BLE121LR DATA SHEET Sunday, 08 June 2014 Version 1.
Copyright © 2000-2014 Bluegiga Technologies All rights reserved. Bluegiga Technologies assumes no responsibility for any errors which may appear in this manual. Furthermore, Bluegiga Technologies reserves the right to alter the hardware, software, and/or specifications detailed here at any time without notice and does not make any commitment to update the information contained here. Bluegiga’s products are not authorized for use as critical components in life support devices or systems.
VERSION HISTORY Version Comment 1.1 First release 1.11 Standard gain mode option for the receiver added. Figure 22 corrected 1.
TABLE OF CONTENTS 1 BLE121LR Product numbering ......................................................................................................................6 2 Pinout and Terminal Description ...................................................................................................................7 2.1 2.1.1 I/O Configurations ........................................................................................................................ 10 2.1.2 Reserved I/O’s .............
BLE121LR Bluetooth® Smart Module DESCRIPTION KEY FEATURES: BLE121LR is a Bluetooth Smart Long Range module targeted for Bluetooth Smart applications where the best possible RF performance and range are required. At +8 dBm TX power and -98 dBm sensitivity BLE121LR has best-in-class RF performance and can provide Bluetooth Smart connectivity up to 450 meters. BLE121LR integrates all features required for a Bluetooth Smart application: Bluetooth radio, software stack and GATT based profiles.
1 BLE121LR Product numbering Available products and product codes Product code Description BLE121LR-A-M256K BLE121LR with an embedded chip antenna and with 256k internal flash Bluegiga Technologies Oy Page 6 of 31
2 Pinout and Terminal Description Figure 1: BLE121LR Pin Number Pin Name Pad Type Description 1-3, 14, 15, 22 31-36 GND GND GND 13 AVDD Supply voltage 23 DVDD Supply voltage 7 Reset Reset Active low reset Table 1: Supply and RF Terminal Descriptions Pin Number Pin Name Pad Type Description 6 P0_0 I/O Configurable Input/Output. See Table 4: Peripheral I/O Pin Mapping 5 P0_1 I/O Configurable Input/Output.
9 P0_4 I/O Configurable Input/Output. See Table 4: Peripheral I/O Pin Mapping 10 P0_5 I/O Configurable Input/Output. See Table 4: Peripheral I/O Pin Mapping 11 P0_6 I/O Configurable Input/Output. See Table 4: Peripheral I/O Pin Mapping 12 P0_7 I/O Configurable Input/Output. See Table 4: Peripheral I/O Pin Mapping 30 P1_2 I/O Configurable Input/Output. See Table 4: Peripheral I/O Pin Mapping 29 P1_3 I/O Configurable Input/Output.
PERIPHERAL / FUNCTION ADC USART 0 SPI (** USART 0 UART USART 1 SPI (** USART 1 UART TIMER 1 TIMER 3 TIMER 4 P0 7 6 5 4 3 2 1 0 A7 A6 A5 A4 A3 A2 A1 A0 C Alt.1 P1 7 6 4 3 2 MO MI C SS 1 0 2 P2 1 HARDWARE.XML Example (* 0 SS MO MI
2.1 I/O Ports 2.1.1 I/O Configurations Each I/O port can be configured as an input or output. When configured as input, each I/O port can also be configured with internal pull-up, pull-down or tri-state. Pull-down or pull-up can only be configured to whole port, not individual pins. Unused I/O pins should have defined level and not be floating. See the BLE Configuration Guide for more information about the configuration. During reset the I/O pins are configured as inputs with pull-ups.
3 Electrical Characteristics 3.1 Absolute Maximum Ratings Note: These are absolute maximum ratings beyond which the module can be permanently damaged. These are not maximum operating conditions. The maximum recommended operating conditions are in the Table 7. Rating Min Max Unit Storage Temperature -40 +85 °C AVDD, DVDD -0.3 3.9 V Other Terminal Volatages VSS-0.4 VDD+0.4 V Table 6: Absolute Maximum Ratings 3.
3.4 Current Consumption Power mode hardware.xml Transmit Min Typ Max Unit 25 mA 36 mA 38 mA 28 mA 33 mA Power mode 1 2.7 mA Power mode 2 1.3 µA Power mode 3 0.
RX peak 28 mA TX peak 36 mA 16.7mA/div 1ms/div Figure 4: Typical current consumption profile while advertising 3.5 RF Characteristics Rating Min Typ Transmit power 8 Transmit power variation within BT band 1 Transmit power variation within the temperature range Sensitivity (Default, high gain mode, PER 30.8%) Sensitivity (standard gain mode, PER 30.8%) (* Max Unit dBm 1.8 dB +/-1.5 dB -98 dBm -92 dBm *) Standard gain mode can be set using an API command.
