PDM-to-PCM Conversion with AMBA Interface

Overview

The AR36T01 is a soft macro low-power digital microphone interface modulator IP. The IP converts stereo/mono 1-bit pulse-density modulated (PDM) bit stream data from external digital microphones into 16-22bit pulse-code modulated (PCM) data for base-band processing. It supports AHB master interface with DMA/FIFO for data transfer to the SoC system.

The IP is portable to any logic process node for silicon realization. It is now silicon-proven in TSMC logic process.

Key Features

SNR 100dB; THD -100dB
PDM (pulse-density modulated) Input
PCM (pulse-code modulated) output
Support PDM_CLK rates of 768kHz~4.32MHz, 5.28MHz~8.64MHz
Support left /right, or stereo inputs
Sampling Rate: 8K-48KHz, upgrade to 96KHz
Digital audio interface (master & slave)
DAI data format: I2S, Left-justified, PCM
AMBA Interfaces

Benefits

Easy Integration
Quick Time-to-Market
Reduced R&D Cost
Enhance 1st Tape Out Success
Differentiated SoC Solution
Early Market Penetration

Block Diagram

Applications

IoT Sensor Hubs
Wearable Devices
Smart Home Appliances
PMP, MID
Tablets
VoIP and Featured Phones
Automobile Voice/Audio System

Deliverables

Full Datasheet
Test Plan
Synthesized Gate Netlist or RTL
Timing Constraint (.sdc)
Test Benches and Test Vectors
Integration Support
Silicon Validation & AE support

Technical Specifications

Foundry, Node

TSMC

Maturity

Silicon Proven

Availability

Now