AMIC110 Datasheet, PDF (84/214 Pages) Texas Instruments – Sitara Processors

AMIC110
SPRS971A – AUGUST 2016 – REVISED SEPTEMBER 2016
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Table 5-14. Power-Supply Decoupling Capacitor Characteristics (continued)
C_VDDSHV5(6)
C_VDDSHV6(7)
PARAMETER
TYP
10.02
10.06
UNIT
μF
μF
(1) Not available on the ZCE package.
(2) Typical values consist of one capacitor of 10 μF and four capacitors of 10 nF.
(3) For more details on decoupling capacitor requirements for the DDR2, DDR3, DDR3L memory interface, see Section 7.7.2.2.2.6 and
Section 7.7.2.2.2.7 when using DDR2 memory devices, or Section 7.7.2.3.3.6 and Section 7.7.2.3.3.7 when using DDR3 or DDR3L
memory devices.
(4) VDDS_SRAM_CORE_BG supply powers an internal LDO for SRAM supplies. Inrush currents could cause voltage drop on the
VDDS_SRAM_CORE_BG supplies when the SRAM LDO is enabled after powering up VDDS_SRAM_CORE_BG terminals. A 10 µF is
recommended to be placed close to the terminal and routed with widest traces possible to minimize the voltage drop on
VDDS_SRAM_CORE_BG terminals.
(5) VDDS_SRAM_MPU_BB supply powers an internal LDO for SRAM supplies. Inrush currents could cause voltage drop on the
VDDS_SRAM_MPU_BB supplies when the SRAM LDO is enabled after powering up VDDS_SRAM_MPU_BB terminals. A 10 µF is
recommended to be placed close to the terminal and routed with widest traces possible to minimize the voltage drop on
VDDS_SRAM_MPU_BB terminals.
(6) Typical values consist of one capacitor of 10 μF and two capacitors of 10 nF.
(7) Typical values consist of one capacitor of 10 μF and six capacitors of 10 nF.
5.9.2 Output Capacitors
Internal low dropout output (LDO) regulators require external capacitors to stabilize their outputs. These
capacitors should be placed as close as possible to the respective terminals of the AMIC110 device.
Table 5-15 summarizes the LDO output capacitor recommendations.
Table 5-15. Output Capacitor Characteristics
C_{CAP_VDD_SRAM_CORE(1)}
C_{CAP_VDD_RTC(1)(2)}
C_{CAP_VDD_SRAM_MPU(1)}
C_{CAP_VBB_MPU(1)}
PARAMETER
TYP
UNIT
1
μF
1
μF
1
μF
1
μF
(1) LDO regulator outputs should not be used as a power source for any external components.
(2) The CAP_VDD_RTC terminal operates as an input to the RTC core voltage domain when the RTC_KLDO_ENn terminal is high.
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Specifications
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