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PCM2702E
Product Overview
Category: Audio Interface IC
Use: Digital-to-Analog Converter (DAC)
Characteristics: High-performance, USB-powered DAC
Package: SSOP-28
Essence: Converts digital audio signals to analog for high-quality audio output
Packaging/Quantity: Tape and Reel, 2500 units per reel
Specifications
- Resolution: Up to 16-bit
- Sampling Rate: Up to 48 kHz
- Interface: USB 1.1
- Output: Stereo Line Output
- Power Supply: USB Bus Powered
- Operating Temperature: -40°C to +85°C
Detailed Pin Configuration
The PCM2702E has a total of 28 pins. The pin configuration is as follows:
- VDD
- GND
- VOUTL
- VOUTR
- AGND
- AVCC
- DVCC
- DRC
- DRR
- BCK
- LRCK
- SDA
- SCL
- MUTE
- VBUS
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
Functional Features
- USB audio streaming capability
- On-chip USB interface with integrated transceiver
- Built-in digital interpolation filter
- Low-jitter clock recovery system
- Integrated headphone amplifier
- Supports both Windows and Mac operating systems
Advantages and Disadvantages
Advantages: - High-quality audio output - USB-powered, no external power supply required - Compact package size - Easy integration with USB-enabled devices
Disadvantages: - Limited resolution and sampling rate compared to higher-end DACs - Requires a USB connection for power and audio transmission
Working Principles
The PCM2702E is a digital-to-analog converter that operates by receiving digital audio signals from a USB interface. It utilizes an on-chip USB transceiver to stream audio data, which is then processed through a built-in digital interpolation filter. The low-jitter clock recovery system ensures accurate timing for precise audio reproduction. The converted analog audio signals are then amplified and output through the stereo line outputs.
Detailed Application Field Plans
The PCM2702E is commonly used in various audio applications, including:
- USB audio interfaces
- Portable media players
- Headphone amplifiers
- Home theater systems
- Car audio systems
Detailed and Complete Alternative Models
- PCM2704 - Similar features, but with improved resolution and sampling rate.
- PCM2706 - Adds microphone input capability to the PCM2702E's feature set.
- PCM2707 - Enhanced version with additional digital audio processing features.
These alternative models offer varying specifications and additional functionalities to suit different application requirements.
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Énumérez 10 questions et réponses courantes liées à l'application de PCM2702E dans les solutions techniques
Sure! Here are 10 common questions and answers related to the application of PCM2702E in technical solutions:
Q: What is PCM2702E? A: PCM2702E is a USB audio codec that provides high-quality stereo audio playback and recording capabilities.
Q: What are the key features of PCM2702E? A: PCM2702E features include USB connectivity, support for various audio formats, built-in DAC and ADC, and low power consumption.
Q: How can I connect PCM2702E to my computer? A: PCM2702E can be connected to a computer via a USB cable. It acts as a plug-and-play device, requiring no additional drivers.
Q: Can PCM2702E be used in both playback and recording applications? A: Yes, PCM2702E supports both audio playback and recording. It has a built-in digital-to-analog converter (DAC) for playback and an analog-to-digital converter (ADC) for recording.
Q: What audio formats does PCM2702E support? A: PCM2702E supports popular audio formats such as PCM, MP3, and WMA.
Q: Can PCM2702E be powered directly from the USB port? A: Yes, PCM2702E can be powered directly from the USB port, eliminating the need for an external power supply.
Q: Is PCM2702E compatible with different operating systems? A: Yes, PCM2702E is compatible with various operating systems, including Windows, macOS, and Linux.
Q: Can PCM2702E be used in portable audio devices? A: Yes, PCM2702E's low power consumption makes it suitable for use in portable audio devices such as headphones, speakers, and audio players.
Q: Does PCM2702E support headphone output? A: Yes, PCM2702E has a dedicated headphone output that can drive headphones directly.
Q: Are there any evaluation boards or development kits available for PCM2702E? A: Yes, Texas Instruments provides evaluation boards and development kits for PCM2702E, which can help in the prototyping and development process.
Please note that these answers are general and may vary depending on specific implementation requirements and configurations.