ST X-NUCLEO-IDB04A1 User manual

February 2015 DocID026346 Rev 3 1/13
UM1765
User manual
X-NUCLEO-IDB04A1 Bluetooth low energy expansion board
based on BlueNRG for STM32 Nucleo
Introduction
This document provides detailed hardware requirements and board connections for the X-
NUCLEO-IDB04A1 Bluetooth
®
low energy (BLE) evaluation board based on BlueNRG for
STM32 Nucleo. This board is part of STMicroelectronics’ offering of evaluation boards
designed around the BlueNRG Bluetooth low energy wireless network processor.
Figure 1. X-NUCLEO-IDB04A1 evaluation board
Other BlueNRG evaluation boards are available in the following kits:
•STEVAL-IDB002V1: BlueNRG development platform
•STEVAL-IDB003V1: BlueNRG USB dongle
www.st.com

Contents UM1765
2/13 DocID026346 Rev 3
Contents
1 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Hardware requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 X-NUCLEO-IDB04A1 board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1.1 Current measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 List of acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Board schematic and bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

DocID026346 Rev 3 3/13
UM1765 Getting started
13
1 Getting started
This section describes the hardware requirements for the X-NUCLEO-IDB04A1 evaluation
board.
1.1 Hardware requirements
The X-NUCLEO-IDB04A1 is an expansion board for use with STM32 Nucleo boards (please
refer to UM1724 on www.st.com for further information). To function correctly, the STM32
Nucleo board must be connected to the X-NUCLEO-IDB04A1 board as shown in Figure 2
below.
Figure 2. X-NUCLEO-IDB04A1 connected to STM32 Nucleo board
The interconnection between the STM32 Nucleo and the X-NUCLEO-IDB04A1 has been
designed to permit the use of any STM32 Nucleo board, although the optimal combination is
obtained using the NUCLEO-L152RE or NUCLEO-L053R8 hosting the ultra-low power
STM32.

Getting started UM1765
4/13 DocID026346 Rev 3
1.2 System requirements
Using the Nucleo boards with the X-NUCLEO-IDB04A1 expansion board requires the
following software and hardware:
•a Windows PC (XP, Vista, 7, 8) to install the software package
•a USB type A to Mini-B USB cable to connect the Nucleo to the PC
Installation of the board firmware package (order code: X-CUBE-BLE1) and the BlueNRG
graphical user interface utility on the user’s PC requires the following:
•At least 128 MB of RAM
•40 MB of hard disk space available
The X-CUBE-BLE1 firmware and related documentation is available on st.com.

DocID026346 Rev 3 5/13
UM1765 Hardware description
13
2 Hardware description
This section describes the X-NUCLEO-IDB04A1 features and provides information which
could be useful for understanding the board schematics.
2.1 X-NUCLEO-IDB04A1 board
The board allows the user to test the functionality of the BlueNRG processor. It hosts the
innovative BALF-NRG-01D3 balun & harmonic filter and its functionality can be exploited
using the firmware package contained in the X-CUBE-BLE1. It is fundamental to program
the microcontroller on the STM32 Nucleo board. Please refer to user manuals UM1724 and
UM1725, available on www.st.com.
The BlueNRG processor and the STM32 Nucleo board are connected through connectors
CN5, CN6, CN8 and CN9 (see Table 1 for details). The pins indicated with an asterisk (*)
represent an alternative pin for that specific function, i.e. SPI_IRQ could be moved from
CN8.1 to CN5.2.
To change the default pin SPI_CLK and SPI_IRQ, the user must disassemble, respectively,
R10 and R12, and assemble R11 and R16.
Table 1. Interconnection between STM32 Nucleo board and X-NUCLEO-IDB04A1
NC IOREF RESET 3V3 5V GND GND VIN A0 A1 A2 A3 A4 A5
Left connectors
12345678 123456
3V3 GND GND SPI_IRQ SPI_CSN
D15 D14 AREF GND D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Right connectors
CN5 digital CN9 digital
1098765432187654321
GND SPI_CLK* SPI_MISO SPI_MOSI SPI_IRQ* SPI_MCSN BNRG_RST SPI_CLK

Hardware description UM1765
6/13 DocID026346 Rev 3
The board also includes:
– a high frequency 16 MHz crystal
– a low frequency 32 kHz crystal for lowest power consumption
– a BALF-NRG-01D3 balun & harmonic filter
– an EEPROM M95640 to store the board parameters
Not mounted:
– a JTAG connector to program the BlueNRG processor
– an SMA connector for the external antenna
2.1.1 Current measurements
To monitor the power consumption of entire BlueNRG X-NUCLEO-IDB04A1 board, jumper
U5 can be used, inserting an ammeter probe between pins 1 and 2 of the connector. Since
the power consumption of BlueNRG during most of its operating time is very low, an
accurate instrument in the range of few microamps may be required.

