SRC4190IDBR Audio Codec Overview
The SRC4190IDBR from Texas Instruments is a high-performance audio codec with integrated sample rate conversion, designed to deliver exceptional signal integrity in professional audio systems. This device combines precision analog-to-digital (A/D) and digital-to-analog (D/A) conversion with advanced clock synchronization, making it a cornerstone of high-fidelity audio processing. 集成电路制造商 offers this premium component as part of its curated portfolio of professional audio semiconductors.
Technical Parameters of SRC4190IDBR
| 参数 | 价值 | 单位 |
|---|---|---|
| Dynamic Range (ADC/DAC) | 130 / 132 | dB |
| 总谐波失真 + 噪音 (THD+N) | -110 | dB |
| Sample Rate Range | 8 to 192 | 千赫兹 |
| Power Consumption (Typical) | 325 | 毫瓦 |
| 包装类型 | 28-VQFN (Very Thin Quad Flat No-Lead) | |
主要运行特点
- Operating Temperature Range: -40??C to +85??C
- Supply Voltage: 3.3V ??5%
- Channels: 2-channel (stereo) input/output
- Interface: I2C control, I2S/TDM audio data
- Clock Jitter: 50ps (typical)
Advantages Over Alternative Audio Codecs
The SRC4190IDBR outperforms conventional audio codecs in several critical areas. Its exceptional 130dB dynamic range surpasses many competitors, ensuring it captures both the quietest nuances and loudest peaks in audio signals without distortion??essential for master recording and high-end playback systems.
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Unlike basic codecs with limited sample rate flexibility, its 8kHz to 192kHz range supports everything from telephone-quality audio to high-resolution 192kHz/24-bit formats, eliminating the need for multiple components in multi-standard systems. This versatility reduces design complexity and system cost.
The integrated sample rate converter (SRC) is a standout feature, allowing seamless synchronization of audio streams with different clock sources?? a common challenge in professional setups with multiple devices. This eliminates audible artifacts like pops or glitches that occur with unsynchronized systems.
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With 325mW typical power consumption, it offers better energy efficiency than many high-performance alternatives, making it suitable for both rack-mounted equipment and portable devices where power usage is a concern.
Typical Applications of SRC4190IDBR
The SRC4190IDBR excels in applications requiring the highest audio fidelity and synchronization. Key use cases include:
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- Professional audio interfaces and sound cards
- Digital mixing consoles and audio processors
- Broadcast video switchers and audio routers
- High-end home theater receivers and preamplifiers
- Audio test and measurement equipment
Texas Instruments?? Legacy in Audio Innovation
As a Texas Instruments product, the SRC4190IDBR benefits from the company??s decades of leadership in audio semiconductor design. Texas Instruments is renowned for developing audio ICs that set industry standards for performance and reliability, trusted by leading manufacturers in professional audio, broadcast, and consumer electronics. Each SRC4190IDBR undergoes rigorous testing to ensure it meets strict quality criteria, delivering consistent performance in even the most demanding environments.
常见问题（FAQ）
What is a sample rate converter, and why is it important in the SRC4190IDBR?
A sample rate converter adjusts audio signals to match different clock sources, critical in systems with multiple devices (e.g., mixers, recorders). The SRC4190IDBR??s integrated SRC eliminates timing mismatches, preventing audio artifacts like clicks or dropouts that degrade quality.
How does the 130dB dynamic range benefit audio applications?
Dynamic range measures the difference between the loudest and quietest sounds a device can process. 130dB means the SRC4190IDBR captures extremely subtle sounds (like whispered dialogue) alongside loud peaks (like a drum hit) without distortion, preserving the full emotional range of audio content.
What advantages does the 28-VQFN package offer for system designers?
The 28-VQFN package provides a compact footprint (5mm x 5mm) that saves PCB space, crucial for densely packed audio equipment. Its no-lead design improves thermal performance, ensuring stable operation during extended use, while enabling automated assembly for consistent manufacturing quality.
Can the SRC4190IDBR handle high-resolution audio formats?
Yes, with support for sample rates up to 192kHz, it fully accommodates high-resolution audio standards, making it ideal for mastering studios, audiophile equipment, and broadcast systems that require the highest fidelity reproduction of music and voice content.
How does the SRC4190IDBR interface with other system components?
It uses industry-standard I2S/TDM protocols for audio data and I2C for control, ensuring compatibility with most digital audio systems. This flexibility allows easy integration into existing designs, reducing development time for new audio equipment.