MPU
PLL
PER
PLL
DDR
PLL
CORE
PLL
LCD
PLL
VDDS_PLL_MPU
VDDS_PLL_CORE_LCD
VDDA1P8V_USB0
VDDS_PLL_DDR
AM3359, AM3358, AM3357, AM3356, AM3354, AM3352
SPRS717H – OCTOBER 2011 – REVISED MAY 2015
6.1.4
Digital Phase-Locked Loop Power Supply Requirements
The digital phase-locked loop (DPLL) provides all interface clocks and functional clocks to the processor
of the AM335x device. The AM335x device integrates 5 different DPLLs—Core DPLL, Per DPLL, Display
DPLL, DDR DPLL, MPU DPLL.
shows the power supply connectivity implemented in the AM335x device.
provides
the power supply requirements for the DPLL.
Figure 6-8. DPLL Power Supply Connectivity
Table 6-1. DPLL Power Supply Requirements
SUPPLY NAME
DESCRIPTION
MIN NOM
MAX
UNIT
VDDA1P8V_USB0
Supply voltage range for USBPHY and PER DPLL, Analog, 1.8 V
1.71
1.8
1.89
V
Max peak-to-peak supply noise
50
mV (p-p)
VDDS_PLL_MPU
Supply voltage range for DPLL MPU, analog
1.71
1.8
1.89
V
Max peak-to-peak supply noise
50
mV (p-p)
VDDS_PLL_CORE_LCD
Supply voltage range for DPLL CORE and LCD, analog
1.71
1.8
1.89
V
Max peak-to-peak supply noise
50
mV (p-p)
VDDS_PLL_DDR
Supply voltage range for DPLL DDR, analog
1.71
1.8
1.89
V
Max peak-to-peak supply noise
50
mV (p-p)
106
Power and Clocking
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