Overview
The AD1835AASZ-REEL, produced by Analog Devices Inc., is a high-performance single-chip CODEC (Coder-Decoder) designed for advanced audio applications. This device features four stereo Digital-to-Analog Converters (DACs) and one stereo Analog-to-Digital Converter (ADC). Each DAC includes a high-performance digital interpolation filter, a multibit sigma-delta modulator, and a continuous-time voltage output analog section. The ADC section comprises two 24-bit conversion channels with multibit sigma-delta modulators and decimation filters. The AD1835A is optimized for use in various audio systems, offering flexible serial interface modes and support for up to 96 kHz sample rates.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltages (AVDD, DVDD) | - | 5.0 | - | V |
| Operating Temperature | -40 | - | 85 | °C |
| ADC Resolution | - | - | 24 Bits | - |
| DAC Resolution | - | - | 24 Bits | - |
| Sample Rate | - | - | Up to 96 kHz | - |
| THD + N (ADC) | - | - | -95 dB | - |
| THD + N (DAC) | - | - | -95 dB | - |
| SNR (ADC) | - | - | 105 dB | - |
| SNR (DAC) | - | - | 108 dB | - |
| Package Type | - | - | 52-Lead MQFP | - |
Key Features
- Four stereo DACs and one stereo ADC with 24-bit resolution.
- Supports sample rates up to 96 kHz and 192 kHz on one DAC.
- Multi-bit sigma-delta modulators with 'Perfect Differential Linearity Restoration' technology.
- Data-directed scrambling DACs for reduced jitter sensitivity.
- Differential outputs for optimum performance.
- On-chip volume controls per channel with a 1024-step linear scale.
- Software-controllable clickless mutes for DAC and ADC.
- Digital de-emphasis processing.
- Flexible serial interface supporting left-justified, right-justified, I2S, and DSP compatible modes.
- Power-down and soft power-down modes.
- Separate supply pin for 3.3 V digital interface compatibility.
Applications
- DVD video and audio players.
- Home theater systems.
- Automotive audio systems.
- Audio/visual receivers.
- Digital audio effects processors.
Q & A
- What is the AD1835AASZ-REEL? The AD1835AASZ-REEL is a high-performance single-chip CODEC produced by Analog Devices Inc., featuring four stereo DACs and one stereo ADC.
- What are the key specifications of the AD1835AASZ-REEL? Key specifications include 24-bit resolution, support for up to 96 kHz sample rates, and a 52-lead MQFP package.
- What types of serial interface modes does the AD1835A support? The AD1835A supports left-justified, right-justified, I2S, and DSP compatible serial modes.
- What is the operating temperature range of the AD1835AASZ-REEL? The operating temperature range is -40°C to +85°C.
- Does the AD1835AASZ-REEL have on-chip volume controls? Yes, it has on-chip volume controls per channel with a 1024-step linear scale.
- What are the power-down modes available in the AD1835AASZ-REEL? The device features power-down and soft power-down modes.
- Can the AD1835AASZ-REEL be used with 3.3 V power supplies? Yes, it has a separate supply pin for 3.3 V digital interface compatibility.
- What are some common applications of the AD1835AASZ-REEL? Common applications include DVD video and audio players, home theater systems, automotive audio systems, and digital audio effects processors.
- What is the THD + N and SNR performance of the AD1835AASZ-REEL? The ADC and DAC both offer -95 dB THD + N and up to 108 dB SNR.
- Does the AD1835AASZ-REEL have digital de-emphasis processing? Yes, it includes digital de-emphasis processing.
