Texas Instruments SRC4392IPFBR 音频转换器，48-TQFP ?C 12 通道同步

SRC4392IPFBR 12-Channel Audio Converter Overview

The SRC4392IPFBR from Texas Instruments is a high-performance 12-channel audio converter with integrated sample rate conversion, engineered to solve synchronization challenges in large-scale audio systems. This device excels at aligning multiple audio streams, a critical function for maintaining clarity in professional setups with diverse input sources. 集成电路制造商 provides this advanced solution as part of its portfolio of professional audio semiconductors for complex systems.

Technical Parameters of SRC4392IPFBR

主要运行特点

• Operating Temperature Range: -40??C to +85??C
• Supply Voltage: 3.3V ??5%
• Power Consumption: 550mW (typical)
• Latency: <2ms (at 48kHz sample rate)
• Interfaces: I2C control, I2S, TDM, and left/right-justified
• Channel Matching: ??0.1dB (max)

Advantages Over Alternative Multi-Channel Converters

The SRC4392IPFBR offers significant advantages over conventional multi-channel audio converters. Its 12-channel configuration eliminates the need for multiple smaller converters in large systems, reducing component count, PCB space, and power usage while ensuring tighter synchronization across all channels.

Compared to converters with lower dynamic range, its 122dB performance ensures superior clarity across all 12 channels, preventing the channel-to-channel variation that can degrade immersive audio experiences. This consistency is critical for formats like 7.1.4 surround sound, where even minor differences between channels break the illusion of spatial audio.

Unlike many multi-channel alternatives limited to 96kHz, its 8kHz to 192kHz sample rate range supports both consumer and professional standards, making it versatile for applications from home theater to broadcast. The <2ms latency also outperforms competitors, ensuring lip-sync accuracy in video-audio systems??a must for live events and television production.

The 48-TQFP package provides better thermal efficiency than smaller, denser packages, ensuring stable operation in rack-mounted equipment with limited airflow. This reliability, combined with its high channel count, makes it a cost-effective solution for large-scale systems that would otherwise require multiple devices.

Typical Applications of SRC4392IPFBR

The SRC4392IPFBR excels in large-scale audio systems requiring precise synchronization across many channels. Key use cases include:

• Professional audio mixing consoles for live events and studios
• Broadcast audio routers and video production switchers
• Immersive home theater processors (7.1.4 and higher)
• Automotive premium sound systems with multiple zones
• Multi-track recording interfaces and digital audio workstations

Texas Instruments?? Expertise in Audio Synchronization

As a Texas Instruments product, the SRC4392IPFBR leverages the company??s decades of leadership in audio semiconductor design. Texas Instruments is trusted by leading manufacturers in professional audio and broadcast for producing ICs that solve complex timing challenges, with a focus on reliability and performance consistency. Each unit undergoes rigorous testing to ensure it meets strict quality standards, making it a staple in mission-critical systems where downtime is not an option.

常见问题（FAQ）

How does the SRC4392IPFBR handle synchronization of 12 independent audio sources?

Its integrated sample rate converters align each channel to a common clock, eliminating timing mismatches that cause phase issues or echo. This is essential in systems with diverse inputs like microphones, instruments, and preamps, ensuring all signals blend seamlessly.

Why is 122dB dynamic range important for multi-channel systems?

Dynamic range measures the ability to capture both quiet and loud sounds. 122dB ensures that subtle details (e.g., ambient room noise in a recording) and loud transients (e.g., a cymbal crash) are preserved across all 12 channels, maintaining consistent quality without distortion or channel imbalance.

Can the SRC4392IPFBR integrate with legacy audio equipment?

Yes, it supports industry-standard interfaces (I2S, TDM) and control via I2C, ensuring compatibility with both modern and legacy gear. This flexibility simplifies upgrades to existing systems, allowing gradual migration without replacing all components at once.

What benefits does 192kHz sample rate support offer in professional settings?

192kHz support enables high-resolution audio processing, capturing finer frequency details than lower rates. This is critical for mastering studios, where preserving every nuance of a performance ensures the final product meets professional standards, and for future-proofing systems for emerging high-res formats.

How does the 48-TQFP package improve system design?

The 48-TQFP package balances pin count and thermal performance, allowing efficient heat dissipation in enclosed equipment like rack-mounted mixers. Its size also simplifies PCB routing compared to larger packages, reducing design complexity while accommodating the 12-channel functionality.