 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| BLE121LR data sheet monday, 12 may 2014 versi on 1. 1
bluegiga technologies oy copyright ? 2000 - 2014 bluegiga technologies all rights reserved. bluegiga technologies assumes no responsibility for any errors which may appear in this manual. furthermore, bluegiga technol ogies 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. bluegigas products are not authorized for use as critical c omponents in life support devices or systems. the wrap is a registered trademark of bluegiga technologies the bluetooth trademark is owned by the bluetooth sig inc., usa and is licensed to bluegiga technologies. all other trademarks listed herein are owned by their respective owners. bluegiga technologies oy version history version comment 1. 1 first r elease bluegiga technologies oy table of contents 1 BLE121LR product numbering ................................ ................................ ................................ ...................... 6 2 pinout and terminal description ................................ ................................ ................................ ................... 7 2.1 i/o ports ................................ ................................ ................................ ................................ .............. 10 2.1.1 i/o configurations ................................ ................................ ................................ ........................ 10 2.1.2 reserved i/os ................................ ................................ ................................ ............................. 10 2.2 uart ................................ ................................ ................................ ................................ ................... 10 3 electrical characteristics ................................ ................................ ................................ ............................ 11 3.1 absolute maximum ratings ................................ ................................ ................................ ................ 11 3.2 recommended operating conditions ................................ ................................ ................................ . 11 3.3 dc characteristics ................................ ................................ ................................ .............................. 11 3.4 current consumption ................................ ................................ ................................ .......................... 12 3.5 rf characteristics ................................ ................................ ................................ ............................... 13 4 physical dimensions ................................ ................................ ................................ ................................ .. 17 5 power - on reset and brownout detector ................................ ................................ ................................ ... 19 6 design gui delines ................................ ................................ ................................ ................................ ...... 20 6.1 general design guidelines ................................ ................................ ................................ ................. 20 6.2 layout guide lines ................................ ................................ ................................ ............................. 20 6.3 BLE121LR - a layout guide ................................ ................................ ................................ ................. 21 7 soldering recommendati ons ................................ ................................ ................................ ..................... 23 8 block diagram ................................ ................................ ................................ ................................ ............. 24 9 certifications ................................ ................................ ................................ ................................ ............... 27 9.1 bluetooth ................................ ................................ ................................ ................................ ............. 27 9.2 fcc ................................ ................................ ................................ ................................ ..................... 27 9.3 ic ................................ ................................ ................................ ................................ ......................... 27 9.3.1 ic ................................ ................................ ................................ ................................ .................. 27 9.4 ce ................................ ................................ ................................ ................................ ....................... 28 9.5 mic japan ................................ ................................ ................................ ................................ ........... 28 9.6 kcc (korea) ................................ ................................ ................................ ................................ ........ 