MOD-BT development board
Users Manual

All boards produced by Olimex are ROHS compliant

Rev. B, September 2009

Copyright(c) 2010, OLIMEX Ltd, All rights reserved

Page 1INTRODUCTION
MOD-BT is development board with UEXT female connector, which connected toother Olimex board with UEXT male connector can work as bluetooth serial port
via RS232.

BOARD FEATURES–

BGB203 - combines the Bluetooth RF part, protocol stack, Link Controller (LC),Link Manager (LM), and Host Controller Interface (HCI) firmware of theBluetooth system specification in one SiP with embedded software. Togetherwith an antenna and a reference clock this device forms a complete Bluetoothsolution.

–UEXT female connector–

on-board antenna–

three types power supply – 1.8V, 2.8V and 3.3V–

PCB: FR-4, 1.5 mm (0,062"), soldermask, silkscreen component print–

Dimensions: 35.9x18.8 mm (1.41 x 0.74")

ELECTROSTATIC WARNING
The MOD-BT board is shipped in protective anti-static packaging. The board mustnot be subject to high electrostatic potentials. General practice for working withstatic sensitive devices should be applied when working with this board.

BOARD USE REQUIREMENTS
Hardware: Some of our development boards with UEXT male connector.

Page 2

Bluetooth Controller Features
MOD-BT board use BGB203 bluetooth system-in-a-package radio with baseband
controller with these features:–––

General–Plug-and-play Bluetooth class 1 System-in-a-Package (SiP)–

Includes all baseband and radio functionality, from HCI up to antenna,needs only external antenna and reference clock.

–

Fully compliant to Bluetooth Radio Specification version 1.2.

Radio hardware–

Fully integrated near-zero-IF receiver with high sensitivity (typical -88 dBmat antenna input)–Digital demodulator for improved reception quality–

RSSI with high dynamic range–

Programmable output pre-amplifier–

Maximum output power up to +5.5 dBm typical–

Includes high performance blocking filter for co-existence inGSM/DCS/WCDMA applications–

Fully integrated low phase noise VCO operating in the 5 GHz frequency
range

Hardware features–––

Bluetooth burst mode controller with:–

Ciphering, scrambling, CRC checking/generation, FEC
encoding/decoding and data buffering control–

Support for 7 slaves and three piconets, support of master-slave switch
for new nodes entering the piconet, scatternet support with maximum
one slave in master piconet while being slave in another piconet,
support for 2 voice channels.

–

BT1.2 features :–Fast connection–EV3 (HV3+CRC)–

AFH IP : AFH switch support as master,Channel assesment asmaster

Embedded 32-bit microprocessor consisting of–

An ARM7TDMI-S RISC controller featuring low mW/MHz–

Integrated Flash memory : 268 kBytes.

–

SRAM : 40 kBytes.

Voice processing with–A CVSD, A-law or m-law.

Page 3––Power management providing––––

Support of a direct link between PCM interface and BT1.2 core for thevoice channels.
Power-on resetClocking–

Low power clock crystal oscillator for low power mode, accepting
3.2KHz, 32KHz, and 32.768KHz.

–

Low-power system clock crystal oscillator with programmable on-chip
capacitors for frequency adjustment with large pulling range accepting
the frequency 12MHz, 13MHz, 24MHz and 26 MHz.

Microprocessor interfaces–

General purpose I/O-pins–

I2C-bus interface–

Multi port PCM interface (linear and log PCM up to 16 bit/samplesupported)–UART with hardware handshake and IrDA support–

USB interface (vddio2 : 3.3V).

–System timers–Watch dog timer–

JTAG for ICE and flash memory programming–ETM7 for real time trace.

–Patch interface for ROM version emulation.

