Hardware Description

Wi-linktech Communication Technologies (Shanghai) Co.,Ltd
2019-06-01 www.wi-linktech.com 3 / 10
021-20255077
1 Summary
WLT8761M is a dual mode Bluetooth module, support for all Bluetooth profiles and BLE profiles.
WLT8761M is based on RTL 8761. It is a Bluetooth BR/EDR/BLE single chip solution. RTL8761 has
best-in-class RF performance (TX power, RX sensitivity, blocking) and advanced power
management for very low-power applications.
WLT8761M has a high efficiency audio SOC inside. It is BM5064 from MVSilicon which integrates
ARM Cortex-M3 MCU, Bluetooth stack, MP3/WMA decoder, MP2 encoder, OTG, SD/MMC card
controller, Audio DAC, Audio ADC, RTC in a single chip.
1.1 Functions
Bluetooth BR/EDR/LE
Support all Bluetooth profiles, such as SPP, SPPLE, HFP, MAP, PXP, A2DP, ANP, HID, AVRCP…
Embedded ARM Cortex-M3, running @ 96MHz
Built-in 128K byte SRAM
Support booting from SPI-flash and the firmware can be updated through SD or USB disk
Built-in MP2/MP3/WMA/FLAC(8/16/24bit)/WAV(IMA-ADPCM and raw PCM) decoder and
MP2 encoder
Embedded 20-bit Audio DAC and 16-bit Audio ADC
Built-in Capless Earphone driver
Built-in MIC amplify block with AGC
Support audio input
Onboard 2.4GHz antenna，support external antenna optional
Support AT+Command Set for Configuration
Single power supply: 3.35V~5V
Smallest size: 18x35mm
Flexible Software Platform, customized software service
1.2 Application Field
Bluetooth Speaker
True wireless stereo Audio system
Bluetooth handsfree
Fitness
Wireless POS
Portable printer