28 10 contact information ................................ ................................ ................................ ................................ . 29 bluegiga technologies oy BLE121LR bluetooth ? smart m odule description BLE121LR is a bluetooth smart long range module targeted for bluetoot h 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 bluetoot h smart connectivity up to 450 meters. BLE121LR integrates all fe atures required for a bluetoot h smart application: bluetoot h radio, software stack and gatt based profiles. and it can also host end user applications, which means no external micro controller is required in size, price or power constrained devices. ble121 l r bluetoot h smart module also has flexible hardware interfaces to connect to different peripherals or sensors. although BLE121LR bluetoot h smart long range module is target for applications requiring high rf performance, it is still has relatively low powe r consumption and can be power using a standard 3v coin cell batteries . applications: ? smart home accessories ? beacon devices ? health and fitness sensors ? medical sensors ? iphone and ipad accessories ? security and proximity tags key features: ? bluetooth v. 4.0 single mode compliant o m aster and slave modes o up to eight connections ? integrated bluetooth smart stack o gap, att and gatt o b luetooth smart profiles ? best - in - class rf performance o transmit power : +8 dbm o receiver sensitivity: - 98 dbm o range up to 450 meters ? low current consumption o transmit: 36 ma (+8 dbm) o receive: 33 ma ( - 98 dbm) o power mode 3: 0.5 ua ? flexible peripheral interfaces o uart and spi o i2c, pwm and gpio o 12 - bit adc ? host interfaces: o uart ? programmable 8051 processor for stand - alone operation o simple bluegiga bgscript tm scripting language for quick application development o bluegiga profile toolkit tm allowing the quick development of gatt based profiles ? dimensions: 14.7 x 13.0 x 1.8 mm ? bluetooth , ce, fcc, ic, south korea and japan qualified bluegiga technologies oy pa ge 6 of 29 1 BLE121LR product numbering available products and product codes product code description BLE121LR - a - m 256 k BLE121LR with an embedded chip antenna and with 256k internal flash bluegiga technologies oy pa ge 7 of 29 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 res e t active low reset table 1 : supply and rf terminal descriptions pin number pin n ame pad type description 6 p0_ 0 i/o confi gurable input/output. see table 4 : peripheral i/o pin ma p ping 5 p0_1 i/o configurable input/output. see table 4 : peripheral i/o pin ma p ping 4 p0_ 2 i/o configura ble input/output. see table 4 : peripheral i/o pin ma p ping 8 p0_3 i/o configurable input/output. see table 4 : peripheral i/o pin ma p ping bluegiga technologies oy pa ge 8 of 29 9 p0_4 i/o configurable input/output. see table 4 : peripheral i/o pin ma p ping 10 p0_5 i/o configurable input/output. see table 4 : peripheral i/o pin ma p ping 11 p0_6 i/o configurable input/output. see table 4 : peripheral i/o pin ma p ping 12 p0 _7 i/o configurable input/output. see table 4 : peripheral i/o pin ma p ping 30 p1_2 i/o configurable input/output. see table 4 : peripheral i/o pin ma p ping 29 p1_3 i/o configurable input/output. see table 4 : peripheral i/o pin ma p ping 28 p1_4 i/o configurable input/output. see table 4 : peripheral i/o pin ma p ping 27 p1_5 i/o configurable input/output. see table 4 : peripheral i/o pin ma p ping 17 p1_6 i/o configurable input/output. see table 4 : peripheral i/o pin ma p ping 19 p2_0 i/o configurable input/output. see table 4 : peripheral i/o pin ma p ping 20 p2_1 i/o configurable input/ output. see table 4 : peripheral i/o pin ma p ping 21 p2_2 i/o configurable input/output. see table 4 : peripheral i/o pin ma p ping table 2 : configurable i/o terminal s pin number pin name pad type description 24 scl i2c clock 25 sda i2c data 18 dcdc _cntrl output on / by - pass control for an external dcdc converter table 3 : non - configurable terminal s bluegiga technologies oy pa ge 9 of 29 *) refer to ble configuration guide fo r detailed settings **) ss is the slave select signal when BLE121LR is set as spi slave. when set as spi master, any available i/o can be used as chip select signal of BLE121LR note: pins configured as peripheral i/o signals do not have pull - up / - down capability table 4 : peripheral i/o pin ma p ping hardware.xml example (* 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 2 1 0 a7 a6 a5 a4 a3 a2 a1 a0 alt.1 c ss mo mi bluegiga technologies oy pa ge 11 of 29 3 electrical ch aracteristics 3.1 absolute maximum ratings note: these are absolute maximum rating s beyond which the module can be permanently damaged. these are not maximum operating conditions. the maximum recommended operati ng 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 3.2 recommended operating conditions rating min max u nit operationg temperature range - 40 +85 c avdd, dvdd (*,**,*** 2.0 3.6 v table 7 : recommended operating conditions *) all supply nets must have the same voltage * *) supply voltage noise should be less than 10mvpp . excessive no ise at the supply voltage will reduce the rf performance. ***) the supply voltage has an impact on the tx power , see figure 7 . 