Overview
The AD1933YSTZ-RL, produced by Analog Devices Inc., is a high-performance, single-chip digital-to-analog converter (DAC) that provides eight DAC channels with differential outputs. This component utilizes Analog Devices' patented multibit sigma-delta (Σ-Δ) architecture, ensuring high-quality audio conversion. The AD1933 operates from 3.3 V digital and analog supplies and is available in a 64-lead LQFP package. It features an SPI port for microcontroller control, allowing adjustments to volume and other parameters. The design emphasizes low EMI, achieved through the use of an on-board PLL and continuous time architectures.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Digital Supply Voltage (DVDD) | 3.0 | 3.3 | 3.6 | V |
| Analog Supply Voltage (AVDD) | 3.0 | 3.3 | 3.6 | V |
| Digital Current (Normal Operation, fS = 192 kHz) | 95 | mA | ||
| Analog Current (Normal Operation) | 74 | mA | ||
| Power Dissipation (Normal Operation, fS = 192 kHz) | 429 | mW | ||
| Resolution | 24 | Bits | ||
| Sampling Frequency | 192 | kHz | ||
| Package Type | 64-Lead LQFP |
Key Features
- Eight digital-to-analog converters (DACs) with differential outputs using Analog Devices' patented multibit sigma-delta (Σ-Δ) architecture.
- SPI port for microcontroller control to adjust volume and other parameters.
- Log volume control with autoramp function and software-controllable clickless mute.
- Support for right-justified, left-justified, I2S, and TDM modes.
- Master and slave modes up to 16-channel input/output.
- On-board PLL to derive the master clock from the LR clock or an external crystal, reducing the need for a separate high-frequency master clock.
- Low EMI design using continuous time architectures and 3.3 V supplies.
- Each channel has its own independently programmable attenuator, adjustable in 255 steps in increments of 0.375 dB.
Applications
- Automotive audio systems.
- Home Theater Systems.
- Set-top boxes.
- Digital audio effects processors.
Q & A
- What is the AD1933YSTZ-RL?
The AD1933YSTZ-RL is a high-performance, single-chip digital-to-analog converter (DAC) produced by Analog Devices Inc.
- How many DAC channels does the AD1933YSTZ-RL have?
The AD1933YSTZ-RL has eight DAC channels with differential outputs.
- What is the resolution of the AD1933YSTZ-RL?
The resolution of the AD1933YSTZ-RL is 24 bits.
- What is the maximum sampling frequency of the AD1933YSTZ-RL?
The maximum sampling frequency of the AD1933YSTZ-RL is 192 kHz.
- What type of package does the AD1933YSTZ-RL come in?
The AD1933YSTZ-RL comes in a 64-lead LQFP package.
- How does the AD1933YSTZ-RL minimize EMI?
The AD1933YSTZ-RL minimizes EMI through the use of an on-board PLL and continuous time architectures, along with 3.3 V supplies.
- What control interface does the AD1933YSTZ-RL use?
The AD1933YSTZ-RL uses an SPI port for microcontroller control.
- What are some of the key applications of the AD1933YSTZ-RL?
The AD1933YSTZ-RL is used in automotive audio systems, home theater systems, set-top boxes, and digital audio effects processors.
- Can the AD1933YSTZ-RL operate in different modes?
Yes, the AD1933YSTZ-RL supports right-justified, left-justified, I2S, and TDM modes, as well as master and slave modes up to 16-channel input/output.
- How is the volume control managed in the AD1933YSTZ-RL?
The AD1933YSTZ-RL features log volume control with an autoramp function and software-controllable clickless mute.
