FLC-BTM403 Series User Manual FLC-BTM403 Series User Manual Document Type: Bluetooth Module User Manual Document Number: FLC-BTM403-DS Document Version: V1.0 Release Date: April 13, 2011 Copyright 2010 ~ 2011 by Flaircomm Technologies Inc., All Right Reserved Without written permission from Flaircomm Technologies Inc.
FLC-BTM403 Series User Manual FCC Regulations: zThis 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. zThis device has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
FLC-BTM403 Series User Manual CONTENT 1. 1.1 1.2 1.3 INTRODUCTION................................................................................................................................. 5 NAMING DECLARATION ....................................................................................................................... 5 FEATURES ............................................................................................................................................ 5 APPLICATIONS .......
FLC-BTM403 Series User Manual TABLE AND FIGURE Table 1: Naming Declaration .......................................................................................................................... 5 Table 2: General Specification ........................................................................................................................ 7 Table 3: Pin Definition....................................................................................................................................
FLC-BTM403 Series User Manual 1. Introduction FLC-BTM403/FLC-BTMDC748 is a small form factor and highly economic Bluetooth radio module(class 1 or class 2) that allows OEM to add wireless capability to their products. The module supports multiple interfaces that make it simple to design into fully certified embedded Bluetooth solutions. With FLC’s AT#™ programming interfaces, designers can easily customize their applications to support different Bluetooth profiles, such as SPP, DUN, HDP, and etc.
FLC-BTM403 Series User Manual 1.
FLC-BTM403 Series User Manual 2. General Specification Bluetooth Specification Standard Bluetooth2.1+EDR Profiles SPP, DUN, HDP, detailed profiles depends on the firmware Frequency Band Maximum Data Rate Antenna 2.402G ~ 2.480G 3Mbps Multilayer Ceramic Antenna or UFL port RF Input Impedance 50 ohms Baseband Crystal OSC 16MHz Interface Sensitivity RF TX Power UART, PIO, AIO, USB, SPI, PCM -84dBm@0.
FLC-BTM403 Series User Manual 3. Pin Definition 3.1 Pin Configuration Figure 1: Pin Configuration 3.2 Pin Definition Pin Symbol I/O Type Description 1 GND Ground Ground 2 VDD 3V3 power input 3V3 power input 3 PIO2 4 PIO3 5 UART_RTS 6 UART_RX 7 PCM_OUT Bi-directional Synchronous Data Output 8 USB_DP Bi-directional USB data plus with selectable internal 1.
FLC-BTM403 Series User Manual 9 USB_DN Bi-directional USB data minus 10 UART_CTS CMOS output, tri-state, with weak internal pull-down UART clear to send active low 11 PCM_IN CMOS Input Synchronous Data Input 12 PCM_CLK Bi-directional Synchronous Data Clock 13 PCM_SYNC Bi-directional Synchronous Data Sync 14 GND Ground Ground 15 GND Ground Ground 16 VDD 3.3V power input 3.3V power input 17 RESET Reset if high.
FLC-BTM403 Series User Manual 4. Physical Interfaces 4.1 Power Supply The transient response of the regulator is important. If the power rails of the module are supplied from an external voltage source, the transient response of any regulator used should be 20μs or less. It is essential that the power rail recovers quickly. 4.2 Reset The module may be reset from several sources: RESET pin, power-on reset, a UART break character or via a software configured watchdog timer.
FLC-BTM403 Series User Manual RF-IN High impedance Table 4: Pin Status on Reset Note: Pull-up (PU) and pull-down (PD) default to weak values unless specified otherwise. 4.3 Digital Audio Interfaces The module has offered PCM digital audio interface. PCM is a standard method used to digitize audio (particularly voice) for transmission over digital communication channels.
FLC-BTM403 Series User Manual Figure 2: Configured PCM as a Master When PCM is configured as the slave, the module accepts PCM_CLK rates up to 2048kHz. Figure 3: Configured PCM as a Slave 4.3.2 Long Frame Sync Long Frame Sync is the name given to a clocking format that controls the transfer of PCM data words or samples. In Long Frame Sync, the rising edge of PCM_SYNC indicates the start of the PCM word.
FLC-BTM403 Series User Manual Figure 4: Long Frame Sync (Shown with 8-bit Companded Sample) 4.3.3 Short Frame Sync In Short Frame Sync, the falling edge of PCM_SYNC indicates the start of the PCM word. PCM_SYNC is always one clock cycle long. Figure 5: Short Frame Sync (Shown with 16-bit Sample) As with Long Frame Sync, the module samples PCM_IN on the falling edge of PCM_CLK and transmits PCM_OUT on the rising edge.
FLC-BTM403 Series User Manual Figure 6: Multi-Slot Operation with Two Slots and 8-bit Companded Samples 4.3.5 GCI Interface The module is compatible with the General Circuit Interface (GCI), a standard synchronous 2B+D ISDN timing interface. The two 64Kbps B channels can be accessed when this mode is configured. Figure 7: GCI Interface The start of a frame is indicated by the rising edge of PCM_SYNC and runs at 8kHz. With the module in slave mode, the frequency of PCM_CLK can be up to 4.096MHz. 4.3.
FLC-BTM403 Series User Manual Figure 8: 16-Bit Slot Length and Sample Formats 4.3.7 Additional Features The module has a mute facility that forces PCM_OUT to be 0. In master mode, PCM_SYNC may also be forced to 0 while keeping PCM_CLK running which some CODECS use to control power down. 4.3.8 PCM Timing Information Symbol fmclk Parameter PCL_CLK Frequency 4MHz DDS generation. Selection of frequency is programmable.
FLC-BTM403 Series User Manual 48MHz DDS generation. Selection of frequency is programmable.
