WT41-A-AI4

WT41-A / WT41-N DATA SHEET Wednesday, 22 January 2014 Version 1.44 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. 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 0.1 First draft 0.2 Description and product codes added 0.21 Dimensions updated, layout guide added, UART and USB chapters added 0.22 Pin descriptions, PCM, USB, UART, SPI 0.3 Physical dimensions corrected 0.31 Product codes corrected 0.32 Recommendation for a power-up reset circuitry added to chapter 10 0.4 Pins 1 and 52 (GND) removed. Dimensions updated, recommended land pattern added 0.5 Certification information added 0.6 Physical dimensions and recommended PCB land pattern updated 0.7 Figure 7 recommended land pattern corrected 1.0 Radio and antenna characteristics, layout guide for WT41-N 1.1 Japan certification info added 1.2 FCC RF radiation exposure statement updated 1.3 Layout guide updated 1.31 VDD added to table 1 1.32 FCC and IC statements updated 1.33 PIO current drive capability added. List of approved antennas added. 1.34 IC statements in French added 1.35 Information about Japan compliance updated 1.36 Absolute maximum supply voltage 3.7V 1.37 MIC Japan information updated Bluegiga Technologies Oy 1.4 FCC C2PC to remove 20 cm restriction 1.41 MIC Japan ID corrected 1.42 MSL information updated 1.43 TXP vs VDD_PA figure added 1.44 Minor changes Bluegiga Technologies Oy TABLE OF CONTENTS 1 Ordering Information......................................................................................................................................8 2 Pinout and Terminal Description ...................................................................................................................9 3 Electrical Characteristics ............................................................................................................................ 12 3.1 Absolute Maximum Ratings ................................................................................................................ 12 3.2 Recommended Operating Conditions ................................................................................................. 12 3.3 PIO Current Sink and Source Capability ............................................................................................. 12 3.4 Transmitter Performance For BDR ..................................................................................................... 13 3.5 Radiated Spurious Emissions ............................................................................................................. 14 3.6 Receiver Performance ........................................................................................................................ 15 3.7 Current Consumption .......................................................................................................................... 15 3.8 Antenna Performance and Radiation Patterns ................................................................................... 16 4 Physical Dimensions .................................................................................................................................. 20 5 Layout Guidelines ....................................................................................................................................... 22 6 7 5.1 WT41-A ............................................................................................................................................... 22 5.2 WT41-N ............................................................................................................................................... 23 5.2.1 Layout for WT41-N with u.fl connector close to RF pin ............................................................... 23 5.2.2 Layout for WT41-N with 50 ohm trace from RF pin to a SMA connector .................................... 23 UART Interface ........................................................................................................................................... 25 6.1 UART Bypass ...................................................................................................................................... 27 6.2 UART Configuration While Reset is Active ......................................................................................... 27 6.3 UART Bypass Mode ............................................................................................................................ 27 USB Interface ............................................................................................................................................. 28 7.1 USB Data Connections ....................................................................................................................... 28 7.2 USB Pull-Up resistor ........................................................................................................................... 28 7.3 USB Power Supply .............................................................................................................................. 28 7.4 Self-Powered Mode ............................................................................................................................. 28 7.5 Bus-Powered Mode ............................................................................................................................. 