AM652X datasheet(287/299 Pages) TI1

287 / 299 page

Device

VDDA_3P3_IOLDO_WKUP

VDDSHV0_WKUP

VDDSHV1_WKUP

VDDSHV2_WKUP

VDDA_3P3_IOLDO0

VDDA_3P3_IOLDO1

VDDSHV7

I/O Bias LDO

VDDA_POR_WKUP

VDDSHV0

VDDSHV1

VDDSHV2

VDDSHV3

VDDSHV4

VDDSHV5

VDDSHV6

I/O Bias LDO

VDDS1

VDDS2

VDDS4

VDDS0

VDDS5

VDDS7

VDDS8

VDDS3

CAP_VDDA_1P8_IOLDO_WKUP

CAP_VDDA_1P8_IOLDO0

CAP_VDDA_1P8_IOLDO1

Wakeup

Domain

Main

Domain

SPRSP08 DECOUPLING CAPS_01

VDDS2_WKUP

VDDS0_WKUP

VDDS1_WKUP

VDDS6

VDDSHV8

287

AM6548, AM6528, AM6546

AM6526, AM6527

www.ti.com

SPRSP08E – NOVEMBER 2017 – REVISED OCTOBER 2018

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Product Folder Links: AM6548 AM6528 AM6546 AM6526 AM6527

Applications, Implementation, and Layout

(2) In this Figure, the VDD_WKUP0 and VDD_WKUP1 supplies are sourced through the WKUP LDO, not an external supply.

(3) Refer to Section 7.6.1, LVCMOS External Capacitor Connections for details about external capacitor connections when using the SDIO

LDO.

7.6.1

LVCMOS External Capacitor Connections

Each VDDSHV[0-8] and VDDSHV[0:2]_WKUP can be configured as 1.8 V or 3.3 V. Figure 7-6 through

Figure 7-8 illustrate different system configurations for the dual-voltage I/O supplies.

VDDSHV[0-8] and VDDSHV[0:2]_WKUP are the dual-voltage LVCMOS I/O supplies, while VDDS[0-8] are

the dual-voltage LVCMOS I/O bias supplies. If any of the VDDSHV[0-8] or VDDSHV[0:2]_WKUP are

configured for 3.3 V operation, the corresponding VDDS[0-8] should be sourced from the internal I/O Bias

LDO. When any of the VDDSHV[0-8] or VDDSHV[0:2]_WKUP are configured for 1.8 V operation, both

VDDS[0-8] and VDDSHV[0-8] or VDDSHV[0:2]_WKUP should be supplied from the same source.

Two I/O Bias LDOs are integrated on this device to share load current. The recommended load sharing is

as follows:

•

IOLDO0 : VDDSHV0, VDDSHV1, VDDSHV2, VDDSHV5, VDDSHV7, VDDSHV8

•

IOLDO1 : VDDSHV3, VDDSHV4, VDDSHV6

Figure 7-6 shows all VDDSHV[0-8] supplies configured for 3.3V operation.

Figure 7-6. All VDDSHV[0-8] supplies configured for 3.3 V operation

Figure 7-7 shows all VDDSHV[0-8] supplies configured for 1.8 V operation.

AM652X Folha de dados(PDF) 287 Page - Texas Instruments

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