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Dual-Mode BT

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

BT version
BT 5.3
BT 5.4
BT 5.4
BLE audio
RTL8763EFL, RTL8763EAU, RTL8763EW-VP only
Y
Y
PAwR
N
Y
N
Max Tx Power
10dBm@BR
13dBm@BR
12.5dBm@BR
Package (mm)
QFN50 4x6 QFN40 4x6 QFN68 7x7 BGA149 7x7
QFN68 7x7
BGA184 4.9x6
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
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
SRAM size
532KB shared SRAM
800KB shared SRAM
DSP+MCU total 3MB
Flash size
MCM 4MB/External
External
MCM 8MB/16MB
PSRAM size
0/MCM 4MB (RTL8763EW-VP)
0/MCM 4MB/ MCM 8MB
0
Available GPIO Number
9 / 12 / 38 / 80
38
>60
I/O ADC
4CH 12bits
4CH 12bits
8CH 12bits
USB
USB2.0( RTL8763ESE, RTL8763EAU and RTL8763EW-VC only )
N
USB2.0
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)
I8080
Y (RTL8763EWE/RTL8763EW series)
Y
N
RAMLESS LCD
N
Y
N
Display Resolution (RGB565)
QSPI, 50MHz 454x454, 45fps
QSPI, 80MHz 500x500, 60fps
N
RGB888 interface
N
Y
N
2.5D Engine
N
Y
N
IDU (Image processor unit)
N
Y
N
CAN Bus
N
Y
N
SPDIF
N
N
Y
A-MIC number
x3
x2
x4
D-MIC number
x4
x4
x6
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
ANC
FF + FB Hybrid
N
Adaptive ANC
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
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
Sleep LED
Y
N
Y
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
SPIC
x2 (RTL8763EWM, RTL8763EWE series) x4 (RTL8763EW series)
x2
x3
Operation voltage
2.8V to 4.5V (VBAT)
2.8V to 4.5V (VBAT)
3V~5V (VBAT)