Overview
The AD1896AYRSZRL, produced by Analog Devices Inc., is a 24-bit, high-performance, single-chip, second-generation asynchronous sample rate converter. Building on the experience from the first asynchronous sample rate converter, the AD1890, the AD1896 offers enhanced performance and additional features. It is designed to convert audio data from one sample rate to another, supporting sample rates up to 192 kHz for both input and output. This converter is particularly useful in audio applications requiring precise and flexible sample rate conversion.
Key Specifications
| Parameter | Specification |
|---|---|
| Resolution | 24-bit |
| Sample Rate | Up to 192 kHz for both input and output |
| THD + N | -117 dB to -133 dB depending on sample rate and input frequency |
| Dynamic Range | 142 dB (A-Weighted) |
| Upsampling and Downsampling Ratios | 1:8 upsampling, 7.75:1 downsampling |
| Package Type | 28-Lead SSOP |
| Supply Voltage | VDD_CORE = 3.3 V ± 5%, VDD_IO = 5.0 V ± 10% |
| Operating Temperature | -40°C to +105°C |
Key Features
- Improved THD + N and dynamic range performance
- Support for multiple serial formats including left justified, I2S, right justified, and TDM
- Bypass mode for passing through non-audio data or synchronous sample rates
- 64-tap FIR filter with 2x20 polyphases
- Digital servo loop for precise sample rate tracking
- Matched-phase mode for synchronized output data formats
- Ability to cascade multiple AD1896 devices in TDM mode
- Improved jitter rejection
Applications
- Audio processing systems requiring sample rate conversion
- Digital audio workstations and professional audio equipment
- Consumer audio devices such as CD players, DVD players, and digital audio players
- Professional recording and playback systems
- Systems integrating with digital signal processors (DSPs)
Q & A
- What is the primary function of the AD1896AYRSZRL?
The primary function of the AD1896AYRSZRL is to perform asynchronous sample rate conversion for audio data.
- What are the supported sample rates for the AD1896AYRSZRL?
The AD1896AYRSZRL supports sample rates up to 192 kHz for both input and output.
- What is the resolution of the AD1896AYRSZRL?
The resolution of the AD1896AYRSZRL is 24-bit.
- What are the THD + N specifications for the AD1896AYRSZRL?
The THD + N specifications range from -117 dB to -133 dB depending on the sample rate and input frequency.
- What is the dynamic range of the AD1896AYRSZRL?
The dynamic range is 142 dB (A-Weighted).
- Can the AD1896AYRSZRL be used in TDM mode?
- What is the bypass mode in the AD1896AYRSZRL?
The bypass mode allows the serial input data to be directly passed to the serial output port without any processing, useful for passing through non-audio data or when the input and output sample rates are synchronous.
- What is the operating temperature range for the AD1896AYRSZRL?
The operating temperature range is -40°C to +105°C.
- What package type is the AD1896AYRSZRL available in?
The AD1896AYRSZRL is available in a 28-Lead SSOP package.
- Can the AD1896AYRSZRL be used with digital signal processors (DSPs)?
