SAMB11-MR210CA/MR510CA Ultra Low Power BLE 4.1 Module DATASHEET Description The Atmel® SAMB11-MR210CA is an ultra-low power Bluetooth® SMART (BLE 4.1) module with Integrated MCU, Transceiver, Modem, MAC, PA, TR Switch, and Power Management Unit (PMU). It is a standalone Cortex®-M0 applications processor with embedded Flash memory and BLE connectivity. The qualified Bluetooth Smart protocol stack is stored in dedicated ROM, the firmware includes L2CAP service layer protocols, Security Manager, Attribute protocol (ATT), Generic Attribute Profile (GATT), and the Generic Access Profile (GAP). Additionally, application profiles such as Proximity, Thermometer, Heart Rate, Blood Pressure, and many others are supported and included in the protocol stack. The module contains all circuitry required including a ceramic high gain antenna, 26MHz crystal, and PMU circuitry. The customer simply needs to place the module on the board, provide power and a 32KHz Real Time Clock or crystal. Features Complies with Bluetooth V4.1, ETSI EN 300 328 and EN 300 440 Class 2, FCC CFR47 Part 15, ARIB STD-T66, and TELEC Bluetooth Certification – QD ID Controller (see declaration D028678) – QD ID Host (see declaration D028679) 2.4GHz transceiver and Modem – -95dBm/-93dBm programmable receiver sensitivity – -20 to +3dBm programmable TX output power – Integrated T/R switch – Single wire antenna connection ARM® Cortex®-M0 32-bit processor – Single wire Debug (SWD) interface – 4-channel DMA controller – Brown out detector and Power On Reset – Watch Dog Timer Memory – 128kB embedded RAM (96kB available for application) – 128kB embedded ROM – 256kB Flash Hardware Security Accelerators – AES-128 – SHA-256 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 Peripherals – 23 digital and three wake-up GPIO with 96kΩ Internal Pullup resistors, four Mixed Signal GPIO – 2x SPI (Master/Slave) – 2x I2C (Master/Slave) – 2x UART – 1x SPI Flash – 3-axis quadrature decoder – 4x Pulse Width Modulation (PWM), three General Purpose Timers, and one Wake up Timer – Four channel 11-bit ADC Clock – Integrated 26MHz oscillator – 26MHz crystal oscillator – Fully integrated sleep oscillator Ultra-low power – Less than 1.15µA (8K RAM retention and RTC running) – 3.2mA peak TX current (0dBm, 3.6V) – 5.0mA peak RX current (3.6V, -95dBm sensitivity) Integrated Power management – 1.8 - 4.3V input range for PMU – 2.3 - 3.6V input range for I/O (limited by Flash memory) – Fully integrated Buck DC-DC converter 2 SAMB11-MR210CA/MR510CA [DATASHEET] 2 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 Table of Contents 1 Ordering Information ................................................................................................... 4 2 Package Information ................................................................................................... 4 3 Block Diagram ............................................................................................................. 5 4 Pin Out Information ..................................................................................................... 6 4.1 4.2 4.3 5 Electrical Specifications ............................................................................................. 8 5.1 5.2 5.3 5.4 5.5 6 Application Schematic ......................................................................................................................... 13 Applications Schematic with 32.768kHz Crystal .................................................................................. 14 Application Schematic BOM ................................................................................................................ 15 Placement and Routing Guidelines .......................................................................... 16 8.1 9 Device States ...................................................................................................................................... 11 Receiver Performance......................................................................................................................... 