2APPJ2102154167100AMA3B2EVB

Apollo3 Blue Plus EVB Quick Start Guide QS_A3P_1p00Page 1 2019 Ambiq Micro, Inc. All rights reserved. Apollo3 Blue Plus EVB Board Revision 1.0 Quick Start Guide Doc. ID: QS_A3P_1p00 Document Revision 1.0 December 2019 Apollo3 Blue Plus EVB Quick Start Guide QS_A3P_1p00Page 2 2019 Ambiq Micro, Inc. All rights reserved. Table of Content Introduction.................................................................................................................5 Document Revision History.........................................................................................5 Overview of the Apollo3 Blue Plus EVB......................................................................6 Debug Interface ..........................................................................................................8 Software Development Tools....................................................................................10 Power Supply Options and Measuring Current.........................................................11 FTDI Interface...........................................................................................................14 Apollo3 Blue Plus EVB Quick Start Guide QS_A3P_1p00Page 3 2019 Ambiq Micro, Inc. All rights reserved. List of Figures Apollo3 Blue Plus EVB, Revision 1.0..........................................................................6 Apollo3 Blue Plus EVB Parts Location........................................................................6 Apollo3 Blue Plus EVB’s Cortex DEBUG IN Header (J1)...........................................8 Apollo3 Blue Plus EVB’s DEBUG OUT Header (J2)...................................................9 Apollo3 Blue Plus EVB’s DEBUG OUT LED (D3).......................................................9 Voltage Selection on Header P19.............................................................................11 Header P19 Configured for 3.3V Operation - No Current Measurement..................12 Header P19 Configured for 3.3V Operation - With Current Measurement ...............12 Solder Bridge SB1 ....................................................................................................13 Apollo3 Blue Plus EVB Quick Start Guide QS_A3P_1p00Page 4 2019 Ambiq Micro, Inc. All rights reserved. List of Tables Document Revision History.........................................................................................5 Jumper Configuration for Power Selections..............................................................11 Apollo3 Blue Plus EVB Quick Start Guide QS_A3P_1p00Page 5 2019 Ambiq Micro, Inc. All rights reserved. 1. Introduction This document provides guidance in setting up the Apollo3 Blue Plus Evaluation Board (EVB), part number AMA3B2EVB, revision 1.0, to get started executing code examples, measuring power consumption in various configurations, and beginning software development. 2. Document Revision History Rev #DateDescription 1.0 December 2019Document initial public release Table 1: Document Revision History Apollo3 Blue Plus EVB Quick Start Guide QS_A3P_1p00Page 6 2019 Ambiq Micro, Inc. All rights reserved. 3. Overview of the Apollo3 Blue Plus EVB The Apollo3 Blue Plus EVB features Arduino-compatible headers and an integrated J-Link debugger: Figure 1. Apollo3 Blue Plus EVB, Revision 1.0 Figure 2. Apollo3 Blue Plus EVB Parts Location Apollo3 Blue Plus EVB Quick Start Guide QS_A3P_1p00Page 7 2019 Ambiq Micro, Inc. All rights reserved. The EVB has these additional features: ▪ Low power reference design ▪ Apollo3 Blue Plus MCU in the BGA package (AMA3B2KK-KBR) ▪ Multiple power/clock options ▪ Micro USB Type C connector for power/download/debug ▪ On-board PCB (MIFA) antenna ▪ FTDI USB-to-SPI adapter/interface ▪ RF switch/connector (J1 - Murata MM8430-2610RA1) for BLE PHY testingSegger J-Link debugger ▪ Debugger-in port ▪ Debugger-out port with connection-indication LED ▪ Five user-controlled LEDs ▪ Three push buttons for application use, plus a reset push button ▪ Power slide switch with LED power indicator ▪ Five 8-12 pin Arduino-style headers for pin/power access to shield board(s) ▪ Multiple test points for power measurements ▪ CE Mark and RoHS compliant Caution: The EVB has components loaded on the back of the board. Care should be taken to not damage these components. Rubber feet have been applied to the bottom of the board to prevent direct contact between the components and a desk surface. 3.1 Secure Boot on the Apollo3 Blue Plus MCU Apollo3 Blue Plus MCU parts from the Ambiq Micro factory are preprogrammed with a Secure Bootloader and an uninitialized Customer InfoSpace, referred to as INFO0. Initial provisioning of the part would include programming a valid INFO0 and programming the main firmware image in the flash. The Apollo3 Blue Plus EVB is shipped with the INFO0 configuration preprogrammed with optimal settings for the EVB layout. For your reference, the following settings are programmed into INFO0 on the Apollo3 Blue Plus MCU resident on the EVB: ▪ Simo Buck is enabled, which provides lowest Apollo3 Plus power consumption in both active and sleep modes. ▪ Secure Bootloader (SBL) interface is configured to UART using GPIO22 and GPIO23, which allows secure boot to be performed over the J-Link COM interface of the EVB. ▪ SBL override pin is configured to GPIO16 which is BTN1 on the EVB. ▪ All Flash and Debugger protection features are disabled. For information on changing the INFO0 settings as well as using the Secure Bootloader, please refer to the Apollo3 Blue Getting Started Guide, which can be found in the Ambiq Micro SDK documentation and example scripts located in the \tools\apollo3_blue_scripts folder. This folder contains a number of python scripts to demonstrate generation of INFO0 settings, customer main images, and the creation of images for the Wired Update protocol over UART. Apollo3 Blue Plus EVB Quick Start Guide QS_A3P_1p00Page 8 2019 Ambiq Micro, Inc. All rights reserved. 4. Deb…

