Overview
The TAS5548DCAR is an 8-channel Digital Pulse Width Modulator (PWM) with integrated Digital Audio Processing and Sample Rate Converter, designed by Texas Instruments. This component is tailored to provide advanced performance and high system integration, particularly for high-definition (HD) audio applications such as Blu-ray home-theater-in-a-box systems, A/V receivers, mini/micro combos, and soundbars. It supports DTS-HD specifications and offers a robust solution for multi-channel audio processing.
Key Specifications
| Specification | Details |
|---|---|
| Package | HTSSOP (DCA) - 56 pins |
| Operating Temperature Range | -40°C to 85°C |
| Sample Rate Conversion | 8-channel Asynchronous Sample Rate Converter (ASRC) |
| Audio Processing | Supports 32-192 kHz, 4-channel native at 192 kHz |
| Audio Bandwidth | 30 kHz for DTS-HD compatibility |
| PWM Output | Eight differential PWM outputs, supports AD, BD, and ternary modulation |
| Power Supply | Power-supply-volume-control (PSVC), supports Class G power supply |
| Audio Inputs/Outputs | Up to five synchronous serial audio inputs, one synchronous serial audio output |
| Dynamic Range | >105 dB dynamic range, THD+N < 0.1% (0–40 kHz) |
Key Features
- Advanced Audio Processing: Supports 7-band parametric equalization, bass and treble tone control, volume and loudness control, and dynamic range compression.
- Sample Rate Conversion: Two integrated 4-channel ASRC cores allow for seamless mixing of two different sample rate sources without changing coefficients.
- Flexible Audio Inputs: Up to five synchronous serial audio inputs and one synchronous serial audio output, with I2S master mode and slave mode support.
- PWM Output: Eight differential PWM outputs supporting AD, BD, and ternary modulation, with single-ended (S.E.) or bridge-tied load (BTL) configurations.
- Power Management: Energy manager for overall system power control, power-supply-volume-control (PSVC) for high-performance applications.
- Headphone Support: Differential PWM headphone outputs and support for external differential-input analog headphone amplifiers).
Applications
- Blu-ray Home-Theater-in-a-Box Systems: Supports DTS-HD and Dolby True HD specifications for high-definition audio).
- A/V Receivers: Enhances multi-channel audio performance with advanced audio processing capabilities).
- Mini/Micro Combos and Soundbars: Provides design flexibility and cost savings by integrating multiple audio functions on a single chip).
- Professional Audio Equipment: Suitable for applications requiring high-quality, multi-channel audio processing and flexible sample rate conversion).
Q & A
- What is the TAS5548DCAR?
The TAS5548DCAR is an 8-channel Digital Pulse Width Modulator (PWM) with integrated Digital Audio Processing and Sample Rate Converter, designed by Texas Instruments).
- What are the key features of the TAS5548DCAR?
Key features include advanced audio processing, sample rate conversion, flexible audio inputs, PWM output, and power management capabilities).
- What are the supported sample rates for the TAS5548DCAR?
The TAS5548DCAR supports sample rates from 8 kHz to 192 kHz and can convert them to a fixed rate of 96 kHz or 192 kHz).
- What is the audio bandwidth of the TAS5548DCAR?
The audio bandwidth is 30 kHz, compatible with DTS-HD and Dolby True HD specifications).
- Does the TAS5548DCAR support headphone outputs?
Yes, it supports differential PWM headphone outputs and can drive external differential-input analog headphone amplifiers).
- What is the operating temperature range of the TAS5548DCAR?
The operating temperature range is -40°C to 85°C).
- What are the typical applications of the TAS5548DCAR?
Typical applications include Blu-ray home-theater-in-a-box systems, A/V receivers, mini/micro combos, soundbars, and professional audio equipment).
- Does the TAS5548DCAR support power-supply-volume-control (PSVC)?
Yes, it supports PSVC for high-performance applications and can be used as part of a Class G power supply).
- How many synchronous serial audio inputs does the TAS5548DCAR support?
It supports up to five synchronous serial audio inputs).
- What is the dynamic range of the TAS5548DCAR?
The dynamic range is >105 dB, with THD+N < 0.1% (0–40 kHz)).