3.3 dc characteristics parameter test conditions min typ max unit logic - 0 input voltage 0.5 v logic - 1 input voltage dvdd =3v0 2.5 v logic - 0 input current input equals 0v - 50 50 na logic - 1 input current input equals vdd - 50 50 na i/o pin pull - up and pull - down resistors 20 k for detailed i/ o terminal characteristic and timings refer to the cc2 541 datasheet available in ( http://www.ti.com/lit/ds/symlink/cc2541.pdf ) table 8 : dc characteristic bluegiga technologies oy pa ge 12 of 29 3.4 current consumption power mode hardware.xml min typ max unit transmi t bluegiga technologies oy pa ge 13 of 29 figure 4 : typical current consumption profile while advertising 3.5 rf characteristics rating min typ max unit transmit power 8 dbm transmit power variation within bt band 1 1.8 db transmit power variation within the temperature range +/ - 1.5 db sensitivity (per 30.8%) - 98 dbm figure 5 : BLE121LR rf characteristics figure 6 : typical t ransmit power as a function of temperature 1ms/div 16.7ma/div tx peak 36 ma rx peak 28 ma bluegiga technologies oy pa ge 14 of 29 figure 7 : BLE121LR transmit power as a fu nction of supply voltage figure 8 : BLE121LR tx power as a function of the setting in the hw configurati on file (example: bluegiga technologies oy pa ge 15 of 29 figure 9 : radiation pattern of BLE121LR when mounted to the dk ble figure 10 : radiation pattern of BLE121LR when mounted to the dkble bluegiga technologies oy pa ge 16 of 29 figure 11 : radiation pattern of BLE121LR when mounted to the dkble bluegiga technologies oy pa ge 17 of 29 4 physical dimensions figure 12 : footprint of BLE121LR (top view) figure 13 : physical dimensions (top view) figure 14 : physical dimensions (side view) pinout and dimensions of BLE121LR physical dimensions of BLE121LR 14.7 mm 13.0 mm 4.8 mm 6 .8 mm 8.4 mm 13.7 mm 3.9 mm 1.8 mm 1.8 mm 1.9 mm physical dimensions of BLE121LR 14.7 mm 13.0 mm 4.8 mm 6 .8 mm 8.4 mm 13.7 mm 3.9 mm 1.8 mm 1.8 mm 1.9 mm bluegiga technologies oy pa ge 18 of 29 figure 15 : recommended land pattern for BLE121LR - a bluegiga technologies oy pa ge 19 of 29 5 power - on reset and brownout detector BLE121LR includes a power - on reset (por), providing correct initialization during de vice 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 leve l required by digital logic, flash memory, and sram. when power is initially applied, the por and bod hold the device in the reset state until the supply voltage rises above the power - on - reset and brownout voltage s. bluegiga technologies oy pa ge 20 of 29 6 design guidelines 6.1 general design guide lines 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 ini tially in the range of 10 ohms but the resistance increases rapidly as the capacity is used. basically the higher the value of the capacitor the higher is the effective capacity of the battery and thus the longer the life time for the application. the mini mum value for the capacitor depends on the end application and the maximum transmit power used. the leakage current of a 100 uf capacitor is in the range of 0.5 ua to 3 ua and generally ceramic capacitors have lower leakage current than tantalum or aluminum electrolytic capacitors. optionally tis tps62730 can be used to reduce the current consumption during tx/rx and data processing stages. t ps62730 is an ultra - low power dc/dc co nverter with by - pass mode and will reduce the current consumption during trans mission nominally by ~20% when using 3v coin cell battery. figure 16 : example schematic for BLE121LR with a coin cell battery , tps62730 dcdc converter and an i2c accelerometer 6.2 layout guide lines us e good layout practices to avoid excessive noise coupling to supply voltage traces or sensitive analog signal traces. if using overlapping ground planes use stitching vias separated by max 3 mm to avoid emission from the edges of the pcb. connect all the g nd pins directly to a solid gnd plane and make sure that there is a low impedance path for the return current following the signal and supply traces all the way from start to the end. a good practice is to dedicate one of the inner layers to a solid gnd p lane and one of the inner layers to supply voltage planes and traces and route all the signals on top and bottom layers of the pcb. this bluegiga technologies oy pa ge 21 of 29 arrangement will make sure that any return current follows the forward current as close as possible and any loops are m inimized. figure 17 : typical 4 - layer pcb construction figure 18 : use of stitching vias to avoid emissions from the edges of the pcb 6.3 BLE121LR - a layout guide for optimal performance of the antenna pla ce the module at the edge of the pcb as shown in the figure 19 . do not place any met al (traces, components, battery etc.) within the clearance area of the antenna. connect all the gnd pins directly to a solid gnd plane. place the gnd vias as close to the gnd pins as possible. use good layout practices to avoid any excessive noise coupling to signal line s or supply voltage lines. do not place plastic or any other dielectric material in touch with the antenna . figure 19 : recommended layout for BLE121LR - a layout ? supply voltage C if possible use solid power plane C make sure that solid gnd plane