Electrical Characteristics
i.MX53xA Automotive and Infotainment Applications Processors, Rev. 3
Freescale Semiconductor
21
TVDAC_DHVDD7
TVE digital and analog power supply, TVE-to-DAC
level shifter supply, cable detector supply, analog
power supply to RGB channel
2.69
2.75
2.91
V
For GPIO use only, when TVE is not in use
1.65
1.8 or
2.775
3.1
V
NVCC_SRTC_POW
SRTC Core and slow I/O Supply (GPIO)8
1.25
1.3
1.35
V
NVCC_RESET
LVIO
1.65
1.8 or
2.775
3.1
V
USB_H1_VDDA25
USB_OTG_VDDA25
NVCC_XTAL
USB_PHY analog supply, oscillator amplifier analog
supply9
2.25
2.5
2.75
V
USB_H1_VDDA33
USB_OTG_VDDA33
USB PHY I/O analog supply
3.0
3.3
3.6
V
VBUS
for details. Note that this is not a power supply.
——
—
VDD_REG10
Power supply input for the integrated linear
regulators
2.37
2.5
2.63
V
VP
SATA PHY core power supply
1.25
1.3
1.35
V
VPH
SATA PHY I/O supply voltage
2.25
2.5
2.75
V
TJ
Junction Temperature
–40
10511
125
oC
1 Voltage at the package power supply contact must be maintained between the minimum and maximum voltages. The design
must allow for supply tolerances and system voltage drops.
2 The nominal values for the supplies indicate the target setpoint for a tolerance no tighter than ± 50 mV. Use of supplies with a
tighter tolerance allows reduction of the setpoint with commensurate power savings.
3 VDDA and VDDAL1 can be driven by the VDD_DIG_PLL internal regulator using external connections. When operating in this
configuration, the regulator is still operating at the default 1.2 V, as bootup start. During bootup initialization, software should
increase this regulator voltage to match VCC (1.3 V nominal) in order to reduce internal leakage current.
4 By default, VDD_DIG_PLL is driven from internal on-die 1.2 V linear regulator (LDO). In this case, there is no need driving this
supply externally. LDO output to VDD_DIG_PLL should be configured by software after power-up to 1.3 V output. A bypass
capacitor of minimal value 22
μF should be connected to this pad in any case whether it is driven internally or externally. Use
of the on-chip LDO is preferred. See i.MX53 System Development User’s Guide.
5 By default, the VDD_ANA_PLL is driven from internal on-die 1.8 V linear regulator (LDO). In this case there is no need driving
this supply externally. A bypass capacitor of minimal value 22
μF should be connected to this pad in any case whether it is
driven internally or externally. Use of the on-chip LDO is preferred. See i.MX53 System Development User’s Guide.
6 After fuses are programmed, Freescale strongly recommends the best practice of reading the fuses to verify that they are
written correctly. In Read mode, VDD_FUSE should be floated or grounded. Tying VDD_FUSE to a positive supply (3.0 V–3.3
V) increases the possibility of inadvertently blowing fuses and is not recommended in read mode.
7 If not using TVE module or other pads in this power domain for the product, the TVDAC_DHVDD and TVDAC_AHVDDRGB
can remain floating.
8 GPIO pad operational at low frequency
9 The analog supplies should be isolated in the application design. Use of series inductors is recommended.
10 VDD_REG is power supply input for the integrated linear regulators of VDD_ANA_PLL and VDD_DIG_PLL when they are
configured to the internal supply option. VDDR_REG still has to be tied to 2.5 V supply when VDD_ANA_PLL and
VDD_DIG_PLL are configured for external power supply mode although in this case it is not used as supply source.
Table 6. i.MX53xA Operating Ranges (continued)
Symbol
Parameter
Minimum1 Nominal2 Maximum1
Unit