BTM420 Datasheet, PDF (5/21 Pages) Laird Tech Smart Technology – Changes and Revisions

BTM420/421
Bluetooth^® Data Module Hardware Integration Guide
2 SPECIFICATIONS
2.1 Detailed Specifications
Table 1: Detailed Specifications
Categories
Feature
Wireless Specification
Bluetooth®
Transmit Class
Frequency
Channels
Max Transmit Power
Antenna Modes
USB Interface
General Purpose
Interface
Audio
Receive Sensitivity
Range
Data Transfer Rate
External Antenna
Integrated Antenna (option)
Compliance
Support
Supply Voltage
I/O
Support
SCO Channels
PCM Interface
Protocols and Firmware ^{Bluetooth Stack}
Connection Modes
Implementation
Version 2.1+EDR
Class 2
2.402 – 2.480 GHz
79 channels Frequency Hopping
Adaptive Frequency Hopping
+4 dBm at antenna pad – BTM420
+4 dBmi (TBC) from integrated antenna –
BTM421
-84dBm
30m
Up to 2.1 Mbps
50 Ohm matched SMT pad – BTM420
+0 dB multiplayer ceramic (TBC) – BTM421
Version 1.1
Version 2.0
3.1 V to 3.3 V
2 general purpose I.O pins for LEDs
3 PCM Channels @ 64kbps
Support SCO and eSCO
Configurable as master or slave
8 bit A-law
8 bit µ-law
13 bit linear
PCM Clock available when in slave mode
V2.1 compliant
Point to point (cable replacement)
Multipoint – max 7 slaves
Table 2: Detailed Specifications
Categories
Feature
Current
Consumption
Supply Voltage
Data Transfer
Low Power Sniff Mode
Supply
Coexistence /
Compatibility
WLAN (802.11)
Connections
Interface
Embedded Wireless Solutions Support
Center: http://ews-support.lairdtech.com
www.lairdtech.com/bluetooth
Implementation
Typically 32 mA
Less than 2.5 mA
3.0 V – 3.3 V DC
2-wire and 3-wire hardware coexistence schemes supported
Surface Mount Pads
5
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