參數(shù)資料
型號: MC56F8322VFAE
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 數(shù)字信號處理
英文描述: 0-BIT, 120 MHz, OTHER DSP, PQFP48
封裝: ROHS COMPLIANT, LQFP-48
文件頁數(shù): 16/136頁
文件大小: 719K
代理商: MC56F8322VFAE
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
TCS
45
10
ms
Resonator Start-up time
TRS
0.1
0.18
1
ms
Crystal ESR
RESR
——
120
ohms
Crystal Peak-to-Peak Jitter
TD
70
250
ps
Crystal Min-Max Period Variation
TPV
0.12
1.5
ns
Resonator Peak-to-Peak Jitter
TRJ
——
300
ps
Resonator Min-Max Period Variation
TRP
——
300
ps
Bias Current, high-drive mode
IBIASH
—250
290
μA
Bias Current, low-drive mode
IBIASL
—80
110
μA
Quiescent Current, power-down mode
IPD
—0
1
μA
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
+/- 1.78
+2 /-3
%
Maximum Cycle-to-Cycle
Jitter
——
500
ps
Stabilization Time from Power-up
4
μs
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