The AD1896 is a 24-bit high performance single-chip second generation asynchronous sample rate converter
The AD1896 is a 24‑bit, high‑performance, single‑chip asynchronous sample‑rate converter offering up to 192 kHz input and output sampling frequencies, 142 dB A‑weighted dynamic range, and THD+N from –117 dB to –133 dB. It supports multiple serial data formats, bypass mode, and matched‑phase mode for daisy‑chaining multiple devices.
The document provides a product overview, detailed electrical specifications, timing diagrams, pin‑out, package dimensions, ordering information, and revision history, along with safety warnings and recommended ESD precautions.
| Maximum Sample Rate | 215 kHz (MCLK_I = 30 MHz) |
|---|---|
| Dynamic Range (A‑Weighted) | 142 dB |
| THD+N Range | –117 dB to –133 dB |
| Core Supply Voltage (VDD_CORE) | 3.3 V (typical) |
| IO Supply Voltage (VDD_IO) | 5.0 V or 3.3 V |
| Input Voltage High | 2.4 V |
| Input Voltage Low | 0.8 V |
The AD1896 can operate up to 215 kHz when the master clock (MCLK_I) is 30 MHz.
The core supply (VDD_CORE) is typically 3.3 V, and the I/O supply (VDD_IO) can be 5.0 V or 3.3 V.
Yes, asserting the BYPASS pin high routes the input directly to the serial output, bypassing the sample‑rate conversion.