RTL8763E Series RTL8763E Series
RTL8763E Series

Introduction

RTL8763E series are Realtek's dual-mode Bluetooth MCU solutions with high-quality audio and rich external interfaces, which can quickly upgrade the wireless Bluetooth audio transmission functionality to a media device and are also suitable for mobile device solutions. It is suitable for Auracast transmitter/receiver/assistant, audio toys, LCD screen battery chargers, Bluetooth helmets, and Bluetooth audio receivers for home stereo or speakers.

DESCRIPTION

CHIP

Highlights

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Equipped with a transmitter and a receiver

Having both a transmitter and a receiver can increase the variety of products designed by customers. Users can also choose a mode of operation through dynamic switching.

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Integrates multiple Bluetooth modes

It contains Bluetooth LE, Bluetooth Legacy, LE Audio and Auracast broadcast audio mode, thus fulfilling product requirements with state of art Bluetooth technology.

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Rich external interfaces

Supports I2S, Line In to connect audio data; while digital interfaces such as GPIO/I2C/UART/SPI can be connected to a wider range of sensors or external devices.

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Streamlined Development

Comprehensive SDK/HDK/Tools development kits, UI design tools, and supporting mobile APP projects. Provision of mature solutions. Provision of mature reference designs. Significantly reduces workload for customer project development, shortens development cycles, and accelerates project implementation.

Specifications

General Description
  • Bluetooth 5.3 core specification
  • BR/EDR/LE-1M/LE-2M
  • LE audio (depends on part number)
  • OTA (Over-the-Air) FW upgrade
  • Support speaker out
  • Analog mic input
  • Digital mic input
  • Built-in LDO for the I/O and FLASH memory
  • Built-in Li-Ion battery charger with up to 300mA charger current
MCU Platform
  • RealM300, 32-bit ARMv8M mainline processor, maximum frequency, max rate 100MHz
  • 532KB embedded shared SRAM
  • AES 128/256, SHA256, RSA-2048 security engine
  • embedded Flash 4MB (depends on part number)
  • Embedded PSRAM 4MB (depends on part number)
RF Performance
  • Max Tx Power 7.5 dBm @EDR 2M (refer to datasheet for details)
  • Max Tx Power 10 dBm @BLE (refer to datasheet for details)
  • RX sensitivity -97.5 dB (1M BLE)
  • RX sensitivity -94.5 dBm (1M BR)
  • RX sensitivity -94 dBm (2M EDR)
  • Fast AGC control to improve receiving dynamic range
Peripheral (depends on part number)
  • Flexible GPIO Design
  • Real Time Counter (RTC)
  • 4 CH 12 bits ADC
  • USB 2.0 (depends on part numbers)
  • I2C
  • I2S interface for external audio processor
  • UART
  • Line in, L/R channel
  • SPI
  • PDM interface for digital mic input
  • PWM
  • SDIO (depends on part numbers)
  • SPIC (depends on part numbers)
  • I8080 (depends on part numbers)
  • Available GPIOs: 9~59 pins depend on part numbers
Audio Codec Support
  • SBC codec
  • mSBC codec
  • LC3 codec (depends on part number)
  • MP3 decoder(depends on part number)
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RTL8763E Series

General Description
  • Bluetooth 5.3 core specification
  • BR/EDR/LE-1M/LE-2M
  • LE audio (depends on part number)
  • OTA (Over-the-Air) FW upgrade
  • Support speaker out
  • Analog mic input
  • Digital mic input
  • Built-in LDO for the I/O and FLASH memory
  • Built-in Li-Ion battery charger with up to 300mA charger current
MCU Platform
  • RealM300, 32-bit ARMv8M mainline processor, maximum frequency, max rate 100MHz
  • 532KB embedded shared SRAM
  • AES 128/256, SHA256, RSA-2048 security engine
  • embedded Flash 4MB (depends on part number)
  • Embedded PSRAM 4MB (depends on part number)
RF Performance
  • Max Tx Power 7.5 dBm @EDR 2M (refer to datasheet for details)
  • Max Tx Power 10 dBm @BLE (refer to datasheet for details)
  • RX sensitivity -97.5 dB (1M BLE)
  • RX sensitivity -94.5 dBm (1M BR)
  • RX sensitivity -94 dBm (2M EDR)
  • Fast AGC control to improve receiving dynamic range
Peripheral (depends on part number)
  • Flexible GPIO Design
  • Real Time Counter (RTC)
  • 4 CH 12 bits ADC
  • USB 2.0 (depends on part numbers)
  • I2C
  • I2S interface for external audio processor
  • UART
  • Line in, L/R channel
  • SPI
  • PDM interface for digital mic input
  • PWM
  • SDIO (depends on part numbers)
  • SPIC (depends on part numbers)
  • I8080 (depends on part numbers)
  • Available GPIOs: 9~59 pins depend on part numbers
Audio Codec Support
  • SBC codec
  • mSBC codec
  • LC3 codec (depends on part number)
  • MP3 decoder(depends on part number)

