Overview
The AD1835AAS is a high-performance, single-chip CODEC (Coder-Decoder) designed by Analog Devices Inc. This integrated circuit features four stereo Digital-to-Analog Converters (DACs) and one stereo Analog-to-Digital Converter (ADC). It is optimized for high-quality audio applications, offering advanced features such as multibit sigma-delta modulators, digital interpolation filters, and continuous-time voltage output analog sections.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of ADCs / DACs | 2 / 8 | - |
| Resolution | 24 Bits | - |
| Sample Rate | Up to 96 kHz (192 kHz on DAC 1) | - |
| Dynamic Range, ADCs / DACs | 105 dB / 108 dB | dB |
| Signal-to-Noise Ratio (SNR), ADCs / DACs | 105 dB / 108 dB | dB |
| Total Harmonic Distortion + Noise (THD + N), ADCs / DACs | -95 dB / -95 dB | dB |
| Operating Temperature | -40°C to +85°C | °C |
| Voltage Supply, Analog/Digital | 4.5V to 5.5V | V |
| Package Type | 52-Lead MQFP | - |
Key Features
- High-performance digital interpolation filters and multibit sigma-delta modulators with 'Perfect Differential Linearity Restoration' technology.
- Supports 256 x fS, 512 x fS, and 768 x fS Master Mode Clocks.
- Flexible serial data port with Left-Justified, Right-Justified, I2S, and DSP compatible serial modes.
- TDM interface mode supports 8-in/8-out using a single SHARC SPORT.
- On-chip volume controls per channel with 1024-step linear scale.
- DAC and ADC software controllable clickless mutes.
- Digital de-emphasis processing.
- Power-Down Mode and Soft Power-Down Mode.
- 3.3 V tolerant digital interface.
Applications
- DVD Video and Audio Players
- Home Theater Systems
- Automotive Audio Systems
- Audio/Visual Receivers
- Digital Audio Effects Processors
Q & A
- What is the resolution of the ADCs and DACs in the AD1835AAS? The resolution is 24 bits for both ADCs and DACs.
- What are the supported sample rates for the AD1835AAS? The AD1835AAS supports sample rates up to 96 kHz, with one DAC capable of 192 kHz.
- What types of serial data ports are supported by the AD1835AAS? The AD1835AAS supports Left-Justified, Right-Justified, I2S, and DSP compatible serial modes.
- Can the AD1835AAS operate with different voltage supplies for analog and digital sections? Yes, it can operate with a single 5 V supply and also has a separate supply pin for the digital interface to interface with 3.3 V devices.
- What is the operating temperature range of the AD1835AAS? The operating temperature range is -40°C to +85°C.
- What kind of package is the AD1835AAS available in? The AD1835AAS is available in a 52-Lead MQFP package.
- Does the AD1835AAS have on-chip volume controls? Yes, it has on-chip volume controls per channel with a 1024-step linear scale.
- Can the AD1835AAS be configured for TDM interface mode? Yes, it supports TDM interface mode for 8-in/8-out using a single SHARC SPORT.
- What are the typical dynamic range and SNR values for the ADCs and DACs? The typical dynamic range and SNR values are 105 dB for ADCs and 108 dB for DACs.
- Does the AD1835AAS support power-down modes? Yes, it supports Power-Down Mode and Soft Power-Down Mode.
