Datasheet

ATBTLC1000 Hardware Design Guidelines – Ultra Low Power BLE 4.1 SoC [USER GUIDE]
Atmel-42537B-ATBTLC1000-Hardware-Design-Guidelines_UserGuide_102015
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Table of Contents
1 Reference Schematic ................................................................................................... 3
1.1 Schematic .............................................................................................................................................. 3
2 Notes on Interfacing to the ATBTLC1000 ................................................................... 5
2.1 Programmable Pull-up Resistors ........................................................................................................... 5
2.2 Using an External RTC .......................................................................................................................... 5
2.3 Restrictions for Power States ................................................................................................................ 7
2.4 Power-up Sequence .............................................................................................................................. 7
3 Placement and Routing Guidelines ............................................................................ 8
3.1 Power and Ground ................................................................................................................................ 8
3.2 RF Traces and Components ................................................................................................................. 8
3.3 Power Management Unit (PMU) ............................................................................................................ 9
3.4 Ground .............................................................................................................................................. 11
3.5 VDDIO .............................................................................................................................................. 12
3.6 LP_LDO_OUT ..................................................................................................................................... 12
3.7 Sensitive Routes ................................................................................................................................. 13
3.8 Supply Pins ......................................................................................................................................... 13
3.9 Additional Suggestions ........................................................................................................................ 14
4 Interferers ................................................................................................................... 15
5 Antenna ................................................................................................................... 15
6 Reference Documentation and Support ................................................................... 16
6.1 Reference Documents ......................................................................................................................... 16
7 ATMEL EVALUATION BOARD/KIT IMPORTANT NOTICE AND DISCLAIMER ........ 17
8 Revision History ........................................................................................................ 18