PCM1851APJTG4

Product Overview

Category

PCM1851APJTG4 belongs to the category of audio analog-to-digital converters (ADCs).

Use

This product is primarily used for converting analog audio signals into digital format, enabling their processing and storage in digital systems.

Characteristics

• High-resolution: PCM1851APJTG4 offers a high resolution of up to 24 bits, ensuring accurate representation of audio signals.
• Low distortion: The device exhibits low distortion levels, preserving the integrity of the audio signal during conversion.
• Wide dynamic range: With a wide dynamic range, PCM1851APJTG4 can capture both soft and loud audio signals accurately.
• Low power consumption: The ADC operates with low power consumption, making it suitable for portable and battery-powered devices.

Package

PCM1851APJTG4 is available in a small-sized package, typically a 20-pin TSSOP (Thin Shrink Small Outline Package).

Essence

The essence of PCM1851APJTG4 lies in its ability to convert analog audio signals into digital format while maintaining high fidelity and accuracy.

Packaging/Quantity

This product is commonly sold in reels containing a specific quantity of units, typically 250 or 300 pieces per reel.

Specifications

• Resolution: Up to 24 bits
• Sampling Rate: Up to 192 kHz
• Signal-to-Noise Ratio (SNR): >100 dB
• Total Harmonic Distortion (THD): <0.001%
• Power Supply Voltage: 3.3 V
• Power Consumption: <10 mW

Detailed Pin Configuration

1. VCC: Power supply voltage input
2. GND: Ground reference
3. BCLK: Bit clock input
4. LRCLK: Left/right clock input
5. SDATA: Serial data output
6. MCLK: Master clock input
7. AGND: Analog ground reference
8. VINL: Left channel analog input
9. VINR: Right channel analog input
10. VREF: Reference voltage input
11. DVDD: Digital power supply voltage input
12. DOUT: Digital output
13. FS: Frame sync input
14. SCL: Serial control interface clock
15. SDA: Serial control interface data
16. NC: No connection
17. NC: No connection
18. NC: No connection
19. NC: No connection
20. NC: No connection

Functional Features

• High-resolution audio conversion
• Low distortion and noise levels
• Flexible clocking options
• Serial control interface for configuration
• Power-down mode for reduced power consumption

Advantages and Disadvantages

Advantages

• High-resolution conversion ensures accurate representation of audio signals.
• Low distortion and noise levels preserve audio quality.
• Flexible clocking options allow integration into various systems.
• Serial control interface simplifies configuration.
• Power-down mode reduces power consumption when not in use.

Disadvantages

• Limited pin compatibility with other devices may require additional circuitry for certain applications.
• Higher cost compared to lower-end ADCs with lower specifications.

Working Principles

PCM1851APJTG4 operates by sampling the analog audio input at a high frequency, quantizing the samples into digital values, and encoding them using a specific resolution. The device utilizes an internal clock or an external master clock to synchronize the sampling process. The digital output is then available for further processing or storage.

Detailed Application Field Plans

PCM1851APJTG4 finds application in various fields, including: 1. Professional audio recording equipment 2. Consumer audio devices (e.g., soundbars, home theater systems) 3. Automotive audio systems 4. Musical instruments and audio synthesizers 5. Industrial audio processing equipment

Detailed and Complete Alternative Models

1. PCM1850APJTG4: Similar to PCM1851APJTG4 but with a lower resolution of 20 bits.
2. PCM1860APJTG4: Higher-end model with improved specifications, including a higher SNR and lower THD.
3. PCM1808PDBT: Lower-cost alternative with a reduced resolution of 16 bits.

These alternative models offer different trade-offs in terms of cost, resolution, and performance, allowing users to choose the most suitable option for their specific requirements.

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