DocID026346 Rev 3 7/13
UM1765 List of acronyms
13
3 List of acronyms
Table 2. List of acronyms used in the document
Term Meaning
BLE Bluetooth low energy
USB Universal serial bus

Board schematic and bill of material UM1765
8/13 DocID026346 Rev 3
4 Board schematic and bill of material
Table 3. Bill of materials (part 1)
Item Quantity Reference Part Note
1 4 C1, C17, C20, C22 1u_0402_X5R VBAT & SMPS OUT filter cap
2 6 C2, C16, C18, C19, C21, C23 100n_0402_X7R VBAT filtering
3 2 C3, C15 100p_0402_C0G VBAT filtering
4 1 C4 150n_0402_X5R VREG filtering
5 2 C5, C6 22p_0402_C0G 32 kHz XTAL load cap
6 1 C27 56p_0402_C0G TX/RX balun cap
7 1 C24 56p_0402_C0G TX/RX bypass cap
8 1 C25 TBD_0402_COG Tuning cap
9 1 C26 TBD_0402_COG Tuning cap
10 1 L4 TBD_0402 Tuning cap
11 2 C13, C14 15p_0402_C0G 16 MHz XTAL load cap
12 1 D1 Soldered between pins 1
and 2 SMPS out inductor
13 1 JP1 HEADER 1X3 Male strip 1X3, 100 mils
14 1 J1 THR 1.27 mm 2x5 pins Test connector
15 1 J2 RF_IN/OUT UFL jack assembly, End Launch
16 1 U4 BALF-NRG-01D3 Integrated balun for BlueNRG
QFN32
17 1 CN5 Extra-long 10 pins
female-male strip Female side mounted to the top
18 2 CN6, CN9 Extra-long 8 pins female-
male strip Female side mounted to the top
19 CN8 Extra-long 6 pins female-
male strip Female side mounted to the top
20 1 Q1 XTAL XTAL
21
(1)
1 Q2 XTAL XTAL

DocID026346 Rev 3 9/13
UM1765 Board schematic and bill of material
13
22 5 R1, R3, R4, R5, R6 Connect to V
DD
, pull-down
23 1 R2 10k_0402 Connect to ground
24 2 R7, R9 100k_0402 Pull-up and pull-down
25 4 R10, R12, R14, R15 0_0402 jumper-resistor
26 3 R11, R13, R16 0_0402 jumper-resistor
27 1 U1 BlueNRG RF IC
28 1 U5 HEADER 1X2 Male strip 1X2, 100 mils
27 1 U3 EEPROM Memory
28 3 TEST8, TEST11,TEST12 Test point Test point
1. First release of the board mount 16MHz X'tal, however ST suggests to use 32MHz to exploit at best all the functionalities of
BlueNRG.
Table 3. Bill of materials (part 1) (continued)
Item Quantity Reference Part Note
Table 4. Bill of materials (part 2)
Item Package Manufacturer Manufacturer’s ordering code /
orderable part number +8 dBm
1 SM/C_0402 Murata GRM155R61A105KE15 1 uF
2 SM/C_0402 Murata GRM155R71C104KA88 100 nF
3 SM/C_0402 Murata GRM1555C1H101JZ01 100 pF
4 SM/C_0402 Murata GRM155R61A154KE19 150 nF
5 SM/C_0402 Murata GRM1555C1H220JZ01 22 pF
6 SM/C_0402 Murata GRM1555C1H560JA01 56 pF
7 SM/C_0402 Murata NE
8 SM/C_0402 Murata GRM1555C1H120JZ01 1.2 pF
9 SM/C_0402 NE
10 SM/C_0402 Murata GRM1555C1H180JZ01 1.8 pF
11 SM/C_0402 Murata GRM1555C1H150JZ01 15 pF
12 SM/L_0805 Murata LQM21FN100M70L 10 uH
13 WALCON.100/VH/TM2
OE/W.325/10/MOD

Board schematic and bill of material UM1765
10/13 DocID026346 Rev 3
14 SAMTEC FTSH-105-01-F-D-K NE
15 SMT Hirose U.FL-R-SMT-1(10) Digikey
H11891CT-ND NE
16 STMicroelectronics BALF-NRG-01D3
17 2.54 mm pitch 4UCON 18688
18 2.54 mm pitch 4UCON 18688
19 2.54 mm pitch 4UCON 18688
20 NX3215SA NDK NX3215SA-32.768kHz-EXS00A-
MU00003 32.768 kHz
21
(1)
XTAL_32_25_REV2 NDK NX3225SA -16.000MHz-EXS00A-
CS05997 16 MHz
22 SM/R_0402 Tyco Electronics NE
23 SM/R_0402 Tyco Electronics 10 k
24 SM/R_0402 Tyco Electronics 100 k
25 SM/R_0402 Tyco Electronics 0 Ohm
26 SM/R_0402 Tyco Electronics NE
27 QFN32 STMicroelectronics
28 WALCON.100/VH/TM2
OE/W.325/10/MOD
27 SO8N STMicroelectronics M95640-RMN6
28 TP NE
1. First release of the board mount 16MHz X'tal, however ST suggests to use 32MHz to exploit at best all the functionalities of
BlueNRG.
Table 4. Bill of materials (part 2) (continued)
Item Package Manufacturer Manufacturer’s ordering code /
orderable part number +8 dBm

