BLE112 PRELIMINARY DATA SHEET Friday, 19 August 2011 Version 1.
Copyright © 2000-2011 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 0.1 First draft 0.9 Preproduction information 0.91 Prerelease 0.92 Reference schematic added 0.93 Description updated 0.94 Design guide updates, characteristics updates, I/O descriptions updates 0.95 Layout fixes 0.96 Small updates 0.97 Figure 10 corrected 0.98 Recommended land pattern, land width added 0.99 Soldering recommendations added 1.0 Certification information updated. Layout guide for BLE112-N added.
TABLE OF CONTENTS 1 BLE112 Product numbering ......................................................................................................................... 6 2 Pinout and Terminal Description .................................................................................................................. 7 3 Electrical Characteristics ............................................................................................................................ 10 4 3.
BLE112 Bluetooth® low energy single mode module DESCRIPTION BLE112, Bluetooth low energy single mode module is a single mode device targeted for low power sensors and accessories. BLE112 offers all Bluetooth low energy features: radio, stack, profiles and application space for customer applications, so no external processor is needed. The module also provides flexible hardware interfaces to connect sensors, simple user interfaces or even displays directly to the module.
1 BLE112 Product numbering Antenna: A = Internal E = External N = RF pin BLE112-A-X Generation: 1 = 1st 2 = 2nd 3 = 3rd Type: 1 = Single mode 2 = Dual mode 3 = Reseved Class: 1 = class 1 2 = class 2 3 = class 3 Firmware revision - 1.0 - 2.1 - 3.2 Available products and product codes Product code Description BLE112-A-v1 BLE112 with integrated chip antenna and software version 1.0 BLE112-N-v1 BLE112 with RF pin and software version 1.0 BLE112-E-v1 BLE112 with U.
1 GND 2 AVDD RF 31 Pinout and Terminal Description RFGND 32 2 3 AVDD 4 P2_2 5 P2_1 GND 30 6 P2_0 7 P1_7 RESET 29 P0_0 28 8 P1_6 P0_1 27 9 VDD_USB P0_2 26 19 P0_7 21 GND P0_6 22 20 DVDD P0_5 23 13 P1_5 18 P1_0 12 USB‐ 17 P1_1 P0_4 24 16 P1_2 11 USB+ 15 P1_3 P0_3 25 14 P1_4 10 GND Figure 1: BLE112 RESET PIN NUMBER 29 PAD TYPE Active low reset.
PIN PIN NAME PIN TYPE NUMBER DESCRIPTION 4 P2_2 Digital I/O Configurable I/O port, See table 3 5 P2_1 Digital I/O Configurable I/O port, See table 3 6 7 8 11 12 13 14 15 16 P2_0 P1 7 P1_6 USB+ USBP1_5 P1_4 P1_3 P1_2 Digital Digital Digital USB+ USBDigital Digital Digital Digital 17 P1_1 Digital I/O 18 P1_0 Digital I/O 19 22 23 24 25 26 27 28 P0_7 P0_6 P0_5 P0_4 P0_3 P0_2 P0_1 P0_2 Digital Digital Digital Digital Digital Digital Digital Digital Configurable I/O Configurable I/O Configur
PERIPHERAL / FUNCTION ADC Operational amplifier P0 7 A7 6 A6 5 A5 Analog comparator + USART 0 SPI Alt. 2 C 4 A4 P1 3 A3 2 A2 1 A1 0 A0 O - + 5 4 3 2 MO MI C SS 1 0 1 2 1 0 2 0 SS MO MI RT CT TX RX USART 1 SPI Alt.2 MI MO USART 1 UART Alt.2 RX TX RT CT TIMER 3 Alt.2 6 - USART 0 UART Alt.2 TIMER 1 Alt.2 7 P2 1 TX RX RT CT C SS MI MO C SS RX TX RT CT 3 4 4 3 2 1 0 0 1 1 0 0 TIMER 4 Alt.
