Smart watches are fashionable accessories that integrate cutting-edge technology. They have a exquisite appearance and can be connected to mobile phones to receive notifications, play music, and make calls. They can accurately monitor sports and health data. Adaptable to various life scenarios, they are your intimate companions, making life more intelligent and convenient.
System Structure
Realtek smart watch solution based on RTL8773E uses a single BT SoC as the main controller. It connects to peripherals via interfaces such as SPIC, I2C, SPI, GPIO, I8080, MIC, and DAC, and connects to phones via Bluetooth to create a highly integrated smart watch solution.
Realtek provides reference designs, SDK, and toolchains, characterized by high integration and ease of development.
Application Scenario
Advantages of Solution
A 2.5D hardware graphics engine that supports rendering, scaling, rotating, deforming, and other processing of graphics.
CPU computing power and MCU memory provide sensor algorithms or external device control capabilities.
DSP computing power provides powerful speech and audio processing capabilities.
Supports interfaces such as GPIO/I2C/SPI/UART/ADC/DAC/MIC/I2S/SPIC/DC, and can be externally connected to a wide range of devices.
Includes Bluetooth LE Bluetooth Legacy Audio、LE Audio， Implement product requirements with the latest technology.
Provide HDK and a fully functional SDK development package that includes complete product prototype engineering, mobile APP SDK, OTA tools, and production tools, reducing customer development work and accelerating project implementation.
Start implementing my smart watches application
| RTL8773EWE | RTL8773EWE-VP | RTL8773EWE-VS | |
|---|---|---|---|
| MCU | RM300F, 100MHz | RM300F, 100MHz | RM300F, 100MHz |
| DSP | HiFi mini, 200MHz | HiFi mini, 200MHz | HiFi mini, 200MHz |
| SRAM | 800kByte | 800kByte | 800kByte |
| PSRAM | N | 4MByte | 8MByte |
| BT Version | 5.3 | 5.3 | 5.3 |
| Tx power | +13dBm | +13dBm | +13dBm |
| RX sensitivity | -95.8dBm (1M BR) -95.6dBm (2M EDR) -100.6dBm (1M BLE) -96.5dBm (2M BLE) | -95.8dBm (1M BR) -95.6dBm (2M EDR) -100.6dBm (1M BLE) -96.5dBm (2M BLE) | -95.8dBm (1M BR) -95.6dBm (2M EDR) -100.6dBm (1M BLE) -96.5dBm (2M BLE) |
| GPIO | 38 | 38 | 38 |
| I2C | 3 | 3 | 3 |
| UART | 3 | 3 | 3 |
| SPI | Master*3, 10MHz Slave*1, 10MHz | Master*3, 10MHz Slave*1, 10MHz | Master*3, 10MHz Slave*1, 10MHz |
| SPIC | 1, 80MHz | 1, 80MHz | 1, 80MHz |
| Display Controller | QSPI/OPI, DTR, 70MHz | QSPI/OPI, DTR, 70MHz | QSPI/OPI, DTR, 70MHz |
| AMIC | 2 | 2 | 2 |
| DAC | 1 | 1 | 1 |
| Package (mm) | QFN68, 7x7^2 | QFN68, 7x7^2 | QFN68, 7x7^2 |
