I2S Controller IP

Design IP

Overview

SmartDV’s I2S (Inter-IC Sound) Controller IP is a silicon-proven solution for seamless digital audio data transmission between integrated circuits. Designed for high-fidelity, low-latency audio applications, it supports standard I2S protocol features including master/slave modes, variable data word lengths, and multiple audio channel configurations, making it ideal for consumer electronics, automotive infotainment systems, and embedded audio platforms.

Designed for flexibility, the IP core is highly configurable to meet specific design requirements, supporting both ASIC and FPGA implementations while optimizing for area, power, and performance.

Benefits

Bidirectional Audio Interface – Supports simultaneous playback and recording through two unidirectional serial data lines
Versatile Audio Format Support – Compatible with I²S, Left-Justified, and Right-Justified formats, along with Time Division Multiplexed (TDM) operation
Configurable Data Resolution – Supports 8-, 16-, 24-, and 32-bit DAC/ADC resolution for flexible audio precision
Wide Sampling Rate Range – Operates across standard sampling frequencies including 8 kHz, 16 kHz, 24 kHz, 32 kHz, 48 kHz, 96 kHz, and 192 kHz
Programmable Word Select and Clocks – Offers configurable word select resolution (8–32 clock cycles) and four selectable reference clock sources with programmable dividers
High-Performance Data Handling – Includes four 8-word FIFOs (left/right, transmit/receive) with programmable thresholds for interrupt or DMA-driven operation
Advanced Interrupt Management – Provides dedicated interrupts for transmit underrun and receive overrun events with separate enables
Power and Debug Efficiency – Supports freeze/suspend modes for system debugging and local clock gating for low-power operation

Compliance and Compatibility

Fully compliant with the Philips I²S bus specification
Supports Left-Justified, Right-Justified, and TDM audio standards
Compatible with all major EDA synthesis, simulation, and linting flows

Related Products

I2S/PDM/TDM Controller IP

I2S/PDM/TDM VIP