AM3351 datasheet(94/252 Pages) TI1

94 / 252 page

AM3359, AM3358, AM3357, AM3356, AM3354, AM3352, AM3351

SPRS717J – OCTOBER 2011 – REVISED APRIL 2016

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Product Folder Links: AM3359 AM3358 AM3357 AM3356 AM3354 AM3352 AM3351

Specifications

(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 mDDR(LPDDR), DDR2, DDR3, DDR3L memory interface, see

Section 7.7.2.1.2.6 and Section 7.7.2.1.2.7 when using mDDR(LPDDR) memory devices, 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 AM335x device.

Table 5-15 summarizes the LDO output capacitor recommendations.

Table 5-15. Output Capacitor Characteristics

PARAMETER

TYP

UNIT

CCAP_VDD_SRAM_CORE

(1)

μF

CCAP_VDD_RTC

(1)(2)

μF

CCAP_VDD_SRAM_MPU

(1)

μF

CCAP_VBB_MPU

(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.

AM3351 Datasheet(PDF) 94 Page - Texas Instruments

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