MCIMX31L FREESCALE [Freescale Semiconductor, Inc], MCIMX31L Datasheet - Page 82

• Manufacturer Part Number: MCIMX31L
• Description: Multimedia Applications Processors
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Electrical Characteristics
4.3.8
The three PLL’s of the MX31/MX31L (MCU, USB, and Serial PLL) are all based on same DPLL design.
The characteristics provided herein apply to all of them, except where noted explicitly. The PLL
characteristics are provided based on measurements done for both sources—external clock source (CKIH),
and FPM (Frequency Pre-Multiplier) source.
4.3.8.1
Table 30
82
CKIH reference frequency
CKIL referencer frequency (FPM
enable mode)
Predivision factor
PLL reference frequency range
after Predivider
Maximum allowed reference clock
phase noise.
Frequency lock time
(FOL mode or non-integer MF)
Phase lock time
PLL Power supply voltage
Single PLL current consumption
Maximum allowed PLL supply
voltage ripple
Maximum allowed PLL supply
voltage ripple
Maximum allowed PLL supply
voltage ripple
PLL output clock phase jitter
PLL output clock phase jitter
CS10
CS11
CS9
ID
lists the DPLL specification.
Parameter
DPLL Electrical Specifications
CSPIx_DI Setup Time
CSPIx_DI Hold Time
CSPIx_DRYN Setup Time
Electrical Specifications
Table 29. CSPI Interface Timing Parameters (continued)
Parameter
i.MX31/i.MX31L Advance Information, Rev. 1.4
Min
1.4
10
10
10
1
–
–
–
–
–
–
–
–
Table 30. DPLL Specifications
32; 32.768,
Preliminary
38.4
Typ
–
–
–
–
–
–
–
–
–
–
–
–
-
Symbol
t
t
t
Smiso
Hmiso
SDRY
±
Max
100
398
100
420
1.6
4.4
5.2
16
35
25
20
25
–
100
MHz
MHz
MHz
Min
Unit
mA
mV
mV
mV
µs
ns
ns
5
5
5
µs
µs
V
F
F
F
Measured on CKO pin
Measured on CKO pin
In addition to the frequency
Cycles of divided reference
modulation
modulation
modulation
Freescale Semiconductor
Max
Comments
–
–
–
< 50 kHz
< 300 kHz
< 300 kHz
clock.
–
–
–
–
–
–
–
Units
ns
ns
ns