3 Electrical Characteristics 3.1 Absolute Maximum Ratings Rating Storage Temperature Min -40 Max 85 Unit °C AVDD,DVDD, VDD_USB -0.4 3.6 V Other Terminal Voltages VSS-0.4 VDD+0.4 V Max 85 3.6 Unit °C V Table 4: Absolute Maximum Ratings 3.2 Recommended Operating Conditions Rating Operating Temperature Range AVDD, DVDD, VDD_USB Min -40 2.0 *) VDD_PA has an effect on the RF output power. Table 5: Recommended Operating Conditions 3.
Figure 2: Radiation pattern of BLE112, top view Figure 3: Radiation pattern of BLE112, front view Bluegiga Technologies Oy Preliminary – information subject to change Page 11 of 27
Figure 4: Radiation pattern of BLE112, side view Bluegiga Technologies Oy Preliminary – information subject to change Page 12 of 27
Physical Dimensions Figure 5: Physical dimensions and pinout (top view) 12.05 mm Antenna 18.10 mm U.fl Figure 6: Physical dimensions (top view) 2.3 mm 2.1 mm 18.
Figure 8: Recommended land pattern for BLE112-A and BLE112-E Bluegiga Technologies Oy Preliminary – information subject to change Page 14 of 27
4 Design Guidelines 4.1 General Design Guidelines BLE112 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.
4.2 Layout Guide Lines Use 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 GND 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.
T Figure 13: Recommended layout for BLE112-A 4.4 BLE112-N Layout Guide Use 50 ohm transmission line to trace the signal from RF pin to an external RF connector. Figure 14 shows a layout example for BLE112-N with an external SMA connector.
A transmission line impedance calculator, such as TX-Line made by AWR, can be used to approximate the dimensions for the 50 ohm transmission line. Figure 15 shows an example for two different 50 ohm transmission lines. CPW Ground W = 0.15 mm G = 0.25 mm RF GROUND Prepreg, εr = 3.7 RF GROUND h = 0.076 mm RF GROUND FR4, εr = 4.6 GND stitching vias MICROSTRIP W = 1.8 mm FR4, εr = 4.
5 Soldering Recommendations BLE112 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. Bluegiga Technologies will give following recommendations for soldering the module to ensure reliable solder joint and operation of the module after soldering.
6 Block diagram BLE112 is based on TI’s CC2540 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. Small ceramic chip antenna gives good radiation efficiency even when the module is used in layouts with very limited space. 32 MHz XTAL 32.768 kHz XTAL Clock 2V – 3.
The SFR bus is a common bus that connects 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).
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 one 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 hardware flow control and are thus well suited to high-throughput full-duplex applications.
7 Certifications BLE112 is compliant to the following specifications. 7.1 Bluetooth BLE112 Bluetooth low energy module is Bluetooth qualified and listed as a controller subsystem and it is Bluetooth compliant to the following profiles of the core spec version v.4.0: RF PHY HCI LL The maximum antenna gain specified for BLE112 is 2.3 dBi. Bluetooth qualification is valid for any antenna with gain less than 2.3 dBi. 7.2 FCC and IC This device complies with Part 15 of the FCC Rules.
This radio transmitter (identify the device by certification number, or model number ifCategory II) has been approved by Industry Canada to operate with the antenna types listed below with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. See table 7 for the approved antennas for BLE112.
dispositif doit accepter toute perturbation, y compris les perturbations qui peuvent entraîner un fonctionnement non désiré du dispositif. Selon les réglementations d’Industrie Canada, cet émetteur radio ne doit fonctionner qu’avec une antenne d’une typologie spécifique et d’un gain maximum (ou inférieur) approuvé pour l’émetteur par Industrie Canada.
L’OEM du module BLE112 ne doit utiliser que la ou les antennes approuvées énumérées dans le tableau 7, qui ont été certifiées avec ce module. Dans le guide d’utilisation du produit final, l’intégrateur OEM doit s’abstenir de fournir des informations à l’utilisateur final portant sur les procédures à suivre pour installer ou retirer ce module RF ou pour changer les paramètres RF. 7.
8 Contact Information Sales: sales@bluegiga.com Technical support: support@bluegiga.com http://techforum.bluegiga.com Orders: orders@bluegiga.com WWW: www.bluegiga.com www.bluegiga.hk 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.