11 Transmitter Performance ..................................................................................................................... 12 Application Schematic .............................................................................................. 13 7.1 7.2 7.3 8 Absolute Maximum Ratings ................................................................................................................... 8 Recommended Operating Conditions ................................................................................................... 9 Restrictions for Power States ................................................................................................................ 9 Power-up Sequence .............................................................................................................................. 9 RTC Pins ............................................................................................................................................. 10 Characteristics........................................................................................................... 11 6.1 6.2 6.3 7 Pin Assignment ..................................................................................................................................... 6 Pin Description ...................................................................................................................................... 6 Module Outline Drawing ........................................................................................................................ 8 Power and Ground .............................................................................................................................. 16 Interferers................................................................................................................... 16 10 Reflow Profile Information ........................................................................................ 17 10.1 Storage Conditions .............................................................................................................................. 17 10.1.1 Moisture Barrier Bag Before Opened ..................................................................................... 17 10.1.2 Moisture Barrier Bag Open ..................................................................................................... 17 10.2 Stencil Design ..................................................................................................................................... 17 10.3 Baking Conditions ............................................................................................................................... 17 10.4 Soldering and Reflow Condition .......................................................................................................... 17 10.4.1 Reflow Oven ........................................................................................................................... 17 11 Reference Documentation and Support................................................................... 19 11.1 Reference Documents......................................................................................................................... 19 12 Certifications ............................................................................................................. 20 12.1 Agency Compliance ............................................................................................................................ 20 13 Errata .......................................................................................................................... 21 14 Document Revision History ...................................................................................... 