I2S/PDM/TDM Controller IP

Design IP

Overview

SmartDV’s I2S/PDM/TDM Controller IP is a silicon-proven, versatile audio interface solution designed for high-fidelity digital audio transmission across a wide range of consumer, automotive, and industrial applications. Supporting Inter-IC Sound (I2S), Pulse Density Modulation (PDM), and Time Division Multiplexing (TDM) protocols, this IP enables seamless integration with various digital microphones, codecs, and DSPs.

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. Its robust architecture supports multiple data formats, configurable word lengths, and clocking schemes, ensuring reliable and efficient audio data handling across complex SoC environments.

Benefits

Comprehensive Audio Interface Support – Combines I²S, Pulse Density Modulation (PDM), and Time Division Multiplexed (TDM) interfaces for flexible digital audio connectivity
Bidirectional and Simultaneous Operation – Enables simultaneous audio playback and recording through independent transmit and receive channels
Versatile Audio Format Support – Supports I²S, Left-Justified, Right-Justified, PCM, and TDM modes for compatibility across a wide range of codecs and DSPs
Configurable Audio Resolution – Programmable 8-, 16-, 24-, and 32-bit DAC/ADC resolution with adjustable word select and data width
Wide Sampling Rate Range – Operates across 8 kHz to 192 kHz sample rates, meeting the needs of consumer, automotive, and professional audio systems
High-Efficiency Data Handling – Incorporates four 8-word FIFOs (left/right, transmit/receive) with programmable thresholds for interrupt or DMA-driven operation
Flexible Clocking Architecture – Offers four selectable reference clocks with programmable dividers for bit clock generation and word select control
Robust Interrupt and Power Management – Includes underrun/overrun interrupts, freeze/suspend debug modes, and local clock gating for low-power efficiency

Compliance and Compatibility

Fully compliant with Philips I²S, PDM, and TDM audio interface specifications
Supports Left-Justified, Right-Justified, PCM/DSP, and TDM audio formats
Compatible with all major EDA synthesis, simulation, and linting flows

Related Products

I2S Controller IP

I2S/PDM/TDM VIP