Datasheet

56F8322 Techncial Data, Rev. 16
112 Freescale Semiconductor
Preliminary
10.7 Oscillator Parameters
Note: An LSB change in the tuning code results in an 82ps shift in the frequency period, while an MSB change in the tuning code
results in a 41ns shift in the frequency period.
Table 10-15 Crystal Oscillator Parameters
Characteristic Symbol Min Typ Max Unit
Crystal Start-up time T
CS
4510ms
Resonator Start-up time T
RS
0.1 0.18 1 ms
Crystal ESR R
ESR
——120ohms
Crystal Peak-to-Peak Jitter T
D
70 — 250 ps
Crystal Min-Max Period Variation T
PV
0.12 — 1.5 ns
Resonator Peak-to-Peak Jitter T
RJ
——300ps
Resonator Min-Max Period Variation T
RP
——300ps
Bias Current, high-drive mode I
BIASH
—250290μA
Bias Current, low-drive mode I
BIASL
—80110μA
Quiescent Current, power-down mode I
PD
—0 1μA
Table 10-16 Relaxation Oscillator Parameters
Characteristic Min Typ Max Units
Center Frequency — 8 — MHz
Minimum Tuning Step Size
(See Note)
—82—ps
Maximum Tuning Step Size
(See Note)
—41—ns
Frequency Accuracy
-50°C to +150°C
(See Figure 10-4)
— +/- 1.78 +2 /-3 %
Maximum Cycle-to-Cycle
Jitter
——500ps
Stabilization Time from Power-up — — 4 μs