22 SAMB11-MR210CA/MR510CA [DATASHEET] Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 3 3 1 Ordering Information Ordering code Package Description ATSAMB11-MR210CA 22 x 15mm Chip Antenna ATSAMB11-MR510CA 22 x 15mm Chip Antenna The ATSAMB11-MR510CA module is identical to ATSAMB11-MR210CA regarding the module footprint and functionality. The ATSAMB11-MR510CA also includes the capability of hardware encryption. 2 Package Information Table 2-1. ATSAMB11-MR210/MR510 Module Information (1) Parameter Package Size Value Units 22.88 X 15.36 mm Pad Count 40 Total Thickness ~2.1 Pad Pitch .9002 Pad Width .500 mm Exposed Pad size Note: 4 1. 4.4 x 4.4 For details, see Package Drawing in Section 4.3. SAMB11-MR210CA/MR510CA [DATASHEET] 4 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 Tolerance 3 Block Diagram Figure 3-1 shows the block diagram of the SAMB11-MR210CA/MR510 module. Figure 3-1. Block Diagram VDDIO VBAT Antenna Chip_En AO_GPIO_0/1/2 LP_GPIO SAMB11 BLE 4.1 SOC Matching GPIO_MS1/MS2/MS3/MS4 26MHz From 32.768kHz crystal or clock SAMB11-MR210CA/MR510CA [DATASHEET] Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 5 5 4 Pin Out Information 4.1 Pin Assignment Figure 4-1 shows the module top view and pin numbering. Figure 4-1. 4.2 Pin Description Table 4-1. # 6 Top View Pin Description Name Type Description Notes 1 Ground Power Ground Pin. Connect to PCB ground 2 LP_GPIO_0 I/O Used for Single Wire Debug Clock Debug interface pin. Connect to a header or test point. 3 LP_GPIO_1 I/O Used for Single Wire Debug Data Debug interface pin. Connect to a header or test point. 4 VBAT Power Power Supply Pin for the on chip Power Management Unit (PMU). Connect to a 1.8V – 4.3V power supply. 5 LP_GPIO_2 I/O General Purpose I/O Default function is Host UART RXD 6 LP_GPIO_3 I/O General Purpose I/O Default function is Host UART TXD 7 LP_GPIO_4 I/O General Purpose I/O Default function is Host UART CTS 8 LP_GPIO_22 I/O General Purpose I/O 9 LP_GPIO_23 I/O General Purpose I/O SAMB11-MR210CA/MR510CA [DATASHEET] 6 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 # Name Type Description Notes 10 LP_GPIO_5 I/O General Purpose I/O Default function is Host UART RTS 11 LP_GPIO_6 I/O General Purpose I/O Default function is Debug UART RXD 12 LP_GPIO_7 I/O General Purpose I/O Default function is Debug UART TXD 13 LP_GPIO_8 I/O General Purpose I/O Default function is I2C_SDA 14 Ground Power Ground Pin. Connect to PCB ground 15 LP_GPIO_9 I/O General Purpose I/O Default function is I2C_SCL 16 LP_GPIO_10 I/O General Purpose I/O Default function is SPI_SCK 17 LP_GPIO_11 I/O General Purpose I/O Default function is SPI_MOSI 18 LP_GPIO_12 I/O General Purpose I/O Default function is SPI_SSN 19 LP_GPIO_13 I/O General Purpose I/O Default function is SPI_MISO 20 GPIO_MS1 I/O Mixed Signal I/O Configurable to be a GPIO or ADC input 21 GPIO_MS2 I/O Mixed Signal I/O Configurable to be a GPIO or ADC input 22 Chip_En Control Chip Enable. A high level turns on the On Chip PMU and enables operation of the device. Low disables the device and turns off the PMU. Control this pin with a host GPIO. If not used, tie to VDDIO. 23 GPIO_MS3 I/O Mixed Signal I/O Configurable to be a GPIO or ADC input 24 GPIO_MS4 I/O Mixed Signal I/O Configurable to be a GPIO or ADC input 25 RTC_CLKP Positive Pin for Real Time Clock Crystal Connect to a 32KHz Crystal 26 Ground 27 RTC_CLKN 28 AO_GPIO_0 I/O Always on GPIO_0. Can be used to wake up the device from sleep. Can also be used as a general purpose I/O. 29 AO_GPIO_1 I/O Always on GPIO_0. Can be used to wake up the device from sleep. Can also be used as a general purpose I/O. 30 AO_GPIO_2 I/O Always on GPIO_0. Can be used to wake up the device from sleep. Can also be used as a general purpose I/O. 31 LP_GPIO_14 I/O General Purpose I/O Default function is Debug I2C_SDA 32 VDDIO Power Power Supply Pin for the I/O pins. Connect to a 2.3V – 3.6V power supply. I/O supply can be less than or equal to VBAT 33 LP_GPIO_15 I/O General Purpose I/O Default function is Debug I2C_SCL 34 LP_GPIO_16 I/O General Purpose I/O 35 LP_GPIO_17 I/O General Purpose I/O 36 LP_GPIO_18 I/O General Purpose I/O 37 LP_GPIO_19 I/O General Purpose I/O 38 LP_GPIO_20 I/O General Purpose I/O 39 Ground Power Ground Pin. Connect to PCB ground. 