Overview
The PCM1803ADBRG4 from Texas Instruments is a high-performance, single-chip stereo analog-to-digital converter (ADC) designed for cost-sensitive consumer applications. It features single-ended analog voltage inputs and uses a delta-sigma modulator with 64- and 128-times oversampling. The device includes a digital decimation filter and a high-pass filter to remove the DC component of the input signal. It operates with dual power supplies, requiring a 5-V analog supply and a 3.3-V digital supply, making it suitable for a variety of audio systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 24 Bits | |
| Sampling Rate | 16 kHz to 96 kHz | |
| Analog Supply Voltage (VCC) | 4.75 to 5.25 | V |
| Digital Supply Voltage (VDD) | 3 to 3.6 | V |
| Analog Input Voltage (Full-Scale) | 3 Vp-p | |
| System Clock Frequency | 8.192 to 49.152 MHz | |
| Digital Output Load Capacitance | 20 pF | |
| Operating Temperature Range | -10 to 70 °C | |
| Package Type | 20-pin SSOP | |
| Dynamic Range | 103 dB (Typical) | |
| SNR | 103 dB (Typical) | |
| THD+N | -95 dB (Typical) |
Key Features
- High-performance, low-cost, single-chip stereo analog-to-digital converter with single-ended analog voltage input.
- Delta-sigma modulator with 64- and 128-times oversampling.
- Digital decimation filter and high-pass filter to remove the DC component of the input signal.
- Supports master and slave modes.
- Four data formats in serial interface: 24-bit left-justified, 24-bit I2S, and 20-, 24-bit right-justified.
- Dual power supplies: 5-V analog and 3.3-V digital.
- Internal power-on-reset circuit for automatic initialization.
- Hardware control pins for full configuration.
Applications
- AV Amplifier Receiver
- MD Player
- CD Recorder
- Electric Musical Instruments
- Multitrack Receiver
- Digital Audio Systems
Q & A
- What is the resolution of the PCM1803ADBRG4?
The resolution of the PCM1803ADBRG4 is 24 bits.
- What are the supported sampling rates for the PCM1803ADBRG4?
The PCM1803ADBRG4 supports sampling rates from 16 kHz to 96 kHz.
- What are the power supply requirements for the PCM1803ADBRG4?
The device requires a 5-V analog supply and a 3.3-V digital supply.
- What types of data formats does the PCM1803ADBRG4 support?
The PCM1803ADBRG4 supports 24-bit left-justified, 24-bit I2S, and 20-, 24-bit right-justified data formats.
- What is the typical dynamic range of the PCM1803ADBRG4?
The typical dynamic range is 103 dB.
- What is the typical SNR of the PCM1803ADBRG4?
The typical SNR is 103 dB.
- What is the typical THD+N of the PCM1803ADBRG4?
The typical THD+N is -95 dB.
- Does the PCM1803ADBRG4 have an internal power-on-reset circuit?
Yes, the PCM1803ADBRG4 has an internal power-on-reset circuit for automatic initialization.
- What is the package type of the PCM1803ADBRG4?
The PCM1803ADBRG4 is available in a 20-pin SSOP package.
- What are some common applications of the PCM1803ADBRG4?
Common applications include AV Amplifier Receiver, MD Player, CD Recorder, Electric Musical Instruments, and Multitrack Receiver.
