Silicon Laboratories Finland BLE121LR User Manual
BLE121LR
DATA SHEET
Sunday, 08 June 2014
Version 1.12
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.
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VERSION HISTORY
Version
Comment
1.1
First release
1.11
Standard gain mode option for the receiver added. Figure 22 corrected
1.12
FCC and IC info added
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TABLE OF CONTENTS
1 BLE121LR Product numbering ......................................................................................................................6
2 Pinout and Terminal Description ...................................................................................................................7
2.1 I/O Ports .............................................................................................................................................. 10
2.1.1 I/O Configurations ........................................................................................................................ 10
2.1.2 Reserved I/O’s ............................................................................................................................. 10
2.2 UART ................................................................................................................................................... 10
3 Electrical Characteristics ............................................................................................................................ 11
3.1 Absolute Maximum Ratings ................................................................................................................ 11
3.2 Recommended Operating Conditions ................................................................................................. 11
3.3 DC Characteristics .............................................................................................................................. 11
3.4 Current Consumption .......................................................................................................................... 12
3.5 RF Characteristics ............................................................................................................................... 13
4 Physical Dimensions .................................................................................................................................. 17
5 Power-On Reset and Brownout Detector ................................................................................................... 19
6 Design Guidelines ...................................................................................................................................... 20
6.1 General Design Guidelines ................................................................................................................. 20
6.2 Layout Guide Lines ............................................................................................................................. 20
6.3 BLE121LR-A Layout Guide ................................................................................................................. 21
7 Soldering Recommendations ..................................................................................................................... 23
8 Block diagram ............................................................................................................................................. 24
9 Certifications ............................................................................................................................................... 27
9.1 Bluetooth ............................................................................................................................................. 27
9.2 FCC and IC ......................................................................................................................................... 27
9.2.1 FCC et IC ..................................................................................................................................... 28
9.3 CE ....................................................................................................................................................... 30
9.4 MIC Japan ........................................................................................................................................... 30
9.5 KCC (Korea) ........................................................................................................................................ 30
10 Contact Information................................................................................................................................. 31
Bluegiga Technologies Oy
BLE121LR Bluetooth® Smart Module
DESCRIPTION
BLE121LR is a Bluetooth Smart Long Range
module targeted for Bluetooth Smart
applications where the best possible RF
performance and range are required. At +8
dBm TX power and -98 dBm sensitivity
BLE121LR has best-in-class RF performance
and can provide Bluetooth Smart connectivity
up to 450 meters. BLE121LR integrates all
features required for a Bluetooth Smart
application: Bluetooth radio, software stack
and GATT based profiles. and it can also host
end user applications, which means no
external micro controller is required in size,
price or power constrained devices.
BLE121LRBluetooth Smart module also has
flexible hardware interfaces to connect to
different peripherals or sensors. Although
BLE121LR Bluetooth Smart Long Range
Module is target for applications requiring high
RF performance, it is still has relatively low
power consumption and can be power using a
standard 3V coin cell batteries.
APPLICATIONS:
Smart home accessories
beacon devices
Health and fitness sensors
Medical sensors
iPhone and iPad accessories
Security and proximity tags
KEY FEATURES:
Bluetooth v. 4.0 Single Mode Compliant
o Master and slave modes
o Up to eight connections
Integrated Bluetooth Smart Stack
o GAP, ATT and GATT
o Bluetooth Smart profiles
Best-in-Class RF Performance
o Transmit power : +8 dBm
o Receiver sensitivity: -98 dBm
o Range up to 450 meters
Low Current Consumption
o Transmit: 36 mA (+8 dBm)
o Receive: 33 mA (-98 dBm)
o Power mode 3: 0.5 uA
Flexible Peripheral Interfaces
o UART and SPI
o I2C, PWM and GPIO
o 12-bit ADC
Host Interfaces:
o UART
Programmable 8051 Processor for
Stand-alone Operation
o Simple Bluegiga BGScript
TM
scripting language for quick
application development
o Bluegiga Profile Toolkit
TM
allowing the quick development
of GATT based profiles
Dimensions: 14.7 x 13.0 x 1.8 mm
Bluetooth, CE, FCC, IC, South Korea
and Japan qualified
Bluegiga Technologies Oy
Product code
Description
BLE121LR-A-M256K
BLE121LR with an embedded chip antenna and with 256k internal flash
1 BLE121LR Product numbering
Available products and product codes
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Page 6 of 31
Pin Number
Pin Name
Pad Type
Description
1-3, 14, 15,
22 31-36
GND
GND
GND
13
AVDD
Supply voltage
23
DVDD
Supply voltage
7
Reset
Reset
Active low reset
Pin Number
Pin Name
Pad Type
Description
6
P0_0
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
5
P0_1
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
4
P0_2
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
8
P0_3
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
2 Pinout and Terminal Description
Figure 1: BLE121LR
Table 1: Supply and RF Terminal Descriptions
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Page 7 of 31
9
P0_4
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
10
P0_5
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
11
P0_6
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
12
P0_7
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
30
P1_2
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
29
P1_3
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
28
P1_4
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
27
P1_5
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
17
P1_6
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
19
P2_0
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
20
P2_1
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
21
P2_2
I/O
Configurable Input/Output. See Table 4:
Peripheral I/O Pin Mapping
Pin Number
Pin Name
Pad Type
Description
24
SCL
I2C clock
25
SDA
I2C data
18
DCDC_CNTRL
Output
On / by-pass control for an external
DCDC converter
Table 2: Configurable I/O Terminals
Table 3: Non-configurable Terminals
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Page 8 of 31
HARDWARE.XML Example (*
7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 2 1 0
A7 A6 A5 A4 A3 A2 A1 A0
Alt.1
C SS MO MI
<usart channel="0" mode="spi_master" alternate="1" ...