40 Paddle Power Center Ground Paddle Power Ground Pin. Connect to PCB ground. Negative Pin for Real Time Clock Crystal Connect to a 32KHz Crystal Connect to inner PCB ground plane with an array of vias SAMB11-MR210CA/MR510CA [DATASHEET] Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 7 7 4.3 Module Outline Drawing Figure 4-2 shows the bottom view of the module and the module dimensions. All dimensions are in millimeters. Figure 4-2. Module Dimensions (millimeters) P39 P37 P38 P35 P36 P33 P34 P31 P32 P29 P30 P27 P1 P28 TOP VIEW P1 P3 P2 P4 P5 P7 P6 P9 P8 P10 P11 P13 P39 P12 NOTE: THIS PAD MUST BE SOLDERED TO GND. SHIELD BOTTOM VIEW SHIELD PCB SIDE VIEW 5 Electrical Specifications 5.1 Absolute Maximum Ratings Table 5-1. SAMB11-MR210CA Absolute Maximum Ratings Symbol Characteristic Min. Max. Unit VDDIO I/O Supply Voltage -0.3 4.6 V VBAT Battery Supply Voltage -0.3 5.0 V Digital Input Voltage -0.3 VDDIO V VAIN (2) Analog Input Voltage -0.3 1.5 V VESDHBM (3) ESD Human Body Model -1000, -2000 (see notes below) +1000, +2000 (see notes below) V TA Storage Temperature -65 150 ºC 125 ºC VIN (1) Junction Temperature Note: 8 1. 2. 3. VIN corresponds to all the digital pins. VAIN corresponds to the following analog pins: RFIO. For VESDHBM, each pin is classified as Class 1, or Class 2, or both: The Class 1 pins include all the pins (both analog and digital) The Class 2 pins include all digital pins only VESDHBM is ±1kV for Class1 pins. VESDHBM is ±2kV for Class2 pins SAMB11-MR210CA/MR510CA [DATASHEET] 8 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 5.2 Recommended Operating Conditions Table 5-2. SAMB11-MR210CA Recommended Operating Conditions Symbol Characteristic VDDIO I/O Supply Voltage Low Range VBAT Battery Supply Voltage 5.3 1. Typ. Max. Units 2.3 3.3 4.3 V 3.6 4.3 V 85 ºC 1.8 Operating Temperature Note: Min. (1) -40 VBAT supply must be greater than or equal to VDDIO. Restrictions for Power States When VDDIO is off (either disconnected or at ground potential), a voltage must not be applied to the device pins. This is because each pin contains an ESD diode from the pin to the VDDIO supply. This diode will turn on when a voltage higher than one diode-drop is supplied to the pin. This in turn will try to power up the part through the VDDIO supply. If a voltage must be applied to the signal pads while the chip is in a low power state, the VDDIO supply must be on. Similarly, to prevent the pin-to-ground diode from turning on, do not apply a voltage that is more than 0.3V below ground to any pin. 5.4 Power-up Sequence The power-up/down sequence for ATSAMB1-MR210A is shown in Figure 5-1. The timing parameters are provided in Table 5-3. Figure 5-1. Power-up Sequence VBATT t BIO VDDIO t IOCE CHIP_EN Table 5-3. Parameter tBIO Power-Up Sequence Timing Min. Max. Units 0 Description Notes VBAT rise to VDDIO rise VBAT and VDDIO can rise simultaneously or can be tied together VDDIO rise to CHIP_EN rise CHIP_EN must not rise before VDDIO. CHIP_EN must be driven high or low, not left floating ms tIOCE 0 SAMB11-MR210CA/MR510CA [DATASHEET] Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 9 9 5.5 RTC Pins Module pins 25 and 27 (RTC_CLKP and RTC_CLKN, respectively) are used for a 32.768kHz crystal. To be compliant with the BLE specifications for connection events, the frequency accuracy of this clock has to be within ±500ppm. Because of the high accuracy of the 32.768kHz crystal oscillator clock (±25ppm), the power consumption can be minimized by leaving radio circuits in low power sleep mode for as long as possible until they need to wake up for the next connection timed event. The block diagram in Figure 5-2(a) shows how the internal low frequency Crystal Oscillator (XO) is connected to the external crystal. Typically, the crystal should be chosen to have a load capacitance of 7pF to minimize the oscillator current. The SAMB11 device has switchable on chip capacitance that can be used to adjust the total load the crystal sees to meet its load capacitance