29 7.6 USB Suspend Current ......................................................................................................................... 30 7.7 USB Detach and Wake-Up Signaling.................................................................................................. 30 7.8 USB Driver .......................................................................................................................................... 31 7.9 USB v2.0 Compliance and Compatibility ............................................................................................ 31 8 Serial Peripheral Interface (SPI) ................................................................................................................. 32 9 PCM Codec Interface ................................................................................................................................. 33 9.1 PCM Interface Master/Slave ............................................................................................................... 33 9.2 Long Frame Sync ................................................................................................................................ 34 9.3 Short Frame Sync ............................................................................................................................... 34 9.4 Multi-slot Operation ............................................................................................................................. 35 Bluegiga Technologies Oy 9.5 GCI Interface ....................................................................................................................................... 35 9.6 Slots and Sample Formats .................................................................................................................. 36 9.7 Additional Features ............................................................................................................................. 37 9.8 PCM_CLK and PCM_SYNC Generation ............................................................................................ 37 9.9 PCM Configuration .............................................................................................................................. 38 10 I/O Parallel Ports ..................................................................................................................................... 40 10.1 11 PIO Defaults ................................................................................................................................. 40 Reset ....................................................................................................................................................... 41 11.1 12 Pin States on Reset ..................................................................................................................... 42 Certifications ........................................................................................................................................... 43 12.1 Bluetooth ...................................................................................................................................... 43 12.2 FCC .............................................................................................................................................. 43 12.3 IC (Industry Canada) .................................................................................................................... 44 12.3.1 IC .................................................................................................................................................. 45 12.4 CE ................................................................................................................................................ 47 12.5 Japan ........................................................................................................................................... 47 12.6 Qualified Antenna Types for WT41-N .......................................................................................... 47 12.7 Moisture Sensitivity Level (MSL).................................................................................................. 48 13 Contact Information................................................................................................................................. 49 Bluegiga Technologies Oy WT41 Bluetooth® Module DESCRIPTION WT41 is a long range class 1, Bluetooth® 2.1 + EDR module. WT41 is a highly integrated and sophisticated Bluetooth® module, containing all the necessary elements from Bluetooth® radio to antenna and a fully implemented protocol stack. Therefore WT41 provides an ideal solution for developers who want to integrate Bluetooth® wireless technology into their design with limited knowledge of Bluetooth® and RF technologies. WT41 is optimized for long range applications and since it contains a RF power amplifier, low noise amplifier and a highly efficient chip antenna. With 115 dB radio budget WT41 can reach over 1 km range in line off sight. By default WT41 module is equipped with powerful and easy-to-use iWRAP firmware. iWRAP enables users to access Bluetooth® functionality with simple ASCII commands delivered to the module over serial interface - it's just like a Bluetooth® modem. FEATURES:               Fully Qualified Bluetooth v2.1 + EDR end product, CE, FCC, IC and MIC Japan TX power : 19 dBm