Overview
The AD1934WBSTZ-RL, produced by Analog Devices Inc., is a high-performance, single-chip digital-to-analog converter (DAC) that provides eight channels of single-ended output. This device utilizes Analog Devices' patented multibit sigma-delta (Σ-Δ) architecture, ensuring high-quality audio conversion. The AD1934 operates from a single 3.3 V digital and analog supply, minimizing power consumption and reducing electromagnetic interference (EMI). It includes an SPI port for microcontroller control, allowing for adjustments in volume and other parameters. The device is available in a 48-lead LQFP package and is designed for various audio applications requiring low EMI and high reliability.
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) | - | 56 mA (fS = 48 kHz) | 95 mA (fS = 192 kHz) | mA |
| Analog Current (Normal Operation) | - | 74 mA | - | mA |
| Power Consumption (All Supplies) | - | 429 mW | - | mW |
| Sample Rates | 8 kHz | - | 192 kHz | - |
| Resolution | - | - | 24 bits | - |
| Dynamic Range and SNR | - | - | 108 dB | - |
| THD + N | - | - | -94 dB | - |
| Operating Temperature Range | -40°C | - | +125°C | °C |
Key Features
- Eight digital-to-analog converters (DACs) with single-ended output using Analog Devices' patented multibit sigma-delta (Σ-Δ) architecture.
- PLL generated or direct master clock, eliminating the need for a separate high-frequency master clock.
- Low EMI design, including on-board PLL and continuous time architectures.
- Single 3.3 V digital and analog supply, minimizing power consumption.
- Tolerance for 5 V logic inputs.
- Log volume control with autoramp function and software-controllable clickless mute.
- SPI controllable for flexibility, allowing microcontroller adjustment of volume and other parameters.
- Supports right-justified, left-justified, I2S, and TDM modes, with master and slave modes up to 16-channel in/out.
Applications
- Automotive audio systems.
- Home theater systems.
- Set-top boxes.
- Digital audio effects processors.
Q & A
- What is the AD1934WBSTZ-RL used for?
The AD1934WBSTZ-RL is used for high-performance digital-to-analog conversion in various audio applications, including automotive audio systems, home theater systems, set-top boxes, and digital audio effects processors.
- What is the resolution and sample rate of the AD1934WBSTZ-RL?
The AD1934WBSTZ-RL has a resolution of 24 bits and supports sample rates from 8 kHz to 192 kHz.
- What is the power supply requirement for the AD1934WBSTZ-RL?
The AD1934WBSTZ-RL operates from a single 3.3 V digital and analog supply.
- How does the AD1934WBSTZ-RL minimize EMI?
The AD1934WBSTZ-RL is designed with low EMI in mind, using an on-board PLL and continuous time architectures to minimize emissions).
- What interface does the AD1934WBSTZ-RL use for control?
The AD1934WBSTZ-RL uses an SPI port for microcontroller control, allowing adjustments in volume and other parameters).
- What are the key audio specifications of the AD1934WBSTZ-RL?
The AD1934WBSTZ-RL has a dynamic range and SNR of 108 dB and a THD + N of -94 dB).
- What package type is the AD1934WBSTZ-RL available in?
The AD1934WBSTZ-RL is available in a 48-lead LQFP package).
- Is the AD1934WBSTZ-RL qualified for automotive applications?
Yes, the AD1934WBSTZ-RL is qualified for automotive applications).
- What are the operating temperature ranges for the AD1934WBSTZ-RL?
The operating temperature range for the AD1934WBSTZ-RL is from -40°C to +125°C).
- Does the AD1934WBSTZ-RL support different audio modes?
Yes, the AD1934WBSTZ-RL supports right-justified, left-justified, I2S, and TDM modes, with master and slave modes up to 16-channel in/out).
