PCM1851PJTG4

Product Overview

Category: Integrated Circuit (IC)

Use: The PCM1851PJTG4 is a high-performance audio analog-to-digital converter (ADC) designed for professional audio applications. It provides accurate and reliable conversion of analog audio signals into digital format.

Characteristics: - High-resolution audio conversion - Low distortion and noise levels - Wide dynamic range - Sampling rates up to 192 kHz - Support for multiple audio formats - Flexible power supply options

Package: The PCM1851PJTG4 is available in a small outline package (SOP) with 20 pins, making it suitable for space-constrained applications.

Essence: The essence of the PCM1851PJTG4 lies in its ability to convert analog audio signals into digital format with exceptional accuracy and fidelity.

Packaging/Quantity: The PCM1851PJTG4 is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Resolution: Up to 24 bits
• Sampling Rates: 8 kHz to 192 kHz
• Total Harmonic Distortion + Noise (THD+N): <0.001%
• Signal-to-Noise Ratio (SNR): >110 dB
• Dynamic Range (DR): >110 dB
• Power Supply Voltage: 3.3 V or 5 V
• Power Consumption: <100 mW

Pin Configuration

The PCM1851PJTG4 features the following pin configuration:

1. VCC - Power supply voltage
2. GND - Ground
3. SDATA - Serial data output
4. SCLK - Serial clock input
5. LRCK - Left/right channel select
6. BCLK - Bit clock input
7. MUTE - Mute control input
8. REF - Reference voltage input
9. AGND - Analog ground
10. AINL+ - Positive left channel analog input
11. AINL- - Negative left channel analog input
12. AINR+ - Positive right channel analog input
13. AINR- - Negative right channel analog input
14. DVDD - Digital power supply voltage
15. DOUT - Digital audio output
16. FS - Frame sync input
17. RESET - Reset control input
18. VCOM - Common-mode voltage output
19. AVDD - Analog power supply voltage
20. VREF - Reference voltage output

Functional Features

• High-resolution audio conversion: The PCM1851PJTG4 supports up to 24-bit resolution, ensuring accurate representation of audio signals.
• Low distortion and noise levels: With a THD+N of less than 0.001%, the PCM1851PJTG4 delivers high-fidelity audio conversion.
• Wide dynamic range: The ADC offers a dynamic range exceeding 110 dB, capturing both subtle details and loud sounds with clarity.
• Multiple sampling rates: It supports sampling rates ranging from 8 kHz to 192 kHz, accommodating various audio applications.
• Flexible power supply options: The PCM1851PJTG4 can operate on either a 3.3 V or 5 V power supply, providing versatility in system design.

Advantages and Disadvantages

Advantages: - High-resolution audio conversion for accurate sound reproduction - Low distortion and noise levels ensure high-fidelity audio capture - Wide dynamic range captures a broad range of audio signals - Support for multiple sampling rates allows flexibility in application design - Versatile power supply options accommodate different system requirements

Disadvantages: - Limited pin count may restrict the number of input/output channels in complex audio systems - Requires external components for proper operation, increasing system complexity

Working Principles

The PCM1851PJTG4 operates on the principle of delta-sigma modulation. It converts analog audio signals into a digital bitstream by oversampling the input signal and applying noise shaping techniques to improve the signal-to-noise ratio. The digital output is then processed further for storage, transmission, or other audio processing purposes.

Detailed Application Field Plans

The PCM1851PJTG4 finds applications in various professional audio fields, including: - Studio recording equipment - Audio mixing consoles - Digital audio workstations (DAWs) - Broadcast and production equipment - Musical instruments and effects processors - Professional audio interfaces

Alternative Models

For those seeking alternative options, the following models are worth considering: - PCM1808: Similar performance with a lower pin count - PCM1861: Higher resolution and additional features - PCM1792A: Enhanced dynamic range and advanced digital filters

These alternatives provide different trade-offs in terms of features, pin count, and performance, allowing designers to choose the most