Overview
The CC8531RHAR from Texas Instruments is a part of the CC85xx family, which utilizes PurePath™ Wireless technology to provide robust, high-quality, short-range 2.4 GHz wireless digital audio streaming. This device is designed for low-cost single-chip solutions and can operate autonomously or be controlled by an external host MCU. It supports various audio applications, including wireless headphones, headsets, loudspeakers, and microphones, ensuring gap-less and robust audio streaming in diverse environments.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Operating Ambient Temperature Range | -40 | 85 | °C | |
| Operating Supply Voltage | 3.0 | 3.6 | V | |
| RF Frequency Range | 2400 | 2483.5 | MHz | |
| Data Rate | 5, 2 | Mbps | ||
| Audio Sample Rate | 32, 40.275, 44.1, 48 | kHz | ||
| Audio Latency | 10.7 | ms | ||
| Receiver Sensitivity (5 Mbps) | -83 | dBm | ||
| Receiver Sensitivity (2 Mbps) | -86 | dBm | ||
| Package Type | VQFN RHA 40 |
Key Features
- Autonomous Operation: Can operate without an external MCU, or can be controlled by an external host MCU for greater flexibility.
- Audio Support: Supports digital I2S audio interface with 1 to 4 audio channels, and USB audio support for 32, 44.1, and 48 kHz sample rates.
- Robustness and Coexistence: Features adaptive frequency hopping, forward error correction, buffering and retransmission, and error concealment for excellent robustness and coexistence with other wireless technologies.
- USB Support: Full-speed USB Audio device with Basic Audio Device Class support and HID functions for remote control, mouse, and keyboard functionality.
- Compliance: Suited for systems targeting compliance with worldwide radio frequency regulations such as ETSI EN 300 328, FCC CFR47 Part 15, and ARIB STD-T66.
- Power and Interface: Supports I2C, I2S, SPI, and USB interfaces, with programmable output power up to +3.5 dBm and sensitivity down to -83/-86 dBm.
Applications
- Wireless High-Quality Digital Audio: Ideal for wireless headphones, headsets, loudspeakers, and microphones.
- Wireless Point-to-Point Audio Link: Suitable for applications requiring direct audio links between devices.
- Wireless 2.1 Speaker Systems: Supports up to 4 channels for comprehensive audio systems.
- USB Audio Devices: Compatible with USB headphones, headsets, and microphones.
Q & A
- What is the operating frequency range of the CC8531RHAR?
The CC8531RHAR operates in the 2.4 GHz frequency range, specifically from 2400 MHz to 2483.5 MHz.
- What are the supported data rates for the CC8531RHAR?
The device supports data rates of 5 Mbps and 2 Mbps.
- What is the maximum operating temperature for the CC8531RHAR?
The maximum operating temperature is 85°C.
- Does the CC8531RHAR support USB?
Yes, it supports full-speed USB Audio and Basic USB HID device class.
- What audio sample rates are supported by the CC8531RHAR?
The device supports audio sample rates of 32 kHz, 40.275 kHz, 44.1 kHz, and 48 kHz.
- What is the typical audio latency of the CC8531RHAR?
The typical audio latency is down to 10.7 ms.
- Can the CC8531RHAR operate autonomously?
Yes, it can operate autonomously without an external MCU or be controlled by an external host MCU.
- What regulatory compliance does the CC8531RHAR meet?
It is suited for systems targeting compliance with ETSI EN 300 328, FCC CFR47 Part 15, and ARIB STD-T66.
- What is the package type of the CC8531RHAR?
The package type is VQFN RHA 40.
- Does the CC8531RHAR support multiple audio channels?
Yes, it supports up to 4 audio channels.
