The AD1892 is a complete EIAJ CP-340 (CP-1201), IEC-958, AES/EBU, S/PDIF compatible digital audio receiver and asynchronous sample rate converter. It features status pins and microprocessor interfaces for stand-alone and microcontroller-oriented operation. The product also integrates a channel status buffer and Q-channel subcode buffer, supporting EIAJ CP-2401. With a 20-bit SamplePort® architecture, it provides superb jitter rejection on the input port. The sample rate conversion ranges from 8 kHz to 48 kHz with a 1:5 upsampling range and a 1:0.85 downsampling range. It offers a dynamic range of 120 dB and -113 dB THD+N @ 1 kHz. Additionally, it includes features such as CRC calculation, a four-wire SPI™ compatible serial control port, mute input pin, power-down mode, single +5 V supply, flexible three-wire serial data port with multiple modes (left-justified, right-justified, and I2S-compatible). The AD1892 is widely used in DVD, DAT, MD, DCC, and CD-R recorders and players, computer multimedia products, DAB receivers, and automotive digital audio networks.
The AD1892 combines a fully compatible digital audio receiver (DAR) with an asynchronous sample‑rate converter, supporting EIAJ CP‑340, IEC‑958, AES/EBU and S/PDIF standards. It provides Q‑Channel subcode and Channel Status buffers, a 20‑bit SamplePort® architecture, and a flexible SPI‑compatible serial control interface for microcontroller‑oriented operation.
The device operates from a single +5 V supply, offers a 1:5 up‑sampling range (8 kHz → 48 kHz) and down‑sampling to 44.1 kHz, delivers 120 dB dynamic range with –113 dB THD+N, and is available in a 28‑lead SOIC package suitable for industrial temperature ranges (‑40 °C to +85 °C).
| Supply Voltage (DVDD) | 4.5 V – 5.5 V |
|---|---|
| Operational Current | 50 mA – 60 mA |
| THD+N (1 kHz Full‑Scale Input) | –113 dB |
| Sample‑Rate Conversion Range | 8 kHz → 48 kHz (1:5 up‑sampling), 48 kHz → 44.1 kHz (down‑sampling) |
| Input Word Width | up to 20 bits |
| Package | 28‑lead SOIC |
The AD1892 operates from a single +5 V supply, with a voltage range of 4.5 V to 5.5 V.
It is compatible with EIAJ CP‑340, IEC‑958, AES/EBU and S/PDIF.
The chip is supplied in a 28‑lead SOIC package.