FLC-BTM403 Series User Manual Figure 9: PCM Master Timing Long Frame Sync Figure 10: PCM Master Timing Short Frame Sync Symbol Parameter Min Typical Max Unit fsclk fsclk PCM clock frequency (Slave mode: input) PCM clock frequency (GCI mode) 64 128 - 2048 4096 kHz kHz Flaircomm Technologies Confidential -17-
FLC-BTM403 Series User Manual tsclkl tsclkh thsclksynch tsusclksynch tdpout tdsclkhpout tdpoutz tsupinsclkl thpinsclkl PCM_CLK low time PCM_CLK high time Hold time from PCM_CLK low to PCM_SYNC high Set-up time for PCM_SYNC high to PCM_CLK low Delay time from PCM_SYNC or PCM_CLK whichever is later, to valid PCM_OUT data (Long Frame Sync only) Delay time from CLK high to PCM_OUT valid data Delay time from PCM_SYNC or PCM_CLK low, whichever is later, to PCM_OUT data line high impedance Set-up time for PCM_IN
FLC-BTM403 Series User Manual Figure 12: PCM Master Timing Short Frame Sync 4.4 RF Interface The module integrates a balun filter. The user can connect a 50ohms antenna directly to the RF port. 4.5 General Purpose Analogue IO The general purpose analogue IO can be configured as ADC inputs by software. Do not connect them if not use. 4.
FLC-BTM403 Series User Manual Parameter Baud Rate Possible Values Minimum Maximum Flow Control Parity Number of Stop Bits Bits per Byte 1200 baud (≤2%Error) 9600 baud (≤1%Error) 3M baud (≤1%Error) RTS/CTS or None None, Odd or Even 1 or 2 8 Table 7: Possible UART Settings 4.7.2 USB There is a full speed (12M bits/s) USB interface for communicating with other compatible digital devices. The module acts as a USB peripheral, responding to request from a master host controller, such as a PC.
FLC-BTM403 Series User Manual Figure 13: USB Connections for Self-Powered Mode Note: USB_ON is shared with the module PIO terminals. Identifier Value Function Rs Rvb1 Rvb2 27Ω Nominal 22kΩ 5% 47kΩ 5% Impedance matching to USB cable VBUS ON sense divider VBUS ON sense divider Table 8: USB Interface Component Values 4.7.2.2 Bus-Powered Mode In bus-powered mode, the application circuit draws its current from the 5V VBUS supply on the USB cable.
FLC-BTM403 Series User Manual Figure 14: USB Connections for Bus-Powered Mode 4.7.3 I2C PIO5, PIO7 and PIO6 can be used to form a master I2C interface. The interface is formed using software to drive these lines. It is suited only to relatively slow functions such as driving a LCD, Keyboard, scanner or EEPROM. In the case, PIO lines need to be pulled up through 2.2Kohm resistors. Figure 15: Example EEPROM Connection with I2C Interface 4.7.
FLC-BTM403 Series User Manual arrangement by simple parallel connection of slave SPI_MISO lines. The SPI interface is needed when debugging the Bluetooth functions so please leave test points/pads as shown in Figure 16 on PCB.
FLC-BTM403 Series User Manual 5. Electrical Characteristic 5.1 Absolute Maximum Rating Rating Min Max Unit Storage Temperature -40 +120 °C Operating Temperature -40 +85 °C PIO/AIO Voltage -0.4 +3.6 V VDD Voltage -0.4 +3.7 V USB_DP/USB_DN Voltage -0.4 +3.6 V Other Terminal Voltages except RF -0.4 VDD+0.4 V Table 9: Absolute Maximum Rating Recommended Operating Conditions 5.
FLC-BTM403 Series User Manual VIL input logic level low -0.4 - +0.8 V VIH input logic level high 0.7VDD - VDD+0.4 V - - 0.4 V VDD-0.2 - - V -100 -40 -10 μA With strong pull-down 10 40 100 μA With weak pull-up -5 -1.0 -0.2 μA -0.2 +1.0 5.0 μA I/O pad leakage current -1 0 +1 μA CI Input Capacitance 1.0 - 5.0 pF Typical Max Unit - 0.3VDD - V V 1 - 5 10.0 μA pF - 0.2 VDD V V Output Voltage Levels VOL output logic level low, lOL = 4.
FLC-BTM403 Series User Manual 6.
FLC-BTM403 Series User Manual 7.
FLC-BTM403 Series User Manual 8. Recommended PCB Layout and Mounting Pattern A very important factor in achieving maximum Bluetooth performance is the placement of a module with on-board antenna designs onto the carrier board and corresponding PCB layout. There should be no any trace, ground and vias in the area of the carrier board underneath the module’s on-board antenna section as indicated in Figure 19.
FLC-BTM403 Series User Manual 9. Recommended Reflow Profile The soldering profile depends on various parameters necessitating a set up for each application. The data here is given only for guidance on solder reflow. ℃ 250 217 210 A 25 0 B 1 2 C 3 D 4 E 5 6 min Figure 20: Recommended Reflow Profile Pre-heat zone (A) — This zone raises the temperature at a controlled rate, typically 0.5 – 2 °C/s. The purpose of this zone is to preheat the PCB board and components to 120 ~ 150 °C.
FLC-BTM403 Series User Manual 10. Ordering Information 10.
FLC-BTM403 Series User Manual Figure 21: Product Packaging Information 10.2 Ordering information Figure 22: Ordering Information 10.2.1 Product Revision Product Revision Description Availability A B C Multilayer Ceramic Antenna ( Class 1) UFL connector (Class 1) Multilayer Ceramic Antenna ( Class 2) Table 14: Product Revision Yes Yes Yes 10.2.
FLC-BTM403 Series User Manual Table 17: Product Grade Flaircomm Technologies Confidential -32-
