56F8323 Datasheet, PDF (116/140 Pages) Freescale Semiconductor, Inc – 16-bit Digital Signal Controllers

Table 10-15 Crystal Oscillator Parameters (Continued)
Characteristic
Resonator Min-Max Period Variation
Bias Current, high-drive mode
Bias Current, low-drive mode
Quiescent Current, power-down mode
Symbol
T_RP
I_BIASH
I_BIASL
I_PD
Min
—
—
—
—
Typ
—
250
80
0
Max
300
290
110
1
Unit
ps
μA
μA
μA
Table 10-16 Relaxation Oscillator Parameters
Characteristic
Min
Center Frequency
—
Minimum Tuning Step Size
—
(See Note)
Maximum Tuning Step Size
—
(See Note)
Frequency Accuracy
—
-50°C to +150°C
(See Figure 10-4)
Maximum Cycle-to-Cycle
—
Jitter
Stabilization Time from Power-up —
Typ
8
82
41
+/- 1.78
—
—
Max
—
—
—
+2 /-3
500
4
Units
MHz
ps
ns
%
ps
μs
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.
56F8323 Technical Data, Rev. 17
116
Freescale Semiconductor
Preliminary