specification. Refer to the SAMB11 datasheet for more information. Alternatively, if an external 32.768kHz clock is available, it can be used to drive the RTC_CLKP pin instead of using a crystal. The XO has 5.625F internal capacitance on the RTC_CLKP pin. To bypass the crystal oscillator an external signal capable of driving 5.625pF can be applied to the RTC_CLK_P terminal as shown in Figure 5-2(b). This signal must be 1.2V maximum. RTC_CLK_N must be left unconnected when driving an external source into RTC_CLK_P. Figure 5-2. SAMB11 XO Connections to Low Frequency Crystal Oscillator (a) Crystal oscillator is used Table 5-4. SAMB11-MR210CA 32.768kHz External Clock Specification Parameter Min. Oscillation frequency Typ. Max. 32.768 Unit. Comments kHz Must be able to drive 6pF load @ desired frequency VinH 0.7 1.2 V High level input voltage VinL 0 0.2 V Low level input voltage -250 +250 ppm Stability – Temperature 10 (b) Crystal oscillator is bypassed SAMB11-MR210CA/MR510CA [DATASHEET] 1 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 0 6 Characteristics 6.1 Device States Table 6-1. SAMB11-MR210CA Device States Device State CHIP_EN VDDIO IVBAT (typical) IVDDIO (typical) BLE_On_Transmit On On 3.0mA 0.2µA VBAT = 3.6V BLE_On_Receive On On 4.2mA 0.2µA VBAT = 3.6V Ultra Low Power On On 1.25µA 0.1µA With 8KB retention memory, BLE Timer and RTC enabled GND On <0.05µA <0.05µA Power_Down 6.2 Remark Chip Enable Off Receiver Performance Table 6-2. SAMB11-MR210CA Receiver Performance Unit Min. Typ.(1) Max. Frequency MHz 2,402 - 2,480 Sensitivity (max. RX Gain setting) dBm -95 Maximum Receive Signal Level dBm 0 CCI dB 13 ACI (N±1) dB 0 N+2 Blocker (Image) dB -20 N-2 Blocker dB -30 N+3 Blocker (Adj. Image) dB -32 N-3 Blocker dB -44 N±4 or greater dB Parameter -45 Intermod (N+3, N+6) dBm -33 OOB (2GHz<f<2.399GHz) dBm -10 OOB (f<2GHz) dBm -10 Note: 1. Expected values for production silicon. All measurements performed at 3.6V VBAT and 25°C, with tests following Bluetooth V4.1 standard tests. SAMB11-MR210CA/MR510CA [DATASHEET] 11 1 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 1 6.3 Transmitter Performance Table 6-3. SAMB11-MR210CA Transmitter Performance Parameter Unit Min. Typ. Max. Frequency MHz 2,402 2,480 Output Power Range dBm -20 3.5 Output Power dBm -55 In-band Spurious (N±2) dBm -40 In-band Spurious (N±3) dBm -50 2nd Harmonic Pout dBm -45 Frequency Dev kHz 250 All measurements performed at 3.6V VBAT and 25°C, with tests following Bluetooth V4.1 standard tests. Average advertising current for connectable beacon with full payload (37-byte packet) is targeted to be 9.7µA. The average advertising current is based on automatic advertising from the ROM with RTC 32kHz, BLE sleep timers, and 8KB memory retention. IDRAM1 and IDRAM2 are OFF. External Peripherals and debug clocks are turned OFF. VBAT is set to 3.6V. This advertising current will be enabled on a future SDK release. For current SDK based advertising current, see errata Chapter 13. 12 SAMB11-MR210CA/MR510CA [DATASHEET] 1 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 2 7 Application Schematic The SAMB11-MR210/MR510CA modules are fully self-contained. To use the module, just provide VBAT and VDDIO supplies. Figure 7-1 and Figure 7-2 shows a typical design using the SAMB11-MR210/MR510CA modules. The schematic shows several host interfaces: UART, I2C, and SPI as well as an input to the ADC on the GPIO_MS1 pin. A user can choose the interface(s) required for their application. If a 32.768kHz Real Time Clock is not available in the system, a 32.768KHz crystal can be used. Section 7.2 shows a design using a crystal for the Real Time Clock. The crystal should be specified with a load capacitance, CL=7pF and a total frequency error of 200ppm. Table 7-1 shows the BOM for the application schematics. Note: The UART RTS and UART CTS are used for hardware flow control; they MUST be connected to the host MCU UART and enabled for the UART interface to be functional. Module design information such as module schematics can be obtained under an