Bluetooth Modules

Bluetooth modules enable easy integration of Bluetooth wireless technology in customer applications. Various interfaces like UART, I2C, GPIO or USB can be used to connect the module to other components.

LM930

LM930 / LM931 –
Bluetooth 4.1 Smart / Bluetooth Low Energy module

The LM930 / LM931 are standalone modules combining a Bluetooth Low Energy Radio, the Bluetooth 4.1 stack software and a microcontroller to run the application firmware. External peripherals can be connected using various I/O interfaces.

Bluetooth 4.1 Smart / Bluetooth Low Energy
Programmable with application firmware
U.FL connector (LM930) or chip antenna (LM931)

LM931

LM951

LM951 / LM961 –
Bluetooth 4.1 Smart Ready dual mode module

The LM951 / LM961 are Bluetooth 4.1 Smart Ready modules supporting both “classic” Bluetooth and Bluetooth Low Energy communication. With this dual mode capability, the modules can connect to a variety of different devices and can even act as a gateway between Bluetooth and BLE devices.

Bluetooth 4.1 Smart Ready / dual mode
Programmable with application firmware
Chip antenna

LM961

LM746 –
Bluetooth 4.1 Smart Ready Audio module

The LM746 is an extremely versatile and cost effective solution to transfer audio data wirelessly between audio devices, using a Bluetooth classic and Bluetooth Smart (LE) connection. It’s sound enhancement features make it a perfect fit within your premium audio device.

Bluetooth 4.1 Smart Ready / dual mode
Bluetooth profiles: HSP, HFP, A2DP, AVRCP, PBAP, MAP, SPP
Analog and Digital (I2S, PCM, SPDIF) Stereo audio interface
Chip antenna

LM747 –
Bluetooth 4.1 Smart Ready Audio module

LM747 is a Bluetooth 4.1 Smart Ready Class 2 audio module. This module is ideal for multimedia applications in vehicle infotainment systems, handsfree kits, headsets, Bluetooth speakers and Bluetooth Stereo Headsets and much more.

Bluetooth 4.1 Smart Ready / dual mode
Bluetooth profiles: HSP, HFP, A2DP, AVRCP, PBAP, MAP, SPP
Analog Stereo audio interface
Pad for external antenna connection

M780 –
Bluetooth 2.1 SMT module with onboard antenna

The LM780 is an integrated Bluetooth module running LM’s own tried and tested stack software for Serial Port Profile (SPP). With the onboard antenna it can support distances up to 25m while offering a low power consumption.

Bluetooth 2.1 + EDR or Bluetooth 2.0 + EDR standards
Bluetooth Class 2 with onboard antenne, up to 25m range
Low Power consumption: 0.9 mA sleep, 19mA active

Product Overview

	Bluetooth				RF		Profiles				Interface						Antenna			Size mm
Produkt	BT Standard	Basic Rate	Enh. Data Rate	Low Energy	Bluetooth Class	Output dBm	SPP	HID	Audio	GATT	UART	USB	I2C	Digital I/O	Analog I/O	Audio	Chip Antenna	U.FL connector	Antenna pin	Size mm
LM930	4.1			X	1	9				X	X		X	9	3			X		22 x 10.1
LM931	4.1			X	1	9				X	X		X	9	3		X			22 x 10.1
LM951	4.1	X	X	X	2	2	X			X	X	X	X	6	3		X			18.9 x 12.7
LM961	4.1	X	X	X	1	10	X			X	X	X	X	6	3		X			18.9 x 12.7
LM746	4.1	X	X	X	2	2	X		X	X	X	X		8	2	X	X			23.9 x 16
LM747	4.1	X	X	X	2	2	X		X	X	X	X		8	1	X			X	12.4 x 12.4
LM780	2.1 2.0	X	X		2	4	X	#			X						X			27.7 x 15.2