RealMCU

Realtek's Dual-Mode BT SOC series is a single-chip solution that integrates RF, PMU, CODEC, USB, high-performance CPU, and DSP, while also providing a rich set of IO interfaces. It boasts powerful computational capabilities, supports multiple algorithms, and simultaneously supports dual-mode Bluetooth (classic Bluetooth and Bluetooth Low Energy) as well as BLE audio technology, providing users with stable and reliable wireless transmission. For applications that require high-speed data transmission and low-power, small data transmission, the SOC series offers flexibility and reliability.

The SOC series finds wide applications in various fields that require wireless connectivity, audio processing, and image display functions, such as open wireless earphones (OWS), stereo headphones, gaming headphones, speakers, wearable devices, charging cases with smart screens, and smart dashboards, among others. Realtek also meets the diverse needs of different customers by offering differentiated solutions in terms of package size, GPIO count, SDK tools, audio algorithms, image processing algorithms, power management, and amplifiers.

With its high integration, strong computational capabilities, stable and reliable wireless transmission, and flexibility, the SOC series provides users with high-performance solutions in various application domains.

Product Comparison

	RTL8763E & RTL8773ESL	RTL8773E	RTL8773D
MCU	Real-M300, (CM33 Like) 32-bit ARMv8M mainline processor@100MHz	Real-M300+FPU (CM33Like) 32-bit ARMv8M mainline processor@100MHz	ARM Cortex-M4F@160MHz
DSP	Tensilica HiFi mini compatible@200MHz	Tensilica HiFi mini compatible@200MHz	Tensilica Hi-Fi mini@320MHz+Tensilica HiFi4@320MHz
Flash	MCM 4MB/External	External	MCM 8MB/16MB
SRAM	532KB shared SRAM	800KB shared SRAM	DSP+MCU total 3MB
PSRAM	0/MCM 4MB (RTL8763EW-VP)	0/MCM 4MB/MCM 8MB	0
2D/2.5D Engine	N	Y	N
IDU (Image Decompressor Unit)	N	Y	N
BT Version	BT 5.3	BT 5.4	BT 5.4
PAwR	N	Y	N
BLE Audio	RTL8763EFL, RTL8763EAU, RTL8763EW-VP only	Y	Y
Max Tx Power	10dBm@BR	13dBm@BR	12.5dBm@BR
I8080	Y (RTL8763EWE/RTL8763EW series)	Y	N
RGB888	N	Y	N
Display Resolution (RGB565)	QSPI, 50MHz, 454x454, 16bits, 45fps	QSPI, 80MHz, 466x466, 16bits, 60fps or 800×480, 16bits, 30fps	N
RAMLESS LCD	N	Y	N
Security Engine	TRNG Secure Boot(RSA-2048) SHA256 AES128/256	TRNG Secure Boot(RSA-2048) SHA256 AES128/256	TRNG Secure Boot(RSA-2048) SHA256 AES128
SM3 Encryption	N	Y	N
TRNG	Y	Y	Y
AES 128/256	HW	HW	HW
A-MIC Number	x3	x2	x4
AUX in	L and R 2 channels	L and R 2 channels	L and R 2 channels
SPK/DAC	Class D x2	DAC out x1	Class AB x2 + Class D x2
D-MIC Number	x4	x4	x6
I2S	x2 Formats : Left-Justified, PCM mode-A, PCM mode-B Application sampling rate : 48KHz Master and slave mode No master clock (MCLK) output	x2 Formats : Left-Justified, PCM mode-A, PCM mode-B Application sampling rate : 48KHz Master and slave mode No master clock (MCLK) output	x4 Formats :Left-justified, right-justified, PCM mode-A, PCM mode B Application sampling rate : up to 192KHz master clock (MCLK)
ANC	FF + FB Hybrid	N	Hybrid
GPIO	9/12/38/80	38	50
AUXADC	4CH 12bits	4CH 12bits	8CH 12bits
I2C	x3 master/Slave mode Max data rate at 400Kbps	x3 master/Slave mode Max data rate at 400Kbps	x3 master/Slave mode Max data rate at 400Kbps
PWM	x8	x12	x16
UART	x3 HW flow control max baud rate at 4MHz	x3 HW flow control max baud rate at 4MHz	x4 HW flow control max baud rate at 4MHz
SPI	x3 SPI0: Master + slave role SPI1: Master only SPI2 :Master only	x3 SPI0: Master + slave role SPI1: Master only SPI2 :Master only	x3 SPI0: Master + slave role SPI1: Master only SPI2 :Master only
SDIO	x1 (RTL8763EWE/RTL8763EW series)	x1	x1
USB	USB2.0( RTL8763ESE, RTL8763EAU and RTL8763EW-VC only )	N	USB2.0
SPDIF	N	N	Y
Sleep LED	Y	N	Y
SPIC	x2 (RTL8763EWM, RTL8763EWE series) x4 (RTL8763EW series)	x2	x3
CAN Bus	N	Y	N
Operation Temperature	-20°C to 70°C	-20°C to 85°C	-20°C to 70°C
Operation Voltage	2.8V to 4.5V (VBAT)	2.8V to 4.5V (VBAT)	3V to 5V (VBAT)
Package (mm)	QFN50, 4x6; QFN40, 4x6; QFN68, 7x7; BGA149, 7x7	QFN68, 7x7	BGA184, 4.9x6