NDA from Atmel. Application Schematic Figure 7-1. Application Schematic VBAT C1 10uF VDDIO U1 SAMB11-MR210CA UART_RxD UART_TxD UART_CTS UART_RTS 1 2 3 4 5 6 7 8 9 10 11 12 13 40 GND1 LP_GPIO_0 LP_GPIO_1 VBAT LP_GPIO_2 LP_GPIO_3 LP_GPIO_4 LP_GPIO_22 LP_GPIO_23 LP_GPIO_5 LP_GPIO_6 LP_GPIO_7 LP_GPIO_8 Paddle GND4 LP_GPIO_20 LP_GPIO_19 LP_GPIO_18 LP_GPIO_17 LP_GPIO_16 LP_GPIO_15 VDDIO LP_GPIO_14 AO_GPIO_2 AO_GPIO_1 AO_GPIO_0 RTC_CLKN GND2 LP_GPIO_9 LP_GPIO_10 LP_GPIO_11 LP_GPIO_12 LP_GPIO_13 GPIO_MS1 GPIO_MS2 CHIP_EN GPIO_MS3 GPIO_MS4 RTC_CLKP GND3 Test Points for Atmel Use SWCLK TP1 SWDIO TP2 14 15 16 17 18 19 20 21 22 23 24 25 26 7.1 39 38 37 36 35 34 33 32 31 30 29 28 27 IRQn/Wake If Wake f unction is not used, connect AO_GPIO_0 to ground 32.768 kHz (1.2V Max.) Chip_EN GPIO_MS1 ADC_IN SPI_MISO SPI_SSN SPI_MOSI SPI_SCK SAMB11-MR210CA/MR510CA [DATASHEET] 13 1 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 3 7.2 Applications Schematic with 32.768kHz Crystal Figure 7-2. Application Schematic with 32.768kHz Crystal VBAT C1 10uF VDDIO U1 SAMB11-MR210CA UART_RxD UART_TxD UART_CTS UART_RTS 1 2 3 4 5 6 7 8 9 10 11 12 13 Paddle GND4 LP_GPIO_20 LP_GPIO_19 LP_GPIO_18 LP_GPIO_17 LP_GPIO_16 LP_GPIO_15 VDDIO LP_GPIO_14 AO_GPIO_2 AO_GPIO_1 AO_GPIO_0 RTC_CLKN 14 15 16 17 18 19 20 21 22 23 24 25 26 40 GND1 LP_GPIO_0 LP_GPIO_1 VBAT LP_GPIO_2 LP_GPIO_3 LP_GPIO_4 LP_GPIO_22 LP_GPIO_23 LP_GPIO_5 LP_GPIO_6 LP_GPIO_7 LP_GPIO_8 GND2 LP_GPIO_9 LP_GPIO_10 LP_GPIO_11 LP_GPIO_12 LP_GPIO_13 GPIO_MS1 GPIO_MS2 CHIP_EN GPIO_MS3 GPIO_MS4 RTC_CLKP GND3 Test Points for Atmel Use SWCLK TP1 SWDIO TP2 39 38 37 36 35 34 33 32 31 30 29 28 27 If Wake f unction is not used, connect AO_GPIO_0 to ground IRQn/Wake Y1 32.768kHz Y 1 should be specif ied f or CL=7pF Chip_EN GPIO_MS1 ADC_IN SPI_MISO SPI_SSN SPI_MOSI SPI_SCK 14 SAMB11-MR210CA/MR510CA [DATASHEET] 1 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 4 7.3 Application Schematic BOM Table 7-1. Application Schematic BOM Item Qty. Ref. Value 1 1 C1 2 2 TP1, TP2 3 1 U1 SAMB11-MR210CA 4 1 Y1 32.768KHz 10µF Description CAP,CER,10µF,20%,X5R,0603,6.3V Manufacturer Part # Panasonic ECI-1VB0I106M Module, BLE, SAMB11 Atmel SAMB11-MR210CA XTAL, 32.768KHz, ±20ppm, -40 to +85°C, CL=7pF, 2 lead, SM ECS ECS-.327-7-34B-TR Test point SAMB11-MR210CA/MR510CA [DATASHEET] 15 1 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 5 8 Placement and Routing Guidelines It is critical to follow the recommendations listed below to achieve the best RF performance: 8.1 The board should have a solid ground plane. The center ground pad of the device must be solidly connected to the ground plane by using a 3x3 grid of vias. Each ground pin of the module should have a ground via placed either in the pad or right next to the pad going down to the ground plane. When the module is placed on the motherboard, a provision for the antenna must be made. There should be nothing under the portion of the module which contains the antenna. This means the antenna should not be placed directly on top of the motherboard PCB. This can be accomplished by, for example, placing the module at the edge of the board such that the module edge with the antenna extends beyond the main board edge by 6.5mm. Alternatively, a cut out in the motherboard can be provided under the antenna. The cutout should be at least 22mm x 6.5mm. Ground vias spaced 2.5mm apart should be placed all around the perimeter of the cutout. No large components should be placed near the antenna. Keep away from antenna, as far as possible, large metal objects to avoid electromagnetic field blocking Do not enclose the antenna within a metal shield Keep any components which may radiate noise or signals within the 2.4GHz – 2.5GHz frequency band far away from the antenna or better yet, shield those components. Any noise radiated from the main board in this frequency band will degrade the sensitivity of the module. Power and Ground Dedicate one layer as a ground plane. Make sure that this ground plane does not get broken up by routes. Power can