PCM1851APJTRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Analog-to-Digital Converter (ADC)
• Characteristics: High-performance, low-power, stereo audio ADC
• Package: 20-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Converts analog audio signals into digital format
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Resolution: 24-bit
• Sampling Rate: Up to 192 kHz
• Signal-to-Noise Ratio (SNR): 105 dB
• Total Harmonic Distortion + Noise (THD+N): -94 dB
• Power Supply Voltage: 3.3 V
• Power Consumption: 5 mW (typical)

Pin Configuration

The PCM1851APJTRG4 has a total of 20 pins. The pin configuration is as follows:

1. VCC: Power supply voltage
2. GND: Ground
3. SDIN: Serial data input
4. SCLK: Serial clock input
5. BCLK: Bit clock input
6. LRCLK: Left/right clock input
7. MUTE: Mute control input
8. DEEMPH: De-emphasis control input
9. OSF: Oversampling filter selection input
10. RESET: Reset control input
11. SDOUT: Serial data output
12. AGND: Analog ground
13. AINL: Left channel analog input
14. AINR: Right channel analog input
15. AVDD: Analog power supply voltage
16. DVDD: Digital power supply voltage
17. DVDD: Digital power supply voltage
18. DGND: Digital ground
19. NC: No connection
20. NC: No connection

Functional Features

• High-resolution audio conversion
• Low power consumption
• Supports stereo audio input
• Built-in oversampling filter
• Mute and de-emphasis control
• Reset function for initialization

Advantages and Disadvantages

Advantages: - High-resolution audio conversion ensures accurate reproduction of audio signals. - Low power consumption makes it suitable for portable devices. - Supports stereo audio input, allowing for the conversion of two-channel audio signals. - Built-in oversampling filter improves the audio quality by reducing noise and distortion. - Mute and de-emphasis control provide additional flexibility in audio processing. - Reset function allows for easy initialization and configuration.

Disadvantages: - Limited to 24-bit resolution, which may not be sufficient for certain high-end audio applications. - Requires external components for proper operation, such as clock signals and power supplies.

Working Principles

The PCM1851APJTRG4 is an analog-to-digital converter that operates by sampling and quantizing analog audio signals. It uses a high-resolution sigma-delta modulation technique to convert the continuous analog waveform into a discrete digital representation. The oversampling filter helps remove unwanted noise and distortion from the input signal. The converted digital data can then be further processed or transmitted digitally.

Detailed Application Field Plans

The PCM1851APJTRG4 is commonly used in various audio-related applications, including:

1. Professional audio recording equipment
2. Consumer audio devices (e.g., soundbars, home theater systems)
3. Automotive audio systems
4. Musical instruments
5. Audio mixers and processors
6. Digital audio workstations

Detailed and Complete Alternative Models

1. PCM1808: 24-bit stereo ADC with lower power consumption
2. PCM1861: 24-bit stereo ADC with integrated digital audio interface
3. PCM1798: 24-bit stereo DAC with similar performance characteristics

These alternative models offer similar functionality and performance to the PCM1851APJTRG4 and can be considered as alternatives depending on specific requirements and design constraints.

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