BTM420/421
Bluetooth
®
Data Module
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/bluetooth
5
Laird
Americas: +1-800-492-2320
Europe: +44-1628-858-940
Hong Kong: +852 2923 0610
S
PECIFICATIONS
Detailed Specifications
Table 1: Detailed Specifications
Categories
Feature
Implementation
Wireless Specification
Bluetooth®
Version 2.1+EDR
Transmit Class
Class 2
Frequency
2.402 – 2.480 GHz
Channels
79 channels Frequency Hopping
Adaptive Frequency Hopping
Max Transmit Power
+4 dBm at antenna pad – BTM420
+4 dBmi (TBC) from integrated antenna –
BTM421
Receive Sensitivity
-84dBm
Range
30m
Data Transfer Rate
Up to 2.1 Mbps
Antenna Modes
External Antenna
50 Ohm matched SMT pad – BTM420
Integrated Antenna (option)
+0 dB multiplayer ceramic (TBC) – BTM421
USB Interface
Compliance
Version 1.1
Support
Version 2.0
Supply Voltage
3.1 V to 3.3 V
General Purpose
Interface
I/O
2 general purpose I.O pins for LEDs
Audio
Support
3 PCM Channels @ 64kbps
SCO Channels
Support SCO and eSCO
PCM Interface
Configurable as master or slave
8 bit A-law
8 bit µ-law
13 bit linear
PCM Clock available when in slave mode
Protocols and Firmware Bluetooth Stack
V2.1 compliant
Connection Modes
Point to point (cable replacement)
Multipoint – max 7 slaves