route on all layers except the ground layer. Power supply routes should be heavy copper fill planes to insure the lowest possible inductance. The power pins of the module should have a via directly to the power plane as close to the pin as possible. Decoupling capacitors should have a via right next to the capacitor pin and this via should go directly down to the power plane – that is to say, the capacitor should not route to the power plane through a long trace. The ground side of the decoupling capacitor should have a via right next to the pad which goes directly down to the ground plane. Each decoupling capacitor should have its own via directly to the ground plane and directly to the power plane right next to the pad. The decoupling capacitors should be placed as close to the pin that it is filtering as possible. 9 Interferers One of the biggest problems with RF receivers is poor performance due to interferers on the board radiating noise into the antenna or coupling into the RF traces going to input LNA. Care must be taken to make sure that there is no noisy circuitry placed anywhere near the antenna or the RF traces. All noise generating circuits should also be shielded so they do not radiate noise that is picked up by the antenna. 16 SAMB11-MR210CA/MR510CA [DATASHEET] 1 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 6 10 Reflow Profile Information This section provides guidelines for reflow processes in getting the Atmel module soldered to the customer’s design. 10.1 Storage Conditions 10.1.1 Moisture Barrier Bag Before Opened A moisture barrier bag must be stored in a temperature of less than 30°C with humidity under 85% RH. The calculated shelf life for the dry-packed product shall be 12 months from the date the bag is sealed. 10.1.2 Moisture Barrier Bag Open Humidity indicator cards must be blue, <30%. 10.2 Stencil Design The recommended stencil is laser-cut, stainless-steel type with thickness of 100µm to 130µm and approximately a 1:1 ratio of stencil opening to pad dimension. To improve paste release, a positive taper with bottom opening 25µm larger than the top can be utilized. Local manufacturing experience may find other combinations of stencil thickness and aperture size to get good results. 10.3 Baking Conditions This module is rated at MSL level 3. After sealed bag is opened, no baking is required within 168 hours so long as the devices are held at ≤30°C/60% RH or stored at <10% RH. The module will require baking before mounting if: 10.4 The sealed bag has been open for >168 hours Humidity Indicator Card reads >10% SIPs need to be baked for 8 hours at 125°C Soldering and Reflow Condition 10.4.1 Reflow Oven It is strongly recommended that a reflow oven equipped with more heating zones and Nitrogen atmosphere be used for lead-free assembly. Nitrogen atmosphere has shown to improve the wet-ability and reduce temperature gradient across the board. It can also enhance the appearance of the solder joints by reducing the effects of oxidation. The following bullet items should also be observed in the reflow process: Some recommended pastes include NC-SMQ® 230 flux and Indalloy® 241 solder paste made up of 95.5 Sn/3.8 Ag/0.7 Cu or SENJU N705-GRN3360-K2-V Type 3, no clean paste. Allowable reflow soldering times: 2 times based on the following reflow soldering profile (see Figure 10-1). Temperature profile: Reflow soldering shall be done according to the following temperature profile (see Figure 10-1). Peak temperature: 250°C. SAMB11-MR210CA/MR510CA [DATASHEET] 17 1 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 7 Figure 10-1. 