Overview
The AD1955ARSZ is a high-performance multibit sigma-delta digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is designed as a complete, single-chip, stereo digital audio playback system. It supports various audio formats, including SACD (Super Audio CD) and PCM (Pulse Code Modulation) audio data up to 24 bits and 192 kHz sample rates. The AD1955ARSZ is fully compatible with DVD audio formats and is backward compatible with CD formats, making it versatile for a wide range of audio applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 24 bits |
| Sampling Rate | Up to 192 kSPS |
| Package Type | 28-Pin SSOP |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Interface | Serial (SPI) |
| Output Polarity | Bipolar |
| Reference Voltage | Internal |
| Dimensions | 10.2 x 5.3 x 1.75 mm |
| Maximum Operating Temperature | 85°C |
| RoHS Compliance | Yes |
Key Features
- High-performance multibit sigma-delta modulator
- Supports 16-/18-/20-/24-bit data and up to 192 kHz sample rates
- Accepts SACD bit stream and external digital filter interface
- On-chip clickless stereo attenuator and mute capability
- Programmable through an SPI-compatible serial control port
- Backward compatibility with CD formats including 50 µs/15 µs digital de-emphasis
- Flexible serial data input port for interconnection with various ADCs, DSPs, and SACD decoders
Applications
The AD1955ARSZ is suitable for a variety of high-quality audio applications, including DVD players, SACD players, digital audio workstations, and professional audio equipment. Its compatibility with multiple audio formats and its high performance make it an ideal choice for systems requiring precise and high-fidelity audio playback.
Q & A
- What is the resolution and sampling rate of the AD1955ARSZ? The AD1955ARSZ has a resolution of 24 bits and supports sampling rates up to 192 kSPS.
- What type of package does the AD1955ARSZ come in? The AD1955ARSZ comes in a 28-Pin SSOP package.
- What is the supply voltage range for the AD1955ARSZ? The supply voltage range is 4.5 V to 5.5 V.
- Does the AD1955ARSZ support SACD playback? Yes, it supports SACD bit streams and external digital filter interfaces.
- How is the AD1955ARSZ controlled? It is programmable through an SPI-compatible serial control port.
- Is the AD1955ARSZ backward compatible with CD formats? Yes, it supports 50 µs/15 µs digital de-emphasis for CD formats.
- What are the dimensions of the AD1955ARSZ? The dimensions are 10.2 x 5.3 x 1.75 mm.
- What is the maximum operating temperature of the AD1955ARSZ? The maximum operating temperature is 85°C.
- Is the AD1955ARSZ RoHS compliant? Yes, it is RoHS compliant.
- What types of applications is the AD1955ARSZ suitable for? It is suitable for high-quality audio applications such as DVD players, SACD players, digital audio workstations, and professional audio equipment.
