak Period Jitter XIN = 10–48 MHz. Measured at VDD/2 – 30 80 ps
DL Crystal drive level 48-MHz crystal, CL = 7 pF, C0 = 2 pF,
R1 = 10Ohms, Temp. = 25°C, VDD = 3.6V 350–400 µW
–R Negative Resistance Measured at 48 MHz, CL = 10 pF, C0 = 5 pF – – –150 Ω
FDRIFT Output Frequency Drift 3.0V ± 10%, 3.3V ± 10% for Temp. = 25°C –2 – 2 ppm
Phase Noise, Temp = 25°C, VDD = 3.3V,
FNOM = 10MHz, XCAP = 7F (Hex)
Offset dBc/Hz (Typ)
10 Hz –90
100 Hz –115
1 kHz –130
10 kHz –140
100 kHz –140
1 MHz –140
Crystal Oscillator Tuning Capacitor Values
Capacitor Bit Capacitance (pF) per Side
C75.000
C62.500
C51.250
C40.625
C30.313
C20.156
C10.078
C00.039
XOUT
C0C1C2C3C4C5C6C7 C7C6C5C4C3C2C1C0
XIN
CXIN CXOUT
Figure 1. Programmable Load Capacitance
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