18 Solder Reflow Profile SAMB11-MR210CA/MR510CA [DATASHEET] 1 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 8 11 Reference Documentation and Support 11.1 Reference Documents Atmel offers a set of collateral documentation to ease integration and device ramp. The following table list documents available on Atmel web or integrated into development tools. Table 11-1. Reference Documents Title Content Datasheet This document SAMB11 SOC Preliminary Datasheet Data sheet for the SAMB11 SOC contained on this module SW Design Guide Integration guide with clear description of: High level Arch, overview on how to write a networking application, list all API, parameters and structures. Features of the device, SPI/handshake protocol between device and host MCU, with flow/sequence/state diagram, timing. SW Programmer guide Explain in details the flow chart and how to use each API to implement all generic use cases (e.g. start AP, start STA, provisioning, UDP, TCP, http, TLS, p2p, errors management, connection/transfer recovery mechanism/state diagram) - usage and sample application note For a complete listing of development-support tools and documentation, visit http://www.atmel.com/, or contact the nearest Atmel field representative. SAMB11-MR210CA/MR510CA [DATASHEET] 19 1 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 9 12 Certifications 12.1 Agency Compliance The ATSAMB11-MR210CA has been tested and certified to meet the compliance for the following agencies: Bluetooth 4.1 – The SAMB11-MR210 utilizes the ATBTLC1000 Bluetooth die for Bluetooth operation. Refer to these QD ID reference numbers for Bluetooth certifications. – QD ID Controller (see declaration D028678) – QD ID Host: (see declaration D028679) FCC – FCC ID: 2ADHKSAMB11 ETSI – EN 300 328 – EN 300 400 Class 2 ARIB – 20 CFR47 Part 15 STD-T66 TELEC SAMB11-MR210CA/MR510CA [DATASHEET] 2 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 0 13 Errata Issue: In the ATSAMB11 Datasheet, the measured advertisement current for the cases listed in Table 63 will be higher than what is reported. SDK5.0 does not resemble the same conditions where Table 6-3 has been measured. For example: The power and timing parameters in the SDK5.0 release have not been fully optimized to their final values IDRAM1 and IDRAM2 are always enabled/retained for ROM patches and application development SDK5.0 enables clocks to different peripheral blocks to allow easier application development Continuous access to the SWD debug interface is needed. Therefore, debug clocks cannot be turned OFF. A small sample measurement has been performed they show the following results: Measurement condition: 1-sec adverting interval 37 byte advertising payload Connectable beacon Advertising on 3 channels (37,38,39) VBAT and VDDIO are set to 3.3V Average advertising current: 13.65µA Average sleep current between beacons: 2.00µA With VBAT set to 3.6V, the average advertising current under the same conditions is 12.67µA. SAMB11-MR210CA/MR510CA [DATASHEET] 21 2 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 1 14 Document Revision History Doc Rev. Comments 02/2016 Some minor corrections in text and layout. 1. Added text referring to SAMB11-MR510CA devices. 2. Updated Module drawing in Figure 4-2. 3. Updated schematic information in Section 7 and added revised Application schematic figures to Figure 7-1 and Figure 7-2. 4. Revised Reflow Profile Section 10. 42498B 02/2016 1. Changed pins in Table 4-1 to add UART flow control. 2. Added UART flow control requirement in Chapter 7. 3. Updated Application Schematics in Chapter 7. 4. Added Agency certifications in Chapter 12. 5. Added full module drawing in Figure 4-2. 6. Revised Table 6-1 to remove footnote that is no longer applicable. 7. Added application Schematic BOM in Table 7-1. 8. Clearer reference schematic for SAMB11-MR210 in Figure 7.1. 9. Clearer BOM for SAMB11-MR210 in Figure 7-2. 10. Added reference schematic in Figure 7-3. 11. Added BOM for SAMB11-MR510 in Figure 7-4. 12. Added comment to Table 6-3. 13. Added Errata (Chapter 13). 42498A 09/2015 Initial document release. 42498C 22 Date SAMB11-MR210CA/MR510CA [DATASHEET] 2 Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016 2 Atmel Corporation 1600 Technology Drive, San Jose, CA 95110 USA T: (+1)(408) 441.0311 F: (+1)(408) 436.4200 │ www.atmel.com © 2016 Atmel Corporation. / Rev.: Atmel-42498C-SAMB11-MR210CA-MR510CA_Datasheet_02/2016. 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