Introduction

2.4GHz wireless audio module is a highly integrated digital core module. It can develop wireless conference call through Intelligent,Wireless technology, which provide high quality wireless audio for users, key features includes, supporting multiple interfaces such as I2S, USB, embedded RF IC and other key blocks such as I2C control interface, and low voltage. The .2.4GHz wireless audio module provides multiple interfaces and dual transmitter and receiver, which gives high quality and seamless audio transmission. It is the information process synchronization. Furthermore, the data are modulated and radiated at 2.4GHz ISM band.In the receiver, Rx receives RF signal, demodulated and processed to restore the transmitted signal, and then streamed as digital audio output. Tx receives digitized stereo as input, which is packetized and processed for synchronization and data integrity. After that, the data are modulated and radiated at 2.4GHz ISM band.In the receiver, Rx receives RF signal, demodulated and processed to restore the transmitted signal, and then streamed as digital audio output.

Key Features

RF Features

• Worldwide 2.4 GHz ISM band operation by 2406 MHz ~ 2472MHz.
• Up to 2 Mbps RF data rate
• GFSK modulation.
• Long distance > 50m (Line of sight)
• Broadcasting mode
• RF frequency hopping in 34 channels
• Embedded uP/MAC mode settings IA2 RF normal operation mode that support 15 hopping channel/Per Sequence. It´s included 4 Sequence group/per system.
• According FHSS specification protocol.

Audio Quality and Interface

• Support Compressed audio
• Analog output: THD+N up to -60dBm, SNR up to 92dBm.
• Support I2S (Audio In/Out) and USB (Tx Audio Input) with 2 channels downstream.
• Support I2S downstream 32/44.1/48KHz at resolution of 16 bits (2 channels).
• 2.4GHz wireless audio module that support in master mode for Tx and Rx audio interface.
• USB 1.1 device controller, Supports LPCM and compressed format at 16-bit 2-channels at sampling frequency of 32, 44.1, and 48KHz downstream.
• Control Channel (CCH) up to 2 kbps for downstream by I2C interface via wireless.

General Features

• Programmable audio latency 20ms/50ms
• Integrated pipelined 8-bit CPU, with embedded 4K bytes program RAM, with embedded RFIC in IA2 audio processor.
• Serial 4K byte EEPROM for Boot Register Update.
• I2C interface support blank EEPROM code download, External I2C device read/write, and data exchange with external MCU (By IA2 EVB).

Tx Charging Features (Option)

• Support Rechargeable size Ni-MH battery for 900mAH to 1000mAH capacity by Tx module internal charging circuit and firmware control.

Applications

• Wireless Headphone
• Wireless HTiB
• Wireless Mini-Combo
• Wireless Outdoor Speaker
• Wireless Audio Sender

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