RX sensitivity : -92 dBm Higly efficient chip antenna, U.FL connector or RF pin Class 1, range up to 800 meters o Industrial temperature range from -40 C to o +85 C RoHS Compliant USB interface (USB 2.0 compatible) UART with bypass mode 6 x GPIO 1 x 8-bit AIO Support for 802.11 Coexistence TM Integrated iWRAP Bluetooth stack or HCI firmware APPLICATIONS:         Hand held terminals Industrial devices Point-of-Sale systems PCs Personal Digital Assistants (PDAs) Computer Accessories Access Points Automotive Diagnostics Units Bluegiga Technologies Oy 1 Ordering Information WT41-A-HCI Firmware HCI21= HCI30= AI4 = AI5 = C = HCI firmware (Bluetooth 2.1 + EDR) HCI firmware (Bluetooth 3.0) iWRAP 4.0.0 iWRAP 5.0.2 Custom* HW version A = N = Chip antenna RF pin Product series Bluegiga Technologies Oy Page 8 of 49 Pinout and Terminal Description 59 58 57 56 55 54 53 2 GND GND GND GND GND GND GND Pins 1 and 52 (GND) are not connected and have been removed 51 RF RFGND 50 GND GND GND GND GND GND GND GND GND VDD_PA PIO2 PIO3 UART_RTS UART_RX GND USB+ USBUART_CTS PCM_IN PCM_CLK PCM_SYNC GND GND GND GND GND GND GND AIO UART_TX PIO5 SPI_MOSI SPI_MISO SPI_CLK SPI_CSB GND PIO7 PIO6 RESET VDD GND 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 24 25 26 27 28 29 30 GND PCM_OUT GND GND GND PIO4 GND 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Figure 1: WT41 pin out PIN NUMBER NC RESET GND 1, 52 33 2-10, 16, 23,24,2628, 30, 31,36,4449, 53-59 PAD TYPE DESCRIPTION Pins 1 and 52 (GND) have been removed from the module. Input, weak internal pull- Active low reset. Keep low for >5 ms up to cause a reset Not connected GND RF 51 RF output RFGND 50 GND VDD_PA 11 Supply voltage VDD 32 Supply voltage GND RF output for WT41-N. For WT41-A and WT41-E this pin is not connected RF ground. Connected to GND internally to the module. Supply voltage for the RF power amplifier and the low noise amplifier of the module Supply voltage for BC4 and the flash memory Table 1: Supply and RF Terminal Descriptions Bluegiga Technologies Oy Page 9 of 49 PIO PORT PIN PAD TYPE NUMBER DESCRIPTION PIO[2] 12 Bi-directional, programmamble strength internal pull-down/pull-up Programmamble input/output line PIO[3] 13 Bi-directional, programmamble strength internal pull-down/pull-up Programmamble input/output line PIO[4] 29 Bi-directional, programmamble strength internal pull-down/pull-up Programmamble input/output line PIO[5] 41 Bi-directional, programmamble strength internal pull-down/pull-up Programmamble input/output line PIO[6] 34 Bi-directional, programmamble strength internal pull-down/pull-up Programmamble input/output line PIO[7] 35 Bi-directional, programmamble strength internal pull-down/pull-up Programmamble input/output line AIO[1] 43 Bi-directional Programmamble analog input/output line Table 2: GPIO Terminal Descriptions SPI INTERFACE PIN NUMBER PAD TYPE DESCRIPTION CMOS output, tri-state, Synchronous data output weak internal pull-down PCM_OUT 25 PCM_IN 20 CMOS input, weak internal pull-down Synchronous data input PCM_SYNC 22 Bi-directional, weak internal pull-down Synchronous data sync PCM_CLK 21 Bi-directional, weak internal pull-down Synchronous data clock Table 3: PCM Terminal Descriptions UART Interfaces PIN NUMBER UART_TX 42 UART_RTS# 14 UART_RX 15 UART_CTS# 19 PAD TYPE CMOS output, tristate, with weak internal pull-up CMOS output, tristate, with weak internal pull-up CMOS input, tristate, with weak internal pull-down CMOS input, tristate, with weak internal pull-down DESCRIPTION UART data output, active high UART request to send, active low UART data input, active high UART clear to send, active low Table 4: UART Terminal Descriptions Bluegiga Technologies Oy Page 10 of 49 USB Interfaces PIN NUMBER PAD TYPE USB+ 17 Bidirectional USB- 18 Bidirectional DESCRIPTION USB data plus with selectable internal 1.5k pull-up resistor USB data minus Table 5: USB Terminal Descriptions SPI INTERFACE PIN NUMBER SPI_MOSI 40 SPI_CS# 37 SPI_CLK 38 SPI_MISO 39 PAD TYPE CMOS input with weak internal pull-down CMOS input with weak internal pull-up CMOS input with weak internal pull-down CMOS output, tristate, with weak internal pull down DESCRIPTION SPI data input Chip select for Serial Peripheral Interface, active low SPI clock SPI data output Table 6: Terminal Descriptions Bluegiga Technologies Oy Page 11 of 49 3 Electrical Characteristics 3.1 Absolute Maximum Ratings Rating Storage Temperature Min -40 Max 85 Unit °C VDD_PA, VDD -0.4 3.7 V VSS-0.4 VDD+0.4 V Max 85 3.6 Unit °C V Other Terminal Voltages Table 7: Absolute Maximum Ratings 3.2 Recommended Operating Conditions Rating Operating Temperature Range VDD_PA, VDD *) Min -40 3.0 *) VDD_PA has an effect on the RF output power. Table 8: Recommended Operating Conditions 3.3 PIO Current Sink and Source Capability Figure 2: WT41 PIO Current Drive Capability Bluegiga Technologies Oy Page 12 of 49 3.4 Transmitter Performance For BDR Antenna gain 2.3dBi taken into account RF Characetristics, VDD = 3.3V @ room temperature unless otherwise specified Min Typ Max Bluetooth Specification maximum RF Transmit Power 17 19 20 20 RF power variation over temperature range 4 - dB RF power variation over supply voltage range (* 1.5 - dB 2 19 - dB 1000 kHz 0.1 -10 RF power variation over BT band RF power control range (* 20dB band width for modulated carrier F = F0 ± 2MHz ACP (1 1 942 -20 -20 F = F0 ± 3MHz -40 -40 F = F0 > 3MHz -40 -40 +/-25 140