Brief Introduction to Radio Wind Instrument Solution 2.4G/5.8G/UHF Electric Wind Instrument Solution | Tianhui Micro Technology

2.4G Electric Blowpipe Solution

Tianhui Micro Technology uses the Galfa A8810S1 in this solution. The A8810S1 is a pair of long-distance 2.4G wireless audio transmission modules. The module's professional RF circuit design and unique software frequency hopping mechanism effectively improve the RF's anti-interference ability and transmission distance. The module has a built-in high-performance audio converter, supports 48K/16bit high-quality audio sampling, and realizes uncompressed digital audio transmission. The A8810S1 has an onboard EEPROM and a reserved interface to support software online burning. The module retains the GPIO, UART and I2S digital audio interfaces, which facilitates the expansion of functions.

2.400-2.483GHz ISM band/GFSK modulation

Support 3Mbps RF audio data transmission

Support 26 channels of automatic frequency hopping

Support 1 to 1, 1 to 6 and 1 to many broadcast modes

Support 48K Hz/16bit/dual-channel high-quality audio sampling

Frequency response 20-20KHZ, signal-to-noise ratio 85db, distortion 0.5%

Support two-way data transmission and control

The minimum audio data delay is 12.5ms

Supports adjustable audio delay, suitable for surround speakers

Outdoor straight-line transmission distance is greater than 50 meters

Reserved GPIO, UART, I2S interfaces, support software online burning and reset

5.8 electric blowpipe solution (customizable 5.8G+Bluetooth dual mode)

The solution is based on the Weifeng ETK52L 32-bit RF controller module of Tianhui Microtech, which is used for stereo audio running in the 5.8/5.2GHz frequency band. It supports two 24bit and comes with data encryption, pairing function, two-way data messaging, enhanced RF interference detection and automatic frequency allocation. The solution supports Bluetooth 5.0, is compatible with Bluetooth 4.2 and V2.1+VDR, and supports Bluetooth Piconet and Scatternet networking protocols.

UHF electric blowpipe solution

UHF electric blowpipe solution Tianhui Micro uses Quantum KT0641 (transmitter)/KT0651 (receiver). KT0641 uses unique low-power technology to further reduce BOM costs and integrates 15-band audio equalizer. The Echo function produces an echo effect. KT0651 further reduces PCB area and improves product reliability and consistency.

KT0641 Features

Integrated audio AGG, audio ALC functions to improve dynamic range and noise performance

· Optimized the audio compressor, which can effectively optimize tail sound, distortion and noise when used with KT0651

· Optimized the audio compressor, which can effectively optimize tail sound, distortion and noise when used with KT0651

Added microphone audio signal detection to achieve automatic mute and shutdown when there is no audio

Auxiliary digital channel, with KT0651, can realize automatic frequency binding, remote control, code binding, information transmission and other functions

KT0651 Features

Integrated Line-In interface, external audio source can be input to KT0651 for processing and mixed with the receiver for output

Optimize audio compressor, and cooperate with KT064X series products to effectively reduce tail sound, distortion and background noise

Integrated battery detection alarm and automatic shutdown function

·Preset 50 frequencies to automatically search for valid stations, and record the transmitter ID to achieve 1-to-1 pairing