Case Study - RTL8752CJF Supporting a Low-Power Bluetooth Universal Remote Control

2022/9/28 16:13:13

 

Excellent RF Performance, Stable Connection Without Interference

The Bluetooth universal remote control in this cooperative case uses the RTL8752CJF ultra-low power solution, a remote control that can update the infrared code library through smart devices. The infrared database combined with the RTL8752CJF's ultra-low power consumption and excellent RF performance can be used to develop highly versatile remote control functions.

The RTL8752CJF offers the superior performance of a low-power ARM Cortex-M4F and a leading RF radio transceiver. The RF of this Realtek Bluetooth chip can help customers develop stable receive-and-transmit signals, automatically avoid excessive wireless interference, provide optimal receiving distance, easily complete pairing operations in a short time period, and also ensure the stable downloading of the remote controller infrared code. In addition, the ultra-low power consumption advantage of the RTL8752CJF can support longer standby time for remote control products and improve the practicality of the products.

The perfect universal remote-control experience across different multi-media devices

Remotec Technology Ltd. is a company with more than 30 years of experience in multi-RF protocol software, hardware manufacturing, IP and data solutions in the remote-control industry. They have developed universal remote controls which allow users to download infrared codes through a smartphone app from their cloud-based IR code database to corresponding AV devices, including TVs, Blu-ray™ players, streaming devices, cable TVs, satellite TVs, speakers and other AV The infrared codes are constantly being updated and thereafter transmitted to the remote control via Bluetooth from the user's smartphone, making the remote control evergreen and capable of controlling multiple AV devices through scenes with the additional feature of finding your remote control if it is lost at home.The RTL8752CJF integrates an infrared transceiver and hardware key scanning functions in a single IC, providing a highly integrated and optimal remote-control solution.

RTL8752CJF

RTL8752CJF is an ultra-low-power solution for Bluetooth low energy applications that combines the excellent performance of a leading RF transceiver with a low-power ARM Cortex-M4F and rich powerful supporting features and peripherals.

  • Supports Bluetooth 4.2
  • Supports OTA (Over-the-Air) update
  • ARM Cortex-M4 max frequency 40MHz
  • 160KB SRAM totally
  • Supports AES128/192/256 encryption/decryption engine
  • Tx Power: 0/4/7.5 dBm adjustable (refer to datasheet for details)
  • Rx Sensitivity: -97dBm BLE
  • Flexible GPIO
  • Hardware Keyscan and Quad-decoder
  • Embedded IR transceiver
  • SPI master/slave x 2; Timers x 8; I2C x 2; PWM x 8; UART x 2
  • 400ksps, 12bit, 8-channel AUXADC
  • I2S interface for external audio codec
  • I8080 interface for LCD
  • Internal 32K RCOSC to keep BLE link
  • Embedded PGA and audio ADC with 5-band EQ