PCM1742E
High-quality stereo audio digital-to-analog converters for precision sound
Manufacturer： ['rochester', 'analog-devices', 'ti']
series introduction
# PCM1742E Product Series Introduction
## 1. Overview
The PCM1742E product series is a remarkable line of high - performance audio digital - to - analog converters (DACs) developed by Texas Instruments. These DACs are designed to meet the demanding requirements of high - end audio applications, offering exceptional audio quality, flexibility, and reliability. With their advanced features and precise engineering, the PCM1742E series has become a popular choice among audio enthusiasts, professional audio equipment manufacturers, and designers.
## 2. Key Features
### 2.1 High - Resolution Audio Conversion
- The PCM1742E series supports high - resolution audio formats, including up to 24 - bit resolution at sampling rates of up to 192 kHz. This high - resolution capability allows for the reproduction of audio with incredible detail, capturing the subtlest nuances of music, such as the delicate plucking of a guitar string or the softest vocal inflection.
- It can accurately convert digital audio signals into analog signals, minimizing quantization noise and distortion, resulting in a clean and natural - sounding audio output.
### 2.2 Low Distortion and Noise
- These DACs are engineered to have extremely low total harmonic distortion plus noise (THD+N). The low THD+N ensures that the audio output is free from unwanted artifacts and coloration, providing a pure and faithful representation of the original audio source.
- The low noise floor of the PCM1742E series allows for a wide dynamic range, enabling the reproduction of both the softest and the loudest parts of the audio with equal clarity.
### 2.3 Flexible Input Interface
- The PCM1742E series offers a flexible input interface that can accept a variety of digital audio formats, including I²S, left - justified, and right - justified formats. This flexibility makes it easy to integrate the DACs into different audio systems, whether they are based on microcontrollers, digital signal processors (DSPs), or other audio - processing devices.
- It also supports a wide range of input data rates, allowing for seamless compatibility with different audio sources and systems.
### 2.4 On - Chip Digital Filters
- The DACs in the PCM1742E series are equipped with on - chip digital filters. These filters can be configured to optimize the audio performance according to different application requirements.
- The digital filters help to remove out - of - band noise and aliasing, ensuring a smooth and accurate audio output. They also provide options for different filter characteristics, such as sharp - roll - off or slow - roll - off filters, allowing designers to fine - tune the audio response.
### 2.5 Power Management
- The PCM1742E series features efficient power management capabilities. It has a low - power standby mode that can significantly reduce power consumption when the device is not in use.
- The power - supply rejection ratio (PSRR) is high, which means that the DACs are less susceptible to power - supply noise, resulting in a more stable and clean audio output.
## 3. Applications
### 3.1 High - End Audio Systems
- In high - end home audio systems, such as audiophile - grade CD players, digital audio players, and integrated amplifiers, the PCM1742E series can provide the high - quality audio conversion needed to reproduce music with the utmost fidelity.
- It can also be used in high - end headphones amplifiers to deliver a rich and immersive audio experience for headphone users.
### 3.2 Professional Audio Equipment
- In professional audio recording studios, the PCM1742E series is suitable for use in digital audio workstations (DAWs), audio interfaces, and
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