Figure 6: Typical transmit power as a function of temperature Figure 7: BLE121LR transmit power as a function of supply voltage Bluegiga Technologies Oy Page 14 of 31
Figure 8: BLE121LR TX power as a function of the setting in the HW configuration file (Example: ) Figure 9: Radiation pattern of BLE121LR when mounted to the DKBLE Bluegiga Technologies Oy Page 15 of 31
Figure 10: Radiation pattern of BLE121LR when mounted to the DKBLE Figure 11: Radiation pattern of BLE121LR when mounted to the DKBLE Bluegiga Technologies Oy Page 16 of 31
Figure 12: Footprint of BLE121LR (top view) Physical Dimensions of BLE121LR 8.4 mm 8.4 mm 3.9 mm 3.9 mm 13.7 mm 13.7mm 4.8 mm 4.8 mm 14.7 mm 14.7mm 4 PINOUT AND DIMENSIONS OF BLE121LR Physical Dimensions 6.8 mm 6.8 mm 13.0 mm 13.0 mm Figure 13: Physical dimensions (top view) 1.9 mm 1.9 mm 1.8 mm 1.8 mm 1.8 mm 1.
Figure 15: Recommended land pattern for BLE121LR-A Bluegiga Technologies Oy Page 18 of 31
5 Power-On Reset and Brownout Detector BLE121LR includes a power-on reset (POR), providing correct initialization during device power on. It also includes a brownout detector (BOD) operating on the regulated 1.8-V digital power supply only. The BOD protects the memory contents during supply voltage variations which cause the regulated 1.8-V power to drop below the minimum level required by digital logic, flash memory, and SRAM.
6 Design Guidelines 6.1 General Design Guidelines BLE121LR can be used directly with a coin cell battery. Due to relatively high internal resistance of a coin cell battery it is recommended to place a 100uF capacitor in parallel with the battery. The internal resistance of a coin cell battery is initially in the range of 10 ohms but the resistance increases rapidly as the capacity is used.
– Make sure that the bias trace does not cross separated GND regions (D AGND) so that the path for the return current is cut. If this is not possibl not separate GND regions but keep one solid GND plane. – Keep the trace as short as possible arrangement will make sure that any return current follows the forward current as close as possible and any loops are minimized.
Figure 20: Poor layouts for BLE121LR Bluegiga Technologies Oy Page 22 of 31
7 Soldering Recommendations BLE121LR is compatible with industrial standard reflow profile for Pb-free solders. The reflow profile used is dependent on the thermal mass of the entire populated PCB, heat transfer efficiency of the oven and particular type of solder paste used. Consult the datasheet of particular solder paste for profile configurations.
8 Block diagram BLE121LR is based on TI’s CC2541 chip. Embedded 32 MHz and 32.678 kHz crystals are used for clock generation. Matched balun and low pass filter provide optimal radio performance with extremely low spurious emissions. 32 MHz XTAL 32.768 kHz XTAL Clock 2V – 3.
addressing mode, source and destination pointers, and transfer count) is configured with DMA descriptors that can be located anywhere in memory. Many of the hardware peripherals (AES core, flash controller, USARTs, timers, ADC interface, etc.) can be used with the DMA controller for efficient operation by performing data transfers between a single SFR or XREG address and flash/SRAM. Each CC2541 contains a unique 48-bit IEEE address that can be used as the public device address for a Bluetooth device.
2 operation. I C support is compliant with the NXP I2C specification version 2.1 and supports standard mode (up to 100 kbps) and fast mode (up to 400 kbps). In addition, 7-bit device addressing modes are supported, as well as master and slave modes.. The ultralow-power analog comparator enables applications to wake up from PM2 or PM3 based on an analog signal. Both inputs are brought out to pins; the reference voltage must be provided externally.
9 Certifications BLE121LR is compliant to the following specifications. 9.1 Bluetooth TBA 9.2 FCC and IC This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
IMPORTANT NOTE: In the event that the above condition can not be met (for certain configurations or colocation with another transmitter), then the FCC and Industry Canada authorizations are no longer considered valid and the FCC ID and IC Certification Number can not be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC and Industry Canada authorization.
mettre en conformité avec d’éventuelles exigences complémentaires lorsque le module est installé (exemple : émissions provenant d’appareils numériques, exigences vis-à-vis de périphériques informatiques, etc.
9.3 CE TBA 9.4 MIC Japan TBA 9.5 KCC (Korea) TBA .
10 Contact Information Sales: sales@bluegiga.com Technical support: http://www.bluegiga.com/support Orders: orders@bluegiga.com WWW: www.bluegiga.com Head Office / Finland: Phone: +358-9-4355 060 Fax: +358-9-4355 0660 Sinikalliontie 5A 02630 ESPOO FINLAND Postal address / Finland: P.O. BOX 120 02631 ESPOO FINLAND Sales Office / USA: Phone: +1 770 291 2181 Fax: +1 770 291 2183 Bluegiga Technologies, Inc.