follows the traces all the way C do not route supply voltage traces across separated gnd regions so that the path for the return current is cut ? mic input C place lc filtering and dc coupling capacitors symmetrically as c lose to audio pins as possible C place mic biasing resistors symmetrically as close to microhone as possible. C make sure that the bias trace does not cross separated gnd regio ns (dgnd - > agnd) so that the path for the return current is cut. if this is not possible the do not separate gnd regions but keep one solid gnd plane. C keep the trace as short as possible signals gnd power signals recommended pcb layer configuration overlapping gnd layers without gnd stitching vias overlapping gnd layers with gnd stitching vias shielding the rf energy min 17mm min 17mm metal clearance area board edge bluegiga technologies oy pa ge 22 of 29 figure 20 : poor layouts for BLE121LR bluegiga technologies oy pa ge 23 of 29 7 soldering recommendations BLE121LR is compatible with industrial standard reflow profile for pb - free solders. the reflow profile used is depe ndent 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. bluegiga technologies will give following re commendations for soldering the module to ensure reliable solder joint and operation of the module after soldering. since the profile used is process and layout dependent, the optimum profile should be studied case by case. thus following recommendation sh ould be taken as a starting point guide. - refer to technical documentations of particular solder paste for profile configurations - avoid using more than one flow. - reliability of the solder joint and self - alignment of the component are dependent on the sold er volume. minimum of 150 ? m stencil thickness is recommended. - aperture size of the stencil should be 1:1 with the pad size. - a low residue, no clean solder paste should be used due to low mounted height of the component. figure 21 : reference reflow profile bluegiga technologies oy pa ge 24 of 29 8 block diagram BLE121LR is based on tis 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 emi ssions . figure 22 : simplified block diagram of BLE121LR cpu and memory the 8051 cpu core is a single - cycle 8051 - compatible core. it has three different memory access buses (sfr, data, and code/xdata), a debug interface, and an 18 - input extended interrupt unit. the memory arbiter is at the heart of the system, as it connects the cpu and dma controller with the physical memories and all peripherals through the sfr bus. the memory arbiter has four memory - access points, access of whic h can map to one of three physical memories: an sram, flash memory, and xreg/sfr registers. it is responsible for performing arbitration and sequencing between simultaneous memory accesses to the same physical memory. the sfr bus is a common bus that conne cts all hardware peripherals to the memory arbiter. the sfr bus also provides access to the radio registers in the radio register bank, even though these are indeed mapped into xdata memory space. the 8 - kb sram maps to the data memory space and to parts of the xdata memory spaces. the sram is an ultralow - power sram that retains its contents even when the digital part is powered off (power modes 2 and 3). the 256 kb flash block provides in - circuit programmable non - volatile program memory for the device, and maps into the code and xdata memory spaces. peripherals writing to the flash block is performed through a flash controller that allows page - wise erasure and 4 - bytewise programming. balun + lpf chip antenna i/o controller cc2541 i/o 32 mhz xtal 32.768 khz xtal clock debug interface 8051 cpu core and memory arbitrator voltage regulator sram flash analog comparator opamp adc irq controller dma usb usart 0 usart 1 timer 1 timer 2 timer 3 timer 4 radio arbiter radio registers link layer engine sram modulator demodulator synth receive transmit frequenc y synthetisi zer reset power - on reset 2v C 3.6v reset pa/lna bpf bluegiga technologies oy pa ge 25 of 29 a versatile five - channel dma controller is available in the system, access es memory using the xdata memory space, and thus has access to all physical memories. each channel (trigger, priority, transfer mode, addressing mode, source and destination pointers, and transfer count) is configured with dma descriptors that can be locat ed 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 flas h/sram. each cc2541 contains a unique 48 - bit ieee address that can be used as the public device address for a bluetooth device. designers are free to use this address, or provide their own, as described in the bluetooth spec i fication. the interrupt control ler services a total of 18 interrupt sources, divided into six interrupt groups, each of which is associated with one of four interrupt priorities. i/o and sleep timer interrupt requests are serviced even if the device is in a sleep mode (power modes 1 and 2) by bringing the cc254 1 back to the active mode. the debug interface implements a proprietary two - wire serial interface that is used for in - circuit debugging. through this debug interface, it is possible to erase or program the entire flash memory, cont rol which oscillators are enabled, stop and start