Overview
The AD1852JRS from Analog Devices Inc. is a high-performance, single-chip, stereo digital-to-analog converter (DAC) designed for advanced audio playback systems. This multibit, Σ-Δ (Sigma-Delta) modulator integrates digital interpolation filters and analog output drive circuitry, making it a comprehensive solution for high-end audio applications. The AD1852 operates from a single 5 V power supply and is housed in a 28-lead SSOP package, suitable for operation over a temperature range of 0°C to 70°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 24 bits | |
| Sample Rate | Up to 192 kHz | |
| Supply Voltage | 5.0 V | V |
| Operating Temperature | 0°C to 70°C | °C |
| Package Type | 28-Lead SSOP | |
| Input Data Format | Twos-complement, MSB-first | |
| Serial Data Port Modes | Right-justified, Left-justified, I2S-compatible, DSP serial port | |
| Word Length | 16, 18, 20, 24 bits | |
| Thermal Resistance (Junction-to-Ambient) | 109 °C/W | °C/W |
Key Features
- Fully compatible with DVD formats, including 192 kHz and 96 kHz sample frequencies, and 24-bit resolution.
- Backwards compatible with Red Book compact discs, supporting 50 μs/15 μs digital de-emphasis.
- Flexible serial data input port with right-justified, left-justified, I2S-compatible, and DSP serial port modes.
- On-chip stereo attenuator and mute, programmable through an SPI-compatible serial control port.
- Supports a wide range of sample rates: 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, and 192 kHz.
- Glueless interconnection to various ADCs, DSP chips, AES/EBU receivers, and sample rate converters.
- Operates from a single 5 V power supply.
Applications
- High-end DVDs and CDs.
- Home theater systems.
- Automotive audio systems.
- Sampling musical keyboards.
- Digital mixing consoles.
- Digital audio effects processors.
Q & A
- What is the resolution and maximum sample rate of the AD1852JRS?
The AD1852JRS has a resolution of 24 bits and supports sample rates up to 192 kHz.
- What types of serial data port modes does the AD1852JRS support?
The AD1852JRS supports right-justified, left-justified, I2S-compatible, and DSP serial port modes.
- What is the operating temperature range of the AD1852JRS?
The AD1852JRS operates over a temperature range of 0°C to 70°C.
- What is the package type of the AD1852JRS?
The AD1852JRS is housed in a 28-lead SSOP package.
- Does the AD1852JRS support digital de-emphasis for Red Book compact discs?
Yes, the AD1852JRS supports 50 μs/15 μs digital de-emphasis for Red Book compact discs.
- How is the serial mode of the AD1852JRS configured?
The serial mode can be configured using either external mode pins or the mode select bits in the SPI control register.
- What types of audio systems can the AD1852JRS be used in?
The AD1852JRS can be used in high-end DVDs, CDs, home theater systems, automotive audio systems, and other professional audio equipment.
- Does the AD1852JRS have an on-chip stereo attenuator and mute?
Yes, the AD1852JRS has an on-chip stereo attenuator and mute, programmable through an SPI-compatible serial control port.
- What is the input data format of the AD1852JRS?
The AD1852JRS accepts serial audio data in twos-complement, MSB-first format.
- Can the AD1852JRS be connected gluelessly to other digital audio components?
Yes, the AD1852JRS can be connected gluelessly to various ADCs, DSP chips, AES/EBU receivers, and sample rate converters.
