Datasheet

Specifications
MC56F825x/MC56F824x Digital Signal Controller, Rev. 3
Freescale Semiconductor 59
7.15 External Crystal or Resonator Requirement
7.16 Relaxation Oscillator Timing
Figure 18. Relaxation Oscillator Temperature Variation (Typical) After Trim
Table 31. Crystal or Resonator Requirement
Characteristic Symbol Min Typ Max Unit
Frequency of operation f
XOSC
4816 MHz
Table 32. Relaxation Oscillator Timing
Characteristic Symbol Minimum Typical Maximum Unit
Relaxation oscillator output frequency
1
Normal Mode
Standby Mode
1
Output frequency after factory trim.
f
op
—
8.05
400
—
MHz
kHz
Relaxation oscillator stabilization time
2
2
This is the time required from standby to normal mode transition.
t
roscs
—1 3ms
Cycle-to-cycle jitter. This is measured on the CLKO
signal (programmed prescaler_clock) over 264 clocks
3
3
J
A
is required to meet QSCI requirements.
t
jitterrosc
—400— ps
Variation over temperature –40°C to 150°C
4
4
See Figure 18.
— +1.5 to –1.5 +3.0 to –3.0 %
Variation over temperature 0°C to 105°C
4
— 0 to +1 +2.0 to –2.0 %
8.16
8.08
8
7.92
7.84
175-25-50 0 50 75 100 125 15025
Degrees C (Junction)
MHz