Overview
The PCM4202DBR, produced by Texas Instruments, is a high-performance, stereo audio analog-to-digital (A/D) converter. It is designed for professional and broadcast audio applications, offering exceptional dynamic performance and flexibility. The PCM4202 utilizes a 1-bit delta-sigma modulator per channel, incorporating a novel density modulated dither scheme to enhance dynamic range and signal-to-noise ratio. This converter supports both 24-bit linear PCM and 1-bit Direct Stream Digital (DSD) output formats, making it suitable for a wide range of digital audio recording and processing applications.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 24 Bits | |
| Sampling Frequency (Single Rate) | 8 kHz to 54 kHz | |
| Sampling Frequency (Dual Rate) | 54 kHz to 108 kHz | |
| Sampling Frequency (Quad Rate) | 108 kHz to 216 kHz | |
| Dynamic Range (PCM Output, A-Weighted) | 118 dB | |
| THD+N (PCM Output, VIN = −0.5dB, fIN = 1kHz) | −105 dB | |
| Analog Power Supply | +5V | V |
| Digital Power Supply | +3.3V | V |
| Power Dissipation (fS = 48kHz, Single Rate) | 308 mW (typical) | mW |
| Package Type | SSOP-28 |
Key Features
- Two high-performance delta-sigma analog-to-digital converters.
- Supports 24-bit linear PCM output data and 1-bit Direct Stream Digital (DSD) output data.
- Sampling rates up to 216 kHz for PCM output and 64x or 128x oversampled DSD output.
- Flexible audio serial port interface supporting Left-Justified, Right-Justified, and I2S data formats.
- Linear-phase digital decimation filter and digital high-pass filter for DC removal.
- Clipping flag output for each channel.
- Power-down mode for reduced power consumption.
- Pin- and function-compatible with the PCM1804.
Applications
- Digital Recorders and Mixing Desks.
- Digital Audio Effects Processors.
- Broadcast Studio Equipment.
- Surround-Sound Encoders.
- High-End A/V Receivers.
Q & A
- What is the resolution of the PCM4202DBR?
The PCM4202DBR has a resolution of 24 bits.
- What are the supported sampling frequencies for the PCM4202DBR?
The PCM4202DBR supports sampling frequencies up to 216 kHz in Quad Rate mode, with Single Rate and Dual Rate modes supporting lower frequencies.
- What types of output data formats does the PCM4202DBR support?
The PCM4202DBR supports both 24-bit linear PCM and 1-bit Direct Stream Digital (DSD) output formats.
- What is the power supply requirement for the PCM4202DBR?
The PCM4202DBR requires a +5V analog power supply and a +3.3V digital power supply.
- What is the typical power dissipation of the PCM4202DBR at 48 kHz sampling frequency?
The typical power dissipation at 48 kHz sampling frequency is 308 mW.
- What package type is the PCM4202DBR available in?
The PCM4202DBR is available in a SSOP-28 package.
- Does the PCM4202DBR have a power-down mode?
- What types of audio data formats are supported by the audio serial port interface?
The audio serial port interface supports Left-Justified, Right-Justified, and I2S data formats.
- What are some of the key applications for the PCM4202DBR?
The PCM4202DBR is used in digital recorders, mixing desks, broadcast studio equipment, surround-sound encoders, and high-end A/V receivers.
- Is the PCM4202DBR compatible with other Texas Instruments products?
The PCM4202DBR is pin- and function-compatible with the PCM1804.