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Annex No.: BL-SZ19C0664-AW-2 3 / 4 TOP VIEW OF EUT BOTTOM VIEW OF EUT Annex No.: BL-SZ19C0664-AW-2 4 / 4 Accessory-USB Cable p

Label: Mode PIN: AMA3B2EVB Product Name: AMA3B2EVB FCC ID: 2APPJ2102154167100 Label location:

Annex No.: BL-SZ19C0664-AW-2 1 / 4 EUT EXTERNAL PHOTOS FRONT VIEW OF EUT REAR VIEW OF EUT PCB Antenna RF Chip Annex No.: BL-SZ19C0664-AW-2 2 / 4 LEFT SIDE VIEW OF EUT c9 RIGHT SIDE OF EUT

version01 AmbiqMicro,Inc. DeclarationconcerningAntennaSpecification Itisherebydeclaredthattheproduct ModelNo.:AMA3B2EVB FCCID:2APPJ2102154167100 fulfillstherequirementinFCCtestrelatingtotheantennatype. ThedevicespecifiedaboveconfirmstotheFCCrecommendationsforinternalantennatype(s) describedbelow: ModelNo.ofantenna: N/A Typeofantenna:PCBAntenna Gainoftheantenna:0dBi Frequencyrange:2402-2480MHz Themountingoftheantennaisfixedtotheradiomoduleandnootherantennashouldbeused. Companyname: AmbiqMicro,Inc. Address:6500RiverPlaceBlvd.Building7,Suite200Austin,TX78730,USA City:AustinTexas ZIP/Postalcode:78730 Country:UnitedStates Place:AustinTexasDate:2020-03-12 Signature:

RF Exposure Evaluation for FCC ID: 2APPJ2102154167100 Refer user manual this device is a AMA3B2EVB, and this device was designed used in Mobile devices that the minimum distance between human’s body is 20cm. Based on the 47CFR 2.1091, this device belongs to Mobile device. The definition of the category as following: Mobile Derives: CFR Title 47 §2.1091(b) (b) For purposes of this section, a mobile device is defined as a transmitting device designed to be used in other than fixed locations and to generally be used in such a way that a separation distance of at least 20 centimeters is normally maintained between the transmitter’s radiating structure(s) and the body of the user or nearby persons. FCC KDB 447498 D01 General RF Exposure Guidance v06 Limit Devices operating in standalone mobile exposure conditions may contain a single transmitter or multiple transmitters that do not transmit simultaneously. A minimum test separation distance ≥ 20 cm is required between the antenna and radiating structures of the device and nearby persons to apply mobile device exposure limits. The distance must be fully supported by the operating and installation configurations of the transmitter and its antenna(s), according to the source-based time-averaged maximum power requirements of § 2.1091(d)(2). In cases where cable losses or other attenuations are applied to determine compliance, the most conservative operating configurations and exposure conditions must be evaluated. The minimum test separation distance required for a device to comply with mobile exposure conditions must be clearly identified in the installation and operating instructions, for all installation and exposure conditions, to enable users and installers to comply with RF exposure requirements. For mobile devices that have the potential to operate in portable device exposure conditions, similar to the configurations described in § 2.1091(d)(4), a KDB inquiry is required to determine the SAR test requirements for demonstrating compliance. When the categorical exclusion provision of § 2.1091(c) applies, the minimum test separation distance may be estimated, when applicable, by simple calculations according to plane-wave equivalent conditions, to ensure the transmitter and its antenna(s) can operate in manners that meet or exceed the estimated distance. The source-based time-averaged maximum radiated power, according to the maximum antenna gain, must be applied to calculate the field strength and power density required to establish the minimum test separation distance. When the estimated test separation distance becomes overly conservative and does not support compliance, MPE measurement or computational modeling may be used to determine the required minimum separation distance. According to FCC Part 1.1307, systems operating under the provisions of this section shall be operated in a manner the ensures that the public is not exposed to radio frequency energy level in excess of the commission’s guidelines. Limits for General Population/ Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength(E)(V/m) Magnetic Field Strength (H)(A/m) Power Density (S)(mW/cm 2 ) 0.3-1.34 614 1.63 (100)* 1.34-30 824/f 2.19/f (180/f2)* 30-300 27.5 0.073 0.2 300-1500 f/1500 1500-100,000 1.0 MPE calculation formula Where: S = power density P = output power (mW) G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = Separation distance between radiator and human body (cm) Test data BLUETOOTH Mode GFSK (BLE) Low Channel Middle Channel High Channel Peak Power (dBm) 3.23 3.08 2.90 Note: This report listed the worst case peak power value, please refer to RF test report for more details. Turn-up power Mode Range (dBm) Bluetooth 2.00-3.50 Test result Evolution mode Maximum peak output power （dBm） Antenna Gain (typical) (dBi): To t a l Power (mw) Distance (cm) Limit of Power Density (mW/cm²) Power Density (mW/cm²) Verdict Bluetooth 3.50 0 2.24 20 1 4.46*10 -4 Pass Note: 1. The AMA3B2EVB work frequency range used is 2400 MHz ~ 2483.5 MHz, the result close to the limit by the above formula. 2. More power list please refer to RF test report. Conclusion: RF exposure Evaluation Results: Compliance

