BTM420/421
Bluetooth
®
Data Module
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/bluetooth
4
Laird
Americas: +1-800-492-2320
Europe: +44-1628-858-940
Hong Kong: +852 2923 0610
O
VERVIEW AND
K
EY
F
EATURES
The BTM420 and BTM421 Bluetooth modules from Laird Technologies have been designed to meet the
needs of developers who wish to add robust, short range Bluetooth data connectivity to their products and
who are using embedded Bluetooth stacks within their products. They are based on the market leading
Cambridge Silicon Radio BC04 chipset, providing exceptionally low power consumption with outstanding
range. They support the latest Bluetooth Version 2.1 Specification with EDR (Enhanced Data Rate). As well as
increasing data throughput up to 2.1 Mbps, this provides the important advantage of Secure Simple Pairing,
which improves security and enhances the ease of use for end customers.
With physical sizes as small as 12.5mm x 18.0mm and best of class, low power performance, these modules
are the ideal choice for applications where designers need both performance and minimum size. For
maximum flexibility in systems integration, the modules are designed to support separate power supplies for
I/O and the USB interface.
These modules present an HCI interface through a USB interface and are fully qualified as Bluetooth
Controller Subsystem Products. This allows designers to integrate them existing pre-approved Bluetooth Host
and Profile subsystem stacks to gain a Bluetooth END product approval for their product.
A low cost developer’s kit is available for prototyping. This ensures that the choice of Laird Technologies
Bluetooth modules guarantees the fastest route to market.
Features and Benefits
Bluetooth v2.1+EDR
Adaptive Frequency Hopping to cope with
interference from other wireless devices
Support for Secure Simple Pairing
External or internal antenna options
HCI Interface over USB
Bluetooth controller subsystem product
qualified
Compact size
Class 2 output – 4dBm
Low power operation
USB interface
Multipoint Support
PCM & SCO for external codec
Wi-Fi coexistence hardware support
Application Areas
Embedded devices
Phone accessories
Security devices
Medical and wellness devices
Automotive applications
Bluetooth® advertising
ePOS