Part Number Comparison

Part Number
RTL8763ESE
RTL8763EAU
RTL8763EFL
RTL8763EWM
RTL8763EWE
RTL8763EWE-VP
RTL8763EW-VC
RTL8773ESL
RTL8763EWS

MCU

40MHz/80MHz/100MHz

40MHz/80MHz/100MHz

40MHz/80MHz/100MHz

40MHz/80MHz/100MHz

40MHz/80MHz/100MHz

40MHz/80MHz/100MHz

40MHz/80MHz/100MHz

40MHz/80MHz/100MHz

40MHz/80MHz/100MHz

MCM Flash

4MB

4MB

4MB

4MB

4MB

N

N

4MB

4MB

MCM PSRAM

N

N

N

N

N

4MB

N

N

N

BLE Audio

N

Y

Y

Y

Option

Option

Option

Y

Y

I8080

N

N

N

N

Y

Y

Y

N

N

A-MIC Number

×3

×2

×3

×2

×2

×2

×2

×3

×2

ANC

Hybrid

N

N

N

N

N

N

Hybrid

N

GPIO (max)

12

12

9

39

38

38

80

15

39

SDIO

N

N

N

N

Y, 1-bit mode

Y, 1-bit mode

Y, 1-bit and 4-bit mode

N

N

USB

Y

Y

N

Y

N

N

Y

N

Y

SPIC

N

N

N

×2 SPIC0, SPIC1

×2 SPIC0, SPIC1

×2 SPIC0, SPIC1

×4 SPIC0~3

N

×2 SPIC0, SPIC1

Package (mm)

QFN50, 4×6

QFN50, 4×6

QFN40, 4×6

QFN76, 7×7

QFN68, 7×7

QFN68, 7×7

BGA149, 7×7

QFN50, 4×6

QFN76, 7×7

Applications

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Bluetooth Transmitter/ Receiver

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Bluetooth Helmet

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Bluetooth Transmitter/ Receiver

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Auracast Broadcast Transmitter/ Receiver

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Bluetooth Helmet

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Bluetooth Transmitter/ Receiver

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Auracast Broadcast Transmitter/ Receiver

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Bluetooth Helmet

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Bluetooth Transmitter/ Receiver

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Auracast Broadcast Transmitter/ Receiver

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Bluetooth Speaker

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LCD Screen Battery Charger

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Auracast Broadcast Assistant

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LCD Screen Battery Charger

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Auracast Broadcast Assistant

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LCD Screen Battery Charger

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Auracast Broadcast Assistant

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Bluetooth Transmitter/ Receiver

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Auracast Broadcast Transmitter/ Receiver

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Bluetooth Speaker

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Bluetooth Transmitter/ Receiver

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Auracast Broadcast Transmitter/ Receiver

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Bluetooth Speaker

Applications

Learn about the typical application cases that the RTL8763E series can be used to implement. Of course, there are more applications waiting for you to discover.

Automotive
Automotive

The Realtek in-vehicle application solution uses high-performance Bluetooth chips that support high-quality audio transmission, enabling smooth media playback and real-time hands-free calls inside the vehicle. This solution also supports voice assistant functionality, allowing drivers to control navigation, play music, or check the weather through voice commands, thereby enhancing driving safety. Based on different chip types and characteristics, Realtek can provide diverse solutions to meet the needs of various in-vehicle scenarios.

TWS
TWS

The Realtek true wireless stereo Bluetooth earphones use Realtek's high-performance Bluetooth chip to achieve fast and stable connections with low-loss transmission. With a professional audio processing solution, these earphones can deliver Hi-Fi stereo sound quality and are equipped with noise cancellation and ambient sound modes to ensure clarity in calls and music listening. Additionally, the earphones feature a low-power design to extend battery life, support touch controls, and have a lightweight and portable form, making them suitable for commuting, sports, and various other scenarios, providing users with a high-quality, unrestricted audio experience.

