Datasheet

Electrical Characteristics
i.MX 6Dual/6Quad Automotive and Infotainment Applications Processors, Rev. 6, 11/2018
NXP Semiconductors 37
4.4.5 MLB PLL
The MediaLB PLL is necessary in the MediaLB 6-Pin implementation to phase align the internal and
external clock edges, effectively tuning out the delay of the differential clock receiver and is also
responsible for generating the higher speed internal clock, when the internal-to-external clock ratio is
not 1:1.
4.4.6 Arm PLL
4.5 On-Chip Oscillators
4.5.1 OSC24M
This block implements an amplifier that when combined with a suitable quartz crystal and external load
capacitors implements an oscillator. The oscillator is powered from NVCC_PLL_OUT.
The system crystal oscillator consists of a Pierce-type structure running off the digital supply. A straight
forward biased-inverter implementation is used.
4.5.2 OSC32K
This block implements an amplifier that when combined with a suitable quartz crystal and external load
capacitors implements a low power oscillator. It also implements a power mux such that it can be powered
from either a ~3 V backup battery (VDD_SNVS_IN) or VDD_HIGH_IN such as the oscillator consumes
power from VDD_HIGH_IN when that supply is available and transitions to the back up battery when
VDD_HIGH_IN is lost.
In addition, if the clock monitor determines that the OSC32K is not present, then the source of the 32 kHz
clock will automatically switch to the internal ring oscillator.
Table 18. MLB PLL Electrical Parameters
Parameter Value
Lock time <1.5 ms
Table 19. Arm PLL Electrical Parameters
Parameter Value
Clock output range 650 MHz~1.3 GHz
Reference clock 24 MHz
Lock time <2250 reference cycles