Vehicle systems are developing towards the direction of intelligence, information and network. The automobile market has become an important growth point in the electronic industry. Wireless communication technology has a wide application prospect in the automobile and other mobile systems. The on-board system is connected to the mobile phone through Bluetooth. With this solution, users can easily use the following functions through a Bluetooth mobile phone:
1. Hands-free phone. When the user enters the car, the vehicle system automatically connects to the user's mobile phone. When driving, users can dial, answer, hang up and adjust volume with voice control without hand operation, and make hands-free calls through the microphone and sound system in the car.
2, electronic navigation, users can connect with the car navigation through Bluetooth, to achieve data transmission function;
3, car music transmission, through mobile phone bluetooth connection car audio, can achieve high-quality stereo audio transmission function;
Shenzhen Only Creation Bosom friend combined with the needs of the car bluetooth market, developed a bluetooth chip can achieve the above functions, high quality, WT2605C-32N, the following by xiaobian for you to introduce it in detail;
Wt2605c-32n Small Size Bluetooth chip (4x4mm)
Wt2605c-32n Audio recording Bluetooth chip is an intelligent wireless audio data transmission, recording, MP3 audio playback product independently developed by Shenzhen Weicreate Zhixin Electronics co., LTD. It is a low-cost and efficient stereo wireless transmission scheme with high integration, small size, low power consumption, fast transmission speed and other characteristics, few peripheral components. Just add a few components in the chip periphery can achieve high quality stereo audio wireless reception.
WT2605 itself adopts driverless mode, customers only need to connect the chip into the application products, you can quickly achieve wireless music transmission, enjoy the fun of Bluetooth chip. Wt2605c-32n has three main features: built-in MP3 function, dual-mode Bluetooth function, UART serial port control. You can attach Flash, U disk and TF card.
Wt2605c-32n Features
(1) The operating voltage range of the chip is 3.0V-5.0V
(2) Standard UART communication interface, which can flexibly realize the specified address play, the specified file name play, the specified folder file play, volume level, up and down, play stop, memory switch and select the play mode, etc
(3) Using WT2605 as the core, and supporting SPI-Flash, TF card, U disk three storage modes; Spi-flash is stored as a fixed audio source area, which can be replaced with a USB disk
(4) USB interface to achieve the host, slave machine (USB card reader) automatic switch and USB sound card functions
(5) Support FAT, FAT16, FAT32 file system, support MP3, WAV (PCM, IMA-ADPCM)
(6) Access to the USB disk offline upgrade program Audio Bluetooth effective distance up to 20 m
(7) In MP3 mode, when there is a USB flash drive and TF card, it responds to the USB flash drive first and then the TF card
(8) Dual mode Bluetooth complies with Bluetooth 5.0 and BLE specifications
(9) Typical TX output power + 2dB
(10) The audio codec supports 16-bit stereo DAC and two-channel 16-bit ADC
(11) High-performance stereo, ADC has a signal-to-noise ratio of 90dB
(12) Three groups of multi-function 32-bit timer, support capture and PWM mode
(13) Support customized functions: key control mode, infrared control mode and so on
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