The ADAV400 Rev. A is an audio codec from Analog Devices that includes an embedded SigmaDSP processor, SigmaStudio™ graphical programming tool, fully programmable audio digital signal processing (DSP), various third-party audio algorithms, scalable digital audio delay line, I2C control interface, 400 ms @ 48 kHz pool (200 ms for stereo channel), 3.3 V (analog), 1.8 V (digital core), 3.3 V (digital interface), high performance integrated analog-to-digital converters (ADCs) and digital-to-analog converters (DACs), single 3.3 V operation on-chip regulator, 1 stereo analog input (ADC), 80-lead LQFP (14 mm × 14 mm), 4 stereo analog inputs with mux-to-stereo ADC, 0°C to 70°C temperature range, 4 stereo (8-channel) analog outputs (DACs), dedicated headphone amplifier, etc.
The ADAV400 is an audio codec that integrates high‑performance analog and digital I/Os with an embedded SigmaDSP processor. It offers up to eight analog input channels (four stereo pairs), eight analog output channels, a dedicated headphone output, and multichannel digital I/O with an integrated sample‑rate converter supporting 5 kHz‑50 kHz. The device is targeted at ATV/AV, TV audio, set‑top boxes, and general audio enhancement applications.
This handbook provides a functional block diagram, detailed specifications, digital timing diagrams, absolute maximum ratings, pin‑out descriptions, and an ordering guide. It also includes information on power supplies, control ports, and programming considerations for designers using the SigmaStudio™ tool.
| Operating Temperature Range | 0°C to 70°C |
|---|---|
| Analog Input Channels | 8 (four stereo input channels) |
| ADC Resolution | 24 Bits |
| ADC Dynamic Range (A‑Weighted) | 90 dB (typical 95 dB) |
| DAC Resolution | 24 Bits |
| DAC Full‑Scale Output | 1 Vrms |
| Headphone Output Channels | 2 (one stereo channel) |
| Master Clock Frequency | 12.288 MHz |
| Supply Voltage (AVDDn') | 3.3 V |
| Package Type | 80‑Lead Low Profile Quad Flat Package (LQFP) ST‑80‑2 |
The integrated sample‑rate converter supports input sample rates from 5 kHz to 50 kHz.
The ADAV400 provides eight analog input channels, arranged as four stereo input pairs.
The device operates from 0 °C up to 70 °C.
It is supplied in an 80‑lead low‑profile quad flat package (LQFP) ST‑80‑2.