Overview
The AD1955ARSZRL, produced by Analog Devices Inc., is a high-performance, single-chip stereo digital audio playback system. It integrates a multibit sigma-delta modulator, high-performance digital interpolation filters, and continuous-time differential current output DACs. This device is designed to support various audio formats, including DVD audio, SACD, and CD, with sample rates up to 192 kHz and 24-bit resolution. It features an on-chip clickless stereo attenuator and mute capability, controlled via an SPI-compatible serial control port. The AD1955ARSZRL is ideal for applications in high-end audio systems, home theaters, automotive audio, digital mixing consoles, and digital audio effect processors.
Key Specifications
| Parameter | Min | Typ | Max |
|---|---|---|---|
| Sample Rate | - | Up to 192 kHz | - |
| Resolution | - | 24 bits | - |
| SNR/DNR (A-Weighted Stereo) | - | 120 dB at 48 kHz | - |
| THD+N | - | -110 dB | - |
| Stopband Attenuation | - | 110 dB | - |
| Passband Ripple | - | ±0.0002 dB | - |
| Power Supply | - | 5 V | - |
| Package | - | 28-Lead SSOP | - |
Key Features
- Supports 24-bit, up to 192 kHz sample rate PCM audio data and SACD bit-stream.
- Multi-bit sigma-delta modulator with 'Perfect Differential Linearity Restoration' for reduced idle tones and noise floor.
- Continuous-time differential current output DACs with 8.64 mA p-p differential output current.
- Flexible serial data port with Right-Justified, Left-Justified, I2S-compatible, and DSP serial port.
- Data-directed scrambling DAC, least sensitive to jitter.
- On-chip clickless stereo attenuator and mute capability controlled via SPI-compatible serial control port.
Applications
- High-end DVD-audio, SACD, CD, and home theater systems.
- Automotive audio systems.
- Sampling musical keyboards.
- Digital mixing consoles and digital audio effects processors.
Q & A
- What is the AD1955ARSZRL used for? The AD1955ARSZRL is used as a high-performance stereo digital audio playback system in various audio applications, including DVD-audio, SACD, CD, home theaters, automotive audio, and more.
- What are the key specifications of the AD1955ARSZRL? Key specifications include support for up to 192 kHz sample rate, 24-bit resolution, 120 dB SNR/DNR at 48 kHz, and a 5 V power supply.
- What types of audio formats does the AD1955ARSZRL support? The AD1955ARSZRL supports DVD audio, SACD, CD, and other digital audio formats with sample rates up to 192 kHz and 24-bit resolution).
- How is the AD1955ARSZRL controlled? The device is controlled via an SPI-compatible serial control port, which allows for the configuration of various settings including attenuation and mute).
- What is the package type of the AD1955ARSZRL? The AD1955ARSZRL comes in a 28-Lead SSOP package).
- What are some of the unique features of the AD1955ARSZRL? Unique features include a multibit sigma-delta modulator, continuous-time differential current output DACs, and a flexible serial data port).
- Is the AD1955ARSZRL sensitive to jitter? No, the AD1955ARSZRL uses data-directed scrambling DAC, which makes it least sensitive to jitter).
- What are the typical applications of the AD1955ARSZRL? Typical applications include high-end audio systems, home theaters, automotive audio, digital mixing consoles, and digital audio effect processors).
- Does the AD1955ARSZRL support SACD bit-stream? Yes, the AD1955ARSZRL supports SACD bit-stream and external digital filter interface).
- What is the power supply requirement for the AD1955ARSZRL? The AD1955ARSZRL requires a 5 V power supply).