Voltage range–Radio 2.75 V–Core 1.8 V–

Peripheral pins 1.8 and 3.3V

Page 4BLOCK DIAGRAM

Page 5

Page 6

C162.2uF

C17100n431

ADJ/EN

IN

OUT

5

GND

R291K/1%

R1120K/1%

+2.8V

R6NA

3.3V

TXD
RSTRTS
DTR

CTS
RTS
TXD
RXD

3.3V
2.8V1.8V
GND

10nC15RST100p100nC9C10+2.8V
1.8V

100n 100n 100p

C83.3V

333134324239414017163.3V+2.8V
1.8V

BGB203

XTAL1_LPXTAL2_LPGPIO[10]/SYS_CLK_REQ
GPIO[11]/CD
GPIO[12]/RI
GPIO[13]/DTR
GPIO[0]/I2C_SCL
GPIO[14]/DSR
GPIO[1]/I2C_SDA
GPIO[15]/SYS_CLK_REQ
GPIO[16]/OSC_MODE
GPIO[2]/CTS_UART/LED_USB/CLK_EXTGPIO[17]/BTACT
GPIO[3]/RTS_UART/CONNECT_USB
GPIO[4]/TXD_UARTTMS_JTAGGPIO[5]/RXD_UARTTDO_JTAGTDI_JTAGGPIO[6]/DA_IPTCK_JTAGGPIO[7]/FSC_IP
GPIO[8]/DCLK_IP
XTAL1_SYSGPIO[9]/DB_IP
XTAL2_SYSVANLORESET_N

1543272820194546474823221221113025
142

L1
1.2nH/+-0.3nH

C4

6.8pF/50V/NP0/0603
Q1
GND_GND

GND
GND
GND
GND
GND
GND
GND
GND
GND
GND

+

4.7uF/6.3V
C72

http://www.olimex.com/dev

COPYRIGHT(C), 2009

Rev. B

MOD-BTANTENNA_G NDM

ANT

C6C5560

3.3V

1.5p/250V/+-0.25p

STAT
R8T1STATDTC114YKA yellow(0805)

1.8p/250V/+-0.1pC313.00000MHz/10p/5302
6.8pF/50V/NP0/0603

DTR
DSR

100p

ANT

C14100n

3.3V

C13DN_USB
DP_USB

VBUS_USB

3738

U1C12C11VDDIO1VDDC/VDDIO1VDDC
VDDA/VDDO
VDDIORF100n

C181uF

MCP1700T-1802E/MB

TPS77001

C23220220220220

VDDRF

GND

1VOUT

1.8V

R3R9R4R529VIN

2468
10

IDC10F/PCB

UEXT

13VDDIO21uF

2VR12202201357926
2435
1844

C13.3V

RXD
STAT R10CTS
DSR
R71.8V363.3V

3.3V+2.8V

SCHEMATIC

491098765431BOARD LAYOUT

POWER SUPPLY CIRCUIT
MOD-BT is typically power supplied by UEXT pin 1 and pin 2 with 3.3V.
There are two more power supplies – 2.8V for Radio and 1.8V for the core.

RESET CIRCUIT
MOD-BT reset circuit includes pin 6 of UEXT connector, pin 43 (RESET_N) of U1and C15 (10nF).

CLOCK CIRCUIT
Quartz crystal 13 MHz is connected to BGB203 pin 20 (XTAL1_SYS) and pin 19(XTAL2_SYS).

JUMPER DESCRIPTION
There are no jumpers on this board.

INPUT/OUTPUT
Status led (yellow) with name STAT – this led shows that +3.3V is applied to theboard.

Page 7

CONNECTOR DESCRIPTIONS
UEXT
Pin #Signal Name

13.3V

2GND

3RXD

4TXD

5STAT6RST7CTS

8RTS

9DSR

10DTR

POWER SUPPLY OUTLETS

Page 8

MECHANICAL DIMENSIONSUEXT measures

Page 9

ORDER CODE
MOD-BT – completely assembled and tested
How to order?
You can order to us directly or by any of our distributors.
Check our web www.olimex.com/dev for more info.

Revision history:
REV. B- create September 2009

Page 10

Disclaimer:© 2010 Olimex Ltd. All rights reserved. Olimex®, logo and combinations thereof, are registered trademarks ofOlimex Ltd. Other terms and product names may be trademarks of others.
The information in this document is provided in connection with Olimex products. No license, express or impliedor otherwise, to any intellectual property right is granted by this document or in connection with the sale of
Olimex products.
Neither the whole nor any part of the information contained in or the product described in this document may beadapted or reproduced in any material from except with the prior written permission of the copyright holder.
The product described in this document is subject to continuous development and improvements. All particularsof the product and its use contained in this document are given by OLIMEX in good faith. However all warranties
implied or expressed including but not limited to implied warranties of merchantability or fitness for purpose areexcluded.
This document is intended only to assist the reader in the use of the product. OLIMEX Ltd. shall not be liable forany loss or damage arising from the use of any information in this document or any error or omission in suchinformation or any incorrect use of the product.

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