Smart Record Pen
Smart Record Pen

The Realtek latest smart record pen solution is compatible with both classic Bluetooth and Bluetooth Low Energy under the Bluetooth® Core 5.4 standard, and it supports Wi-Fi expansion. The solution uses a high-performance MCU and DSP to flexibly manage wired and wireless connections and efficiently run audio algorithms, making it suitable for various applications such as wireless audio transmission, recording, and storage. Additionally, the solution integrates features such as MIC recording, A2DP music recording, HFP call backup, and fast Wi-Fi transfer, and offers a wide range of peripheral interfaces including MIC, USB, SDIO, SPI, and I2S, allowing for extensive expansion in practical application scenarios.

Smart Helmet
Smart Helmet

The Realtek Bluetooth technology in driver's helmets is revolutionizing the riding experience by enabling hands-free communication and allowing riders to stream music and podcasts directly to their helmets. This enhances both safety and entertainment on the go. Its compact form factor makes it easy to install in limited spaces. The technology also features advanced noise and wind resistance capabilities to ensure clear audio, and it offers ample GPIOs for designers to develop intuitive, distraction-free interfaces.

Soundbar
Soundbar

The Realtek soundbar solution is based on profound chip design and system integration capabilities, offering excellent compatibility. This solution provides full-cycle technical support from development to mass production and ensures high consistency and stable quality through extensive mass production experience. The solution supports convenient multi-device Bluetooth connectivity and features a minimalist design. These characteristics collectively provide users with an easy and enjoyable high-quality auditory experience, suitable for modern home entertainment and commercial audio systems.

Smart Speaker
Smart Speaker

The Realtek smart speaker supports multiple audio input modes, including wireless connections like Bluetooth and wired connections like USB, Line-in, SPDIF, and I2S. This device not only supports local audio playback but can also share music in real-time with other devices, achieving seamless music sharing. Its design balances convenience and flexibility, making it suitable for various occasions and providing users with an efficient and enjoyable audio experience.

Smart Charging Case
Smart Charging Case

The Realtek smart charging case utilizes Bluetooth technology for seamless connection with headphones and smartphones. Equipped with Auracast™ technology, it revolutionizes the way users interact with audio devices, making it a critical node for audio information transmission. Additionally, the product supports various interfaces such as I2S, USB, ADC, SDIO, SPDIF, and QSPI, significantly enhancing versatility and providing robust support for a wide range of smart charging case products from entry-level to high-end.

Auracast™
Auracast™

Based on Bluetooth LE Audio technology, Realtek offers a one-stop solution covering Auracast™ Transmitter, Receivers, and Assistant roles. This solution features high integration and flexibility, supporting rich interfaces such as USB, I2S, SPDIF, and QSPI to adapt seamlessly to various audio sources and display devices. Leveraging its high-performance MCU and DSP capabilities, customers can rapidly develop diverse products suitable for public broadcasting and audio sharing scenarios.

Gaming Headset
Gaming Headset

The ultra-low latency dual-mode gaming headset integrates both 2.4G and Bluetooth connectivity options. In 2.4G mode, the headset connects to a computer or gaming console via a dedicated adapter, achieving precise audio-visual synchronization for an immersive gaming experience. In Bluetooth mode, the headset can stably connect directly to a smartphone, suitable for calls and high-quality music listening. The device is equipped with a one-touch switch function, allowing users to quickly handle incoming calls during gaming, easily balancing entertainment and daily communication needs.

Dual Mode Bluetooth Microcontroller
Dual Mode Bluetooth Microcontroller

The Realtek latest dual mode Bluetooth microcontroller solution, which is compliant with the Bluetooth® Core 5.4 standard, supporting both Classic Bluetooth and Bluetooth Low Energy. It integrates an extensive array of I/O interfaces — such as MIC, USB, Line-in, SPDIF, SDIO, SPI, and I2S — vastly expanding its application potential. Its high-performance MCU and DSP can flexibly manage both wired and wireless connections, and efficiently process audio algorithms to meet the diverse needs of wireless audio transmission and intelligent voice interaction.

Automotive
Automotive

The Realtek in-vehicle application solution uses high-performance Bluetooth chips that support high-quality audio transmission, enabling smooth media playback and real-time hands-free calls inside the vehicle. This solution also supports voice assistant functionality, allowing drivers to control navigation, play music, or check the weather through voice commands, thereby enhancing driving safety. Based on different chip types and characteristics, Realtek can provide diverse solutions to meet the needs of various in-vehicle scenarios.