Report No.: BL-SZ19C0664-602 2 / 51 Revision History Version Issue Date Revisions Content Rev. 01 Feb. 25, 2020 Initial Issue Rev. 02 Mar. 13, 2020 Added a statement on page 41. TABLE OF CONTENTS 1 ADMINISTRATIVE DATA (GENERAL INFORMATION) .......................................................................... 5 1.1 Identification of the Testing Laboratory ....................................................................................... 5 1.2 Identification of the Responsible Testing Location ...................................................................... 5 1.3 Laboratory Condition ................................................................................................................... 5 1.4 Announce .................................................................................................................................... 5 2 PRODUCT INFORMATION ...................................................................................................................... 6 2.1 Applicant Information ................................................................................................................... 6 2.2 Manufacturer Information ............................................................................................................ 6 2.3 Factory Information ..................................................................................................................... 6 2.4 General Description for Equipment under Test (EUT) ................................................................ 6 2.5 Technical Information .................................................................................................................. 7 2.6 Additional Instructions ................................................................................................................. 8 3 SUMMARY OF TEST RESULTS .............................................................................................................. 9 3.1 Test Standards ............................................................................................................................ 9 3.2 Verdict ......................................................................................................................................... 9 4 GENERAL TEST CONFIGURATIONS ................................................................................................... 10 4.1 Test Environments .................................................................................................................... 10 4.2 Test Equipment List ................................................................................................................... 10 4.3 Measurement Uncertainty ......................................................................................................... 11 4.4 Description of Test Setup .......................................................................................................... 12 4.4.1 For Antenna Port Test ............................................................................................................... 12 4.4.2 For AC Power Supply Port Test ................................................................................................ 12 4.4.3 For Radiated Test (Below 30 MHz) ........................................................................................... 13 4.4.4 For Radiated Test (30 MHz-1 GHz) .......................................................................................... 13 4.4.5 For Radiated Test (Above 1 GHz) ............................................................................................. 14 4.5 Measurement Results Explanation Example ............................................................................. 15 4.5.1 For conducted test items: .......................................................................................................... 15 Report No.: BL-SZ19C0664-602 3 / 51 4.5.2 For radiated band edges and spurious emission test: ............................................................... 15 5 TEST ITEMS ........................................................................................................................................... 16 5.1 Antenna Requirements .............................................................................................................. 16 5.1.1 Relevant Standards ................................................................................................................... 16 5.1.2 Antenna Anti-Replacement Construction .................................................................................. 16 5.1.3 Antenna Gain ............................................................................................................................ 16 5.2 Output Power ............................................................................................................................ 17 5.2.1 Test Limit ................................................................................................................................... 17 5.2.2 Test Setup ................................................................................................................................. 17 5.2.3 Test Procedure .......................................................................................................................... 17 5.2.4 Test Result ................................................................................................................................ 18 5.3 Occupied Bandwidth ................................................................................................................. 19 5.3.1 Limit ........................................................................................................................................... 19 5.3.2 Test Setup ................................................................................................................................. 19 5.3…

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Annex No.: BL-SZ19C0664-AR-2 TEST SETUP PHOTOS 1 Radiated Test Photo Below 30 MHz 30 MHz-1 GHz Annex No.: BL-SZ19C0664-AR-2 Close-Up Above 1GHz Annex No.: BL-SZ19C0664-AR-2 Close-Up 2 Conducted Emissions Test Photo 1 Annex No.: BL-SZ19C0664-AR-2 Test Photo 2 3 Conducted Test Photo Conducted Test-BLE