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DS90UA101TRTVRQ1: Multi-Channel Digital Audio Link——Automotive Multi-Channel Digital Audio Serialiser

Model: DS90UA101TRTVRQ1

Package: WQFN-32

Type: Automotive Multi-Channel Digital Audio Serialiser

Overview:

The DS90UA101TRTVRQ1 serialiser, used in conjunction with the DS90UA102-Q1 deserialiser, provides a solution for distributing digital audio in multi-channel audio systems. It sends data over a single shielded twisted pair or coaxial cable using a high-speed serialised interface with the aid of an embedded clock. The serial bus system is configured to support high-speed forward data transmission and low-speed bi-directional control channels on the link. The combined use of digital audio, general-purpose IO, and control signals on a single differential pair reduces interconnect size and weight, while also reducing design issues related to skew and system latency.

The DS90UA101TRTVRQ1 serialiser embeds the clock and shifts the signal level to high-speed low-voltage differential signalling. The device serialises up to eight digital audio data inputs, word/frame synchronisation, bit clock and system clock. Four dedicated general-purpose input pins and four general-purpose output pins provide flexible control and interrupt signalling to remote devices.

DS90UA101TRTVRQ1 - Product Features:

Digital Audio Serialiser

Flexible digital audio inputs supporting I2S (stereo) or time division multiplexing (TDM) (multichannel) formats

Coaxial or single differential pair interconnections

High-speed serial output interface

Very low latency (< 15µs)

Bi-directional control interface channels with I2C-compatible serial control buses

Supports up to 8 stereo I2S or TDM audio inputs

Supports audio system frequencies from 10MHz to 50MHz

Single 1.8V power supply

1.8V or 3.3V I/O connectors

4/4 dedicated general-purpose inputs/outputs

Up to 15m of AC-coupled shielded twisted pair (STP) or coaxial cable

DC equalisation & scrambling data with embedded clocks

Automotive grade product: AEC-Q100 Level 2 compliant

Temperature range: -40°C to 105°C

Applications

Automotive infotainment systems

Active noise cancellation systems

Distributed multi-channel audio systems

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