BT122 Bluetooth BR/EDR Modules (Classic)

Bluetooth BR/EDR Modules

Silicon Labs’ dual-mode Bluetooth basic rate/enhanced data rate (BR/EDR) - BLE modules target applications that require both Bluetooth Low Energy (LE) and Classic connectivity. These modules can connect to legacy devices that only support Bluetooth SPP or Apple® iAP3 profiles as well to devices that support Bluetooth LE. Silicon Labs BR/EDR modules integrate a high-performance Bluetooth radio, low-power ARM Cortex microcontroller and BGScript™ stack software.

BT122 can be used as a modem together with a separate host MCU, but applications can also be embedded into the built-in ARM® Cortex® MCU with the Silicon Labs BGScript scripting language.

Bluetooth BR/EDR Module Specs

Bluetooth:

Bluetooth v 4.2 compliant
Up to 6x BR/EDR connections or
Up to 7x BLE connections
1x BR/EDR + 6x BLE connections simultaneously
Scatternet: 3 simultaneous piconets

Interfaces:

UART host interfaces
UART and 2 x I2C peripheral interfaces
10 GPIO
Three channel 12-bit ADC
Integrated antenna
11.6 x 16.0 x 2.2 mm

Radio:

TX power up to +12 dBm / +8 dBm (BLE)
RX sensitivity -96 dBm
400-550 m LOS range

MCU Features:

ARM® Cortex®-M4
40 MHz Clock Speed
Low Active Mode Current: 63 µA/MHz
256 kB Flash, 32 kB RAM

Software Features:

BGAPI™ serial API over UART for NCP
BGScript™ scripting language
iWRAP compatibility for legacy WTxx
SPP, iAP3, HID Bluetooth profiles
Any GATT-based BLE profile
1 Mbps throughput over SPP

Certifications:

Bluetooth 4.2 Host and Controller
FCC, ISEDC, CE, S. Japan, S. Korea and SRRC (China)

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Part Number	TX Power (dBm)	RX Sensitivity (dBm)	Typical Range	Dimensions (mm)
BT122 Buy Dev Kit	+11 (BR/EDR) + 7 (BLE)	-95	400-550 LoS range	11.6 x 16.0 x 2.2

Part Number

TX Power (dBm)

RX Sensitivity (dBm)

Typical Range

Dimensions (mm)

BT122

Buy Dev Kit

+11 (BR/EDR) + 7 (BLE)

-95

400-550 LoS range

11.6 x 16.0 x 2.2

Dual-Mode BR/EDR Bluetooth LE Module Development Kit

The BT122 Dev Kit is a small form factor kit for evaluating BT122 dual-mode Bluetooth module. It is ideal for developing and prototyping IoT applications including point-of-sale, HID, industrial automation, medical and serial cable replacement.

Dual-Mode BR/EDR Bluetooth LE Module Development Kit