With the improvement of living standards, people are more and more emphasis on work and entertainment, and they have their own audio fever equipment to become many people's desires. However, the dazzling product model and tens of thousands of sales prices have made ordinary enthusiasts. In order to make everyone able to truly enjoy high-fidelity audiovisual fun, Dabin Friends launched a Radio Bluetic Bluetic Audio Solution Based on Realtek 8763BF. The program aims to meet the needs of ordinary audio enthusiasts, and strive to be easy to use. At present, the Bluetooth audio of non-destructive transmission is currently using non-destructive transmission, and the performance is clear and beautiful.
Diagram 1 - Exhibition board map of the Bluetooth chimetry audio solution based on Realtek products
The Bluetooth chimphicone sound refers to a wireless Bluetooth amplifier that is perfectly combined with the transistor. In addition to the composite of the tube + transistor, this program also matches the Realtek 8763BF wireless Bluetooth scheme, so it is a new application in the Bluetooth chip program.
The length of the transistor machine is that the high current, wide frequency band, its low frequency control, the analysis force at the time of processing large scenes, the layering and brightness, etc., the electronic pipe is superior to the electronic tube, and the electronic tube machine is smoother, there is sufficient air Feeling, there is a quota that is quite some people like. This solution is both compatible with the tonic of the tube and has a rapid explosive force of the transistor. Although the effect of using the Bluetooth wireless sound source will inevitably lose some sound quality, but through the perfect combination of the tube + transistor amplifier, the sound quality can be restored very realistic. By the new application of wireless Bluetooth, the chiller amplifier audio solution for electronic pipe and transistor machine is fully integrated and exerts their own strengths, but also makes up their own shortcomings.
Figure 2 - Solution block diagram of the Bluetooth chimetry audio solution based on Realtek products
Core technology advantage
Main chip: RTL8763BF; Packing: 5 x 5mm 2qFN 40 (RTL8763BM, RTL8763BF, RTL8763BFR), 6 x 6MM 2QFN 48 (RTL 8763BS) and 8 x 8mm 2QFN 68 (RTL8763BA), a spacing of 0.4mm;
Button Support: Maximum 8 key custom (Play, Mode, Next, PREV, VOL +, VOL-, FI, Connect);
Support DC5V wakeup;
Audio input interface: stereo AUX IN input, 2-way single-ended MIC IN, SPDIF RX input, PCM / I2SRX input, support I2S TX & RM 5 line mode;
Audio output interface: support stereo analog output AOUTL / AOUTR; support I2S TX digital output, support I2S TX & RX 5-wire mode; support AOUTL / AOUTR and I2S TX simultaneously, with volume adjustment; support headphone direct drive output;
Peripheral interface: 2-way UART TX / RX, 2-way PWM, 1 Road SPI, GPIOIO port supports SIRQ mode, supports LRADC sampling of 10-way 10BITS precision 2KHz frequency;
Charging interface: chip support charging function;
Firmware Storage: Built-in 1M BYTES SPI NOR FLASH as program memory, program can be upgraded; support plug-in SPI Norflash as program memory, maximum 16m BYTES SPI NOR FLASH;
Data Storage: ROM Size 768 KB, MCU RAM Size 16 KB X8, Data RAM + 8KB X2, Cache RAM & DSP RAM 8KB X2;
Program specifications
Bluetooth: supports stereo Bluetooth headset, supports Bluetooth RWS answering calls and play songs, support speaker terminal adjustment volume, pick / hanging phone, etc., the module has passed Bluetooth 4.2 dual-mode BQB certification and Bluetooth 5.0 Controller Component and Host Component BQB certification
AUX IN: Support AUX input
FM function: support FM input
User interaction: Support Speaker & Headphones Status Broadcast, Button Tone, Volume Adjustment, etc.
OTA Upgrade: Support User End OTA Upgrade
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