SDK

The Realtek Dual-Mode BT SoC SDK is a software development kit specifically designed for developing Bluetooth and audio applications in embedded systems. This SDK integrates drivers, wireless protocol stacks, API documentation, sample code, and development tools, providing customers with comprehensive development support. Its high-performance Bluetooth dual-mode protocol stack fully supports traditional Bluetooth, Bluetooth Low Energy, and Bluetooth Low Energy audio technologies, making it widely applicable to various scenarios such as headphones, speakers, wearable devices, smart voice recorders, charging cases, dashboards, and more. The SDK features a rich set of APIs and examples, offering diverse software solutions tailored to multiple applications, assisting developers in quickly getting started.

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Hardware Kit

Realtek's HDK is a tool designed specifically for customers to assist with hardware design planning. It includes block diagrams, schematics, hardware design guidelines, PCB layout, routing, and stackup recommendations, RF design guidelines, a hardware approved vendor list (AVL), a reference BOM, and production tools. It provides guidance from entry-level design to mass production, enabling customers to complete hardware design and testing in the shortest possible time.

Tools

Realtek provides a comprehensive solution toolkit for developers and users, including powerful programming tools, flexible log debugging tools, configuration management tools, and smartphone applications. This toolkit aims to enhance development efficiency and product performance. It is tailored for mainstream operating systems and offers selective platform support.

Programming and Production Tools

The programming and production tools ensure quick and reliable firmware writing. Whether used by developers for firmware programming or in large-scale production for efficient processing, these tools meet all requirements effortlessly.

MPPG Tool: Used for RD programming and mass-production programming.
CFU Download Tool: Used for firmware upgrade of the chip using USB.

Log Analysis Tools

Log analysis tools provide simple and efficient solutions for problem localization and resolution, serving as a reliable troubleshooting assistant for users.

Debug Analyzer: Used for SoC logging and debugging.

Configuration Management Tools

Configuration management tools simplify the configuration process to ensure that devices are operating at optimal conditions.

MCUConfig Tool: Used for OEM system configuration and SoC application parameter configuration.
DSPConfig Tool: Used for generate DSP configuration images.
ANC Design Tool: Used for generate ANC configuration images.
ANC MP Tool: Support reading ANC gain, writing ANC gain to RAM, or downloading ANC gain to Flash.

Smartphone Applications

Smartphone applications provide an intuitive mobile interface, serving both as powerful developer tools and as a personalized control center for users. Users can easily manage devices, adjust performance, and make diverse settings for an exceptional personalized experience.

Audio Connect APP: Support Android and iOS platforms. It offers features such as EQ tuning and hearing settings to meet the needs of audio personalization and various hearing conditions, along with button and other configurations to match individual operational habits.
OTA APP: Support Android and iOS platforms. It provides convenient and secure firmware upgrade services for various products.

Tools and corresponding documentation can be accessed via RealMCU. For specific functional or operational inquiries about particular tools, please refer to the official user manuals or contact Realtek technical support.

Typical Applications

OWS Headset