PCM1850APJT

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Analog-to-Digital Converter (ADC)
• Characteristics: High-resolution, low-power consumption
• Package: TQFP (Thin Quad Flat Pack)
• Essence: Converts analog signals to digital format
• Packaging/Quantity: Tape and Reel, 250 units per reel

Specifications

• Resolution: 24-bit
• Sampling Rate: Up to 192 kHz
• Input Voltage Range: ±2.5 V
• Power Supply: 3.3 V
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VCC: Power supply input
2. GND: Ground
3. REFOUT: Reference voltage output
4. AVDD: Analog power supply
5. AGND: Analog ground
6. VINL+/VINL-: Differential analog input
7. VINR+/VINR-: Differential analog input
8. CLK: Clock input
9. SDATA: Serial data output
10. LRCK: Left/right channel select
11. BCLK: Bit clock input
12. MCLK: Master clock input

Functional Features

• High-resolution audio conversion
• Low power consumption
• Supports various sampling rates
• Differential analog inputs for improved noise rejection
• Serial data output for easy integration with digital systems
• Left/right channel select for stereo audio applications

Advantages

• High resolution provides accurate and detailed audio conversion
• Low power consumption extends battery life in portable devices
• Wide range of supported sampling rates allows flexibility in audio applications
• Differential analog inputs minimize interference and improve signal quality
• Serial data output simplifies integration with digital systems
• Left/right channel select enables stereo audio processing

Disadvantages

• Higher cost compared to lower-resolution ADCs
• Requires external clock and master clock for operation
• Limited input voltage range may not be suitable for certain applications

Working Principles

The PCM1850APJT is an analog-to-digital converter that converts continuous analog signals into discrete digital values. It utilizes a high-resolution architecture to accurately capture the amplitude of the input signal. The differential analog inputs help reject common-mode noise, ensuring a clean and accurate conversion. The ADC operates based on the provided clock and master clock signals, sampling the analog input at regular intervals and converting it into a digital format.

Detailed Application Field Plans

1. Professional Audio Recording: The PCM1850APJT can be used in professional audio recording equipment to convert analog audio signals into digital format with high resolution and low noise.
2. Consumer Audio Devices: It can be integrated into consumer audio devices such as portable music players, soundbars, and home theater systems to provide high-quality audio conversion.
3. Medical Instrumentation: The ADC's high resolution and low power consumption make it suitable for medical instrumentation applications where accurate and reliable data acquisition is required.
4. Industrial Automation: The PCM1850APJT can be utilized in industrial automation systems for analog signal processing and control applications.

Detailed and Complete Alternative Models

1. PCM1808: 24-bit, 96 kHz stereo ADC with similar features and performance.
2. ADS124S08: 24-bit, 4-channel ADC with programmable gain amplifiers and low noise performance.
3. MAX11131: 24-bit, 16-channel ADC with integrated multiplexer and low-power operation.

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