参数资料
型号: MC56F8006MLF
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 32 MHz, MICROCONTROLLER, PQFP48
封装: 7 X 7 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, MS-026BBC, LQFP-48
文件页数: 57/106页
文件大小: 1215K
代理商: MC56F8006MLF
MC56F8006/MC56F8002 Digital Signal Controller, Rev. 4
Specifications
Freescale Semiconductor
54
8.9
Phase Locked Loop Timing
8.10
Relaxation Oscillator Timing
Table 25. Phase Locked Loop Timing
Characteristic
Symbol
Min
Typ
Max
Unit
PLL input reference frequency1
1 An externally supplied reference clock should be as free as possible from any phase jitter for the PLL to work correctly. The
PLL is optimized for 8 MHz input.
fref
48
MHz
PLL output frequency2
2 The core system clock operates at 1/6 of the PLL output frequency.
fop
120
192
MHz
PLL lock time3 4
3 This is the time required after the PLL is enabled to ensure reliable operation.
4 From powerdown to powerup state at 32 MHz system clock state.
tplls
—40
100
s
Accumulated jitter using an 8 MHz external crystal as the PLL source5
5 This is measured on the CLKO signal (programmed as system clock) over 264 system clocks at 32 MHz system clock
frequency and using an 8 MHz oscillator frequency.
JA
0.37
%
Cycle-to-cycle jitter
tjitterpll
—350
ps
Table 26. Relaxation Oscillator Timing
Characteristic
Symbol Minimum Typical
Maximum
Unit
Relaxation oscillator output frequency1
Normal Mode
Standby Mode
1 Output frequency after factory trim.
fop
8.05
400
MHz
kHz
Relaxation oscillator stabilization time2
2 This is the time required from standby to normal mode transition.
troscs
—1
3
ms
Cycle-to-cycle jitter. This is measured on the CLKO signal
(programmed prescaler_clock) over 264 clocks3
3 J
A is required to meet QSCI requirements.
tjitterrosc
—400
ps
Variation over temperature –40
C to 105 C4
4 See Figure 22. The power supply VDD must be greater than or equal to 2.6 V. Below 2.6 V, the maximum variation
over the whole temperature and whole voltage range from 1.8 V to 2.6 V will be +/-16%.
–3.0 to +2.0
%
Variation over temperature 0
C to 105 C5
5 This data is only applied to devices with temperature range from –40
C to 105 C.
–2.0 to +2.0
%
Variation over temperature –40
C to 125 C4
–3.5 to +3.0
%
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