mcimx50 Freescale Semiconductor, Inc, mcimx50 Datasheet - Page 46

• Manufacturer Part Number: mcimx50
• Description: I.mx50 Applications Processors For Consumer Products
• Manufacturer: Freescale Semiconductor, Inc

Electrical Characteristics
4.6.3
The input to clock amplifier (CAMP) is internally ac-coupled allowing direct interface to a square wave or
sinusoidal frequency source. No external series capacitors are required.
Table 35
4.6.4
Table 36
46
Reference clock frequency range
Reference clock frequency range after
pre-divider
Output clock frequency range (dpdck_2)
Pre-division factor
Multiplication factor integer part
Multiplication factor numerator
Multiplication factor denominator
Output duty cycle
1
2
Input frequency
VIL (for square wave input)
VIH (for square wave input)
Sinusoidal input amplitude
Output duty cycle
VCC is the supply voltage of CAMP.
This value of the sinusoidal input is determined during characterization.
CC5
ID
shows the electrical parameters of CAMP.
shows the electrical parameters of digital phase-locked loop (DPLL).
Clock Amplifier Parameters (CKIH)
DPLL Electrical Parameters
Parameter
Duration of WDOG_RST_B Assertion
CKIL is approximately 32 kHz. T
30 μs.
2
Parameter
i.MX50 Applications Processors for Consumer Products, Rev. 0
3
2
1
Table 35. CAMP Electrical Parameters (CKIH)
Table 34. WDOG_RST_B Timing Parameters
Table 36. DPLL Electrical Parameters
Parameter
Should be less than denominator
Test Conditions/Remarks
(VCC
0.4
Min
CKIL
1
NOTE
8.0
45
0
– 0.25)
—
—
—
—
—
—
—
2
is one period or approximately
Typ
—
—
—
—
50
–67108862
48.5
Min
300
10
10
1
5
1
Min
1
VDD
Max
40.0
0.3
55
3
Typ
50
—
—
—
—
—
—
—
Freescale Semiconductor
67108862
67108863
Max
1025
—
Max
51.5
100
40
16
15
MHz
Vp-p
Unit
%
V
V
T
Unit
MHz
MHz
MHz
Unit
CKIL
—
—
—
—
%