TWS
TWS

The Realtek true wireless stereo Bluetooth earphones use Realtek's high-performance Bluetooth chip to achieve fast and stable connections with low-loss transmission. With a professional audio processing solution, these earphones can deliver Hi-Fi stereo sound quality and are equipped with noise cancellation and ambient sound modes to ensure clarity in calls and music listening. Additionally, the earphones feature a low-power design to extend battery life, support touch controls, and have a lightweight and portable form, making them suitable for commuting, sports, and various other scenarios, providing users with a high-quality, unrestricted audio experience.

Smart Record Pen
Smart Record Pen

The Realtek latest smart record pen solution is compatible with both classic Bluetooth and Bluetooth Low Energy under the Bluetooth® Core 5.4 standard, and it supports Wi-Fi expansion. The solution uses a high-performance MCU and DSP to flexibly manage wired and wireless connections and efficiently run audio algorithms, making it suitable for various applications such as wireless audio transmission, recording, and storage. Additionally, the solution integrates features such as MIC recording, A2DP music recording, HFP call backup, and fast Wi-Fi transfer, and offers a wide range of peripheral interfaces including MIC, USB, SDIO, SPI, and I2S, allowing for extensive expansion in practical application scenarios.

Smart Helmet
Smart Helmet

The Realtek Bluetooth technology in driver's helmets is revolutionizing the riding experience by enabling hands-free communication and allowing riders to stream music and podcasts directly to their helmets. This enhances both safety and entertainment on the go. Its compact form factor makes it easy to install in limited spaces. The technology also features advanced noise and wind resistance capabilities to ensure clear audio, and it offers ample GPIOs for designers to develop intuitive, distraction-free interfaces.

Soundbar
Soundbar

The Realtek soundbar solution is based on profound chip design and system integration capabilities, offering excellent compatibility. This solution provides full-cycle technical support from development to mass production and ensures high consistency and stable quality through extensive mass production experience. The solution supports convenient multi-device Bluetooth connectivity and features a minimalist design. These characteristics collectively provide users with an easy and enjoyable high-quality auditory experience, suitable for modern home entertainment and commercial audio systems.

Smart Speaker
Smart Speaker

The Realtek smart speaker supports multiple audio input modes, including wireless connections like Bluetooth and wired connections like USB, Line-in, SPDIF, and I2S. This device not only supports local audio playback but can also share music in real-time with other devices, achieving seamless music sharing. Its design balances convenience and flexibility, making it suitable for various occasions and providing users with an efficient and enjoyable audio experience.

Smart Charging Case
Smart Charging Case

The Realtek smart charging case utilizes Bluetooth technology for seamless connection with headphones and smartphones. Equipped with Auracast™ technology, it revolutionizes the way users interact with audio devices, making it a critical node for audio information transmission. Additionally, the product supports various interfaces such as I2S, USB, ADC, SDIO, SPDIF, and QSPI, significantly enhancing versatility and providing robust support for a wide range of smart charging case products from entry-level to high-end.

Auracast™
Auracast™

Based on Bluetooth LE Audio technology, Realtek offers a one-stop solution covering Auracast™ Transmitter, Receivers, and Assistant roles. This solution features high integration and flexibility, supporting rich interfaces such as USB, I2S, SPDIF, and QSPI to adapt seamlessly to various audio sources and display devices. Leveraging its high-performance MCU and DSP capabilities, customers can rapidly develop diverse products suitable for public broadcasting and audio sharing scenarios.

Gaming Headset
Gaming Headset

The ultra-low latency dual-mode gaming headset integrates both 2.4G and Bluetooth connectivity options. In 2.4G mode, the headset connects to a computer or gaming console via a dedicated adapter, achieving precise audio-visual synchronization for an immersive gaming experience. In Bluetooth mode, the headset can stably connect directly to a smartphone, suitable for calls and high-quality music listening. The device is equipped with a one-touch switch function, allowing users to quickly handle incoming calls during gaming, easily balancing entertainment and daily communication needs.

Dual Mode Bluetooth Microcontroller
Dual Mode Bluetooth Microcontroller

The Realtek latest dual mode Bluetooth microcontroller solution, which is compliant with the Bluetooth® Core 5.4 standard, supporting both Classic Bluetooth and Bluetooth Low Energy. It integrates an extensive array of I/O interfaces — such as MIC, USB, Line-in, SPDIF, SDIO, SPI, and I2S — vastly expanding its application potential. Its high-performance MCU and DSP can flexibly manage both wired and wireless connections, and efficiently process audio algorithms to meet the diverse needs of wireless audio transmission and intelligent voice interaction.

*Specific applications may can only be supported by certain chips

Honours

2022 COMPUTEX ‘IC and Component Best Choice’ Category Award Winner

2022 COMPUTEX ‘IC and Component Best Choice’ Category Award Winner