DocID026346 Rev 3 11/13
UM1765 Board schematic and bill of material
13
Figure 3. X-NUCLEO-IDB04A1 expansion board schematic diagram
Male Connector 2x5
Solder a 10u_0805 between 1-2 or a 0R0_0805 between 1-3
PCB Meander Antenna
Not mounted
Not mounted
Not mounted
VBAT1
VBAT1
NO_SMPS
NO_SMPS
nS
CLK
MOSI
MISO
RST
MOSI CLK IRQ
MISO
CSN
VBAT2 VBAT3
TEST10
VBAT3
TEST5
TEST6
TEST7
TEST4
TEST10
TEST5
TEST4
TEST6
TEST7
VBAT2
TEST8
TEST11
TEST12
TEST8 TEST11 TEST12
MOSI
MISO
nS
RST
CLK
CLK
IRQ
CSN
CSN
IRQ
VDD VDD VDD
VDD
VDD
3V3
VDD
VDD
3V3 VDD
C18
CN8
100n_0402_X7R
CON6
1
2
3
4
5
6
C21
CN5
100n_0402_X7R
CON10
9
8
7 6 5 4
3
2 1
10
U4
B1
4
B2
BALF-NRG-01D3
3A2
A1 2
1
C4
0 R14
150n_0402_X5R
TEST8
R3 nc
C25
R5
nc
TBD_0402_COG
C23
0 R15
100n_0402_X7R
C1 C2
1u_0402_X5R
CN6
100n_0402_X7R
CON8
1 2 3 4
5
6
7
8
C6
22p_0402_COG
U1
BlueNRG-N
1SPI_MOSI
2SPI_CLK
3SPI_IRQ
4TEST1 5VBAT3
6TEST2
7TEST3
8TEST4
9TEST5
TEST6
10
TEST7
11
12 VDD1V8
18
FXTAL0 17
FXTAL1
TEST12
16 TEST11
15 TEST9
13
14 TEST8
24
VBAT1 23
SXTAL0 22 SXTAL1
RF0 21
RF1 20
VBAT2 19
GND 33
RESETN
SMPSFILT1 25
NO_SMPS 26
SMPSFILT2 27
VDD1V2 28
TEST10 29
SPI_CS 30
SPI_MISO 31
32
R9
100k_0402
C13
12p_0402_COG
C26
TBD_0402_COG
JP1
1
TEST10
2
3
0
R13
Q1
U3
XTAL_32k
nS
M95640
1
Q
2
nW
3
4Vss
8
Vcc 7
nHOLD
C6
D5
TEST12
R12 0
C20
1u_0402_X5R
C15
0 R16
100p_0402_COG
L4
TBD_0402
J1
12 34
Test connector
56
78 910
C17
1u_0402_X5R
Q2
HIGH-FREQ-XTAL
C27
56p
R1 nc
1GND
2SIG
J2 U.FL connector
3
GND
C14
R6 nc
12p_0402_COG
0
R10
CN9 CON8
8 7 6 5 4 3 2 1
U5
1
1
Jumper2
22
TEST11
R2
10k_0402
C19
C24
100n_0402_X7R
56p
D1
1
2
3
C5
0
R11
22p_0402_COG
R7
100k_0402
C22
R4
1u_0402_X5R
nc C3
100p_0402_COG
C16
100n_0402_X7R

Revision history UM1765
12/13 DocID026346 Rev 3
5 Revision history
Table 5. Document revision history
Date Revision Changes
16-May-2014 1 Initial release.
21-Jan-2015 2 Modified:
- Table 3 and Table 4.
19-Feb-2015 3 Modified:
- order code from STSW-IDB04V1 to X-CUBE-BLE1
Section 1.2 and Section 2.1.

DocID026346 Rev 3 13/13
UM1765
13
IMPORTANT NOTICE – PLEASE READ CAREFULLY
STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and
improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on
ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order
acknowledgement.
Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or
the design of Purchasers’ products.
No license, express or implied, to any intellectual property right is granted by ST herein.
Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.
ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners.
Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2015 STMicroelectronics – All rights reserved