execution of the user program, execute instructions on the 8051 core, set code breakpoints, and single - step through instructions in the code. using these techniques, it is possible to perform in - circuit deb ugging and external flash programming elegantly. the i/o controller is responsible for all general - purpose i/o pins. the cpu can configure whether peripheral modules control certain pins or whether they are under software control, and if so, whether each p in is configured as an input or output and if a pullup or pulldown resistor in the pad is connected. each peripheral that connects to the i/o pins can choose between two different i/o pin locations to ensure flexibility in various applications. the sleep t imer is an ultr a - low power timer that use s an external 32.768 - khz crystal oscillator . the sleep timer runs continuously in all operating modes except power mode 3. typical applications of this timer are as a real - time counter or as a wake - up timer to exit power modes 1 or 2. timer 1 is a 16 - bit timer with timer/counter/pwm functionality. it has a programmable prescaler, a 16 - bit period value, and five individually programmable counter/capture channels, each with a 16 - bit compare value. each of the counter/c apture channels can be used as a pwm output or to capture the timing of edges on input signals. it can also be configured in ir generation mode, where it counts timer 3 periods and the output is anded with the output of timer 3 to generate modulated consum er ir signals with minimal cpu interaction. timer 2 is a 40 - bit timer used by the bluetooth low energy stack. it has a 16 - bit counter with a configurable timer period and a 24 - bit overflow counter that can be used to keep track of the number of periods tha t have transpired. a 40 - bit capture register is also used to record the exact time at which a start - of - frame delimiter is received/transmitted or the exact time at which transmission ends. there are two 16 - bit timer - compare registers and two 24 - bit overflo w - compare registers that can be used to give exact timing for start of rx or tx to the radio or general interrupts. timer 3 and timer 4 are 8 - bit timers with timer/counter/pwm functionality. they have a programmable prescaler, an 8 - bit period value, and on e programmable counter channel with an 8 - bit compare value. each of the counter channels can be used as pwm output. usart 0 and usart 1 are each configurable as either an spi master/slave or a uart. they provide double buffering on both rx and tx and hardw are flow control and are thus well suited to high - throughput full - duplex applications. each usart has its own high - precision baud - rate generator, thus leaving the ordinary timers free for other uses. when configured as spi slaves, the usarts sample the inp ut signal using sck directly instead of using some oversampling scheme, and are thus well - suited for high data rates. the aes encryption/decryption core allows the user to encrypt and decrypt data using the aes algorithm with 128 - bit keys. the aes core als o supports ecb, cbc, cfb, ofb, ctr, and cbc - mac, as well as hardware support for ccm. the adc supports 7 to 12 bits of resolution with a corresponding range of bandwidths from 30 - khz to 4 - khz, respectively. dc and audio conversions with up to eight input c hannels (i/o controller pins) are possible. the inputs can be selected as single - ended or differential. the reference voltage can be internal, avdd, or a single - ended or differential external signal. the adc also has a temperature - sensor input channel. the adc can automate the process of periodic sampling or conversion over a sequence of channels. bluegiga technologies oy pa ge 26 of 29 the i 2 c module provides a digital peripheral connection with two pins and supports both master and slave operation. i 2 c support is compliant with the nxp i2c spec ification 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 wak e up from pm2 or pm3 based on an analog signal. both inputs are brought out to pins; the reference voltage must be provided externally. the comparator output is connected to the i/o controller interrupt detector and can be treated by the mcu as a regular i /o pin interrupt. rf front end rf front end includes balun , power amplifier, low noise amplifier, band pass filter , and a ceramic chip antenna with matching network . optimal matching combined with effective low pass filter provides extremely low in - band sp urious emissions and harmonics. bluegiga technologies oy pa ge 27 of 29 9 certifications BLE121LR is compliant to the following specifications. 9.1 bluetooth 9.2 fcc 9.3 ic 9.3.1 ic dclaration dic : . bluegiga technologies oy pa ge 28 of 29 9.4 c e 9.5 mic japan 9.6 kcc (korea) . bluegiga technologies oy pa ge 29 of 29 10 contact information sales: sales@bl uegiga.com technical support: http://www.bluegiga.com/support orders : orders@bluegiga.com www: www.bluegiga.com he ad 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. 3235 satellite boulevard, building 400, suite 300 duluth, ga, 30096, usa sales office / hong - kong: bluegiga technologies ltd. phone: +852 3972 2186 |
Price & Availability of BLE121LR
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |