Overview
The SRC4192, produced by Texas Instruments, is an asynchronous sample-rate converter designed for professional and broadcast audio applications. This device is part of the SRC419x series, which includes the SRC4192 and SRC4193 models. The SRC4192 is a standalone, pin-programmed device that offers a wide range of features to support various audio interfaces and formats. It is known for its high dynamic range, ultra-low distortion, and flexible audio serial ports, making it suitable for connecting to a variety of audio data converters, digital audio receivers, and transmitters.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input-to-Output Sampling Range | 16:1 to 1:16 | |
| Maximum Input and Output Sampling Rates | Up to 212 kHz | |
| Dynamic Range | 144 dB (–60-dbFS Input, BW = 20 Hz to fS/2, A-Weighted) | dB |
| Total Harmonic Distortion + Noise (THD+N) | –140 dB (0-dbFS Input, BW = 20 Hz to fS/2) | dB |
| Power Supply Voltage (VDD) | 3.3 V | V |
| Digital I/O Supply Voltage (VIO) | 1.65 V to 3.6 V | V |
| Operating Temperature | –45°C to 85°C | °C |
| Package Type | 28-Pin SSOP |
Key Features
- Automatic sensing of the input-to-output sampling ratio
- Supports I2S, Left-Justified, Right-Justified, and TDM data formats
- Flexible audio serial ports with master or slave-mode operation
- High-performance, linear-phase digital filtering with stop band attenuation greater than 140 dB
- Attenuates sampling and reference clock jitter
- Programmable digital output attenuation (SRC4193 only)
- Soft mute function and bypass mode
- Power down mode and low group delay option for interpolation filter
- Direct downsampling option for decimation filter (SRC4193 only)
- SPI port provides access to internal control registers (SRC4193 only)
Applications
- Digital Mixing Consoles
- Digital Audio Workstations
- Audio Distribution Systems
- Broadcast Studio Equipment
- High-End A/V Receivers
- General Digital Audio Processing
Q & A
- What is the primary function of the SRC4192 device?
The SRC4192 is an asynchronous sample-rate converter designed for professional and broadcast audio applications.
- What is the range of input-to-output sampling ratios supported by the SRC4192?
The device supports a wide input-to-output sampling range of 16:1 to 1:16.
- What are the maximum input and output sampling rates for the SRC4192?
The device supports input and output sampling rates up to 212 kHz.
- What is the dynamic range of the SRC4192?
The dynamic range is 144 dB (–60-dbFS Input, BW = 20 Hz to fS/2, A-Weighted).
- What types of audio data formats does the SRC4192 support?
The device supports I2S, Left-Justified, Right-Justified, and TDM data formats.
- Does the SRC4192 have a power down mode?
- What is the package type of the SRC4192?
The device is available in a 28-pin SSOP package.
- Can the SRC4192 operate with different digital I/O supply voltages?
- What are some common applications of the SRC4192?
- Does the SRC4192 have a SPI port for programming?
The SRC4193 model has a SPI port for accessing internal control registers, but the SRC4192 does not.
