Overview
The AD1895AYRSRL, 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 family of asynchronous sample rate converters (the AD1890 to AD1893), the AD1895 offers improved performance and additional features. It is designed to handle sample rate conversions with high accuracy and minimal distortion, making it suitable for various audio and digital signal processing applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 24-bit | |
| Sample Rate | Up to 192 kHz | |
| THD + N | –115 dB to –122 dB | |
| Dynamic Range | 128 dB (A-Weighted, 20 Hz to 20 kHz BW) | |
| Upsampling/Downsampling Ratios | 1:8 upsampling, 7.75:1 downsampling | |
| Supply Voltages | VDD_CORE: 3.3 V, VDD_IO: 3.3 V to 5 V | V |
| Operating Temperature | –40°C to +105°C | °C |
| Package | 28-Lead SSOP |
Key Features
- Automatically senses sample frequencies without programming required.
- Attenuates sample clock jitter.
- Supports multiple serial formats including left-justified, I2S, right-justified (16-, 18-, 20-, 24-bit), and TDM.
- Master/Slave input and output modes.
- Bypass mode and TDM daisy-chain mode for cascading multiple AD1895 devices.
- Hardware controllable soft mute.
- Linear phase FIR filter.
- Flexible 3-wire serial data port.
Applications
- Home Theater Systems
- Automotive Audio Systems
- DVD, DVD-R, CD-R
- Set-Top Boxes
- Digital Audio Effects Processors
Q & A
- What is the resolution of the AD1895AYRSRL?
The AD1895AYRSRL has a 24-bit resolution.
- What are the maximum sample rates supported by the AD1895AYRSRL?
The AD1895AYRSRL supports sample rates up to 192 kHz for both input and output.
- What is the dynamic range of the AD1895AYRSRL?
The dynamic range is 128 dB (A-Weighted, 20 Hz to 20 kHz BW).
- Does the AD1895AYRSRL support multiple serial formats?
Yes, it supports left-justified, I2S, right-justified (16-, 18-, 20-, 24-bit), and TDM serial formats.
- Can the AD1895AYRSRL be used in master or slave modes?
Yes, it supports both master and slave input and output modes.
- What is the operating temperature range of the AD1895AYRSRL?
The operating temperature range is –40°C to +105°C.
- What type of package does the AD1895AYRSRL come in?
The AD1895AYRSRL comes in a 28-Lead SSOP package.
- Does the AD1895AYRSRL have a bypass mode?
Yes, it includes a bypass mode.
- Can multiple AD1895 devices be cascaded?
Yes, it supports TDM daisy-chain mode for cascading multiple AD1895 devices.
- What is the THD + N range of the AD1895AYRSRL?
The THD + N range is –115 dB to –122 dB depending on sample rate and input frequency.
