Bluetooth HCI Data Module
BTM420/421
Innovative Technology
for a Connected World
The BTM420 and BTM421 Bluetooth modules are designed to meet the needs of
developers adding robust, short range Bluetooth data connectivity to their products
and using embedded Bluetooth stacks within these products. They are based on the
market-leading Cambridge Silicon Radio BC04 chipset, providing exceptionally low power
consumption with outstanding range. Supporting the latest Bluetooth Version 2.1
Specification with EDR (Enhanced Data Rate), HCI Data Modules increase data throughput
up to 2.1 Mbps. BT version 2.1 provides the advantage of Secure Simple Pairing that
improves security and enhances ease of use for end customers.
With a footprint as small as 12.5mm x 18.0mm and best-of-class low-power operation,
these modules are ideal 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 and are fully qualified as Bluetooth Controller
Subsystem products. This also allows designers to integrate their existing pre-approved
Bluetooth Host and Profile subsystem stacks to gain a Bluetooth END product approval for
their products.
A low-cost developers kit is available for prototyping, ensuring a fast route to market.
FEATURES AND BENEFITS APPLICATION AREAS
Bluetooth v2.1+EDR Embedded devices
Adaptive frequency hopping to cope with interference Phone accessories
from other wireless devices
Security devices
Secure Simple Pairing support
Medical devices
External or internal antenna options
Aftermarket automotive
HCI interface applications
Bluetooth controller subsystem product qualiefi d Bluetooth advertising
Compact size ePOS
Class 2 output 4dBm
Low power operation
USB interface
PCM for external codec
Wi-Fi co-existence hardware support
global solutions: local support
TM
USA: +1.800.492.2320
Europe: +44.1628.858.940
Asia: +852.2268.6567
wirelessinfo@lairdtech.com
www.lairdtech.com/wireless
Bluetooth HCI Data Module
BTM420/421
Innovative Technology
for a Connected World
CATEGORIES FEATURE IMPLEMENTATION
Wireless Specification Bluetooth Version 2.1+EDR
Frequency 2.402 2.480 GHz
Class 2
Max Transmit Power + 4dBm (at antenna pad BTM420)
+4dBm (from integrated antenna BTM421)
Receive Sensitivity Better than -84dBm
Range Up to 30 meters
Data Rates Up to 2.1Mbps (over the air)
Host Interface USB Qualified to USB v 1.1. Compliant
with USB 2.0 Data signalling requirements.
Power Consumption Current Consumption Less than 40 mA during SCO transmission
Supply Voltage Supply 3.0V to +3.3V
USB 3.1V to 3.6V
I/O 1.7V to +3.3V (independent of Vcc)
Coexistence / 802.11 (Wi-Fi) 2 wire and 3 wire schemes supported
Compatibility
Connections External Antenna Connection via SMT pad BTM420
Internal Antenna Multilayer ceramic BTM421
Physical Dimensions 12.5mm x 18.0mm x 3.4mm (external antenna BTM420)
12.5mm x 22.0mm x 3.4mm (integrated antenna BTM421)
Environmental Operating Temperature -30C to +70C
Storage Temperature -40C to +85C
Miscellaneous Lead free Lead-free and RoHS compliant
Warranty 1 Year
Development Tools Development Kit Development board
Approvals Bluetooth Controller Subsystem Product
BTM420 - Limited Modular Approval
FCC/IC & CE
BTM421 - Full Modular Approval
ORDERING INFORMATION
BTM420 Bluetooth HCI Data Module (external antenna)
BTM421 Bluetooth HCI Data Module (with integrated antenna)
DVK- BTM420 Development Kit (external antenna)
DVK- BTM421 Development Kit (with integrated antenna)
The details contained within the document are subject to change. Download the product
specification from www.lairdtech.com/wireless for the most current specification.
global solutions: local support
TM
USA: +1.800.492.2320
Europe: +44.1628.858.940
LWS-DS-BTM420-421 0310
Asia: +852.2268.6567
Any information furnished by Laird Technologies, Inc. and its agents is believed to be accurate and reliable. All specifications are subject to change without notice.
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and Conditions of sale in effect from time to time, a copy of which will be furnished upon request. Copyright 2010 Laird Technologies, Inc. All Rights Reserved. Laird,
wirelessinfo@lairdtech.com
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www.lairdtech.com/wireless