Alt.2
MO MI C SS
<usart channel="0" mode="spi_master" alternate="2" ...
Alt.1
RT CT TX RX
<usart channel="0" mode="uart" alternate="1" ...
Alt.2
TX RX RT CT
<usart channel="0" mode="uart" alternate="2" ...
Alt.1
MI MO C SS
<usart channel="1" mode="spi_master" alternate="1" ...
Alt.2
MO C SS
<usart channel="1" mode="spi_master" alternate="2" ...
Alt.1
RX TX RT CT
<usart channel="1" mode="uart" alternate="1" ...
Alt.2
TX RT CT
<usart channel="1" mode="uart" alternate="2" ...
Alt.1
4 3 2 1 0
<timer index="1" alternate="1" ...
Alt.2
3 4 0
<timer index="1" alternate="2" ...
Alt.1
1 0
<timer index="3" alternate="1" ...
Alt.2
0
<timer index="3" alternate="2" ...
Alt.1 <timer index="4" alternate="1" ...
Alt.2
0
<timer index="4" alternate="2" ...
DC DD
5 4 3 2
P1
PERIPHERAL /
FUNCTION
P2
USART 0 SPI (**
R
E
S
E
R
V
E
D
R
E
S
E
R
V
E
D
D
C
D
C
C
O
N
T
R
O
L
DEBUG
OBSSEL
ADC
TIMER 3
TIMER 4
P0
USART 0 UART
USART 1 SPI (**
USART 1 UART
TIMER 1
*) Refer to BLE Configuration Guide for detailed settings
**) SS is the slave select signal when BLE121LR is set as SPI slave. When set as SPI master, any available I/O can be used as chip select signal of
BLE121LR
NOTE: Pins configured as peripheral I/O signals do not have pull-up / -down capability
Table 4: Peripheral I/O Pin Mapping
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Page 9 of 31
Baud rate (bps)
Error (%)
2400
0.14
4800
0.14
9600
0.14
14 400
0.03
19 200
0.14
28 800
0.03
38 400
0.14
57 600
0.03
76 800
0.14
115 200
0.03
230 400
0.03
2.1 I/O Ports
2.1.1 I/O Configurations
Each I/O port can be configured as an input or output. When configured as input, each I/O port can also be
configured with internal pull-up, pull-down or tri-state. Pull-down or pull-up can only be configured to whole
port, not individual pins. Unused I/O pins should have defined level and not be floating. See the BLE
Configuration Guide for more information about the configuration.
During reset the I/O pins are configured as inputs with pull-ups.
Note: Pins configured as peripheral I/O signals do not have pull-up / -down capability
2.1.2 Reserved I/O’s
The high current driving pins P1_0 and P1_1 are reserved for the internal RF front end control. These pins are
not exposed in BLE121LR and they can’t be used for application purposes.
P1_7 is also used for the RF front end control but as an output it can be used to control the external DCDC for
lowering the peak current drawn from the battery. The function of P1_7 can’t be altered. If external DCD is not
used then P1_7 should be left not connected.
2.2 UART
UART baud rate can be configured up 2 Mbps. See the BLE Configuration Guide for more information.
Following table lists commonly used baud rates for BLE121LR
Table 5: Commonly used baud rates for BLE121LR
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Page 10 of 31
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