120dB PDM-to-PCM Digital Microphone Interface

Features

• SNR 122dB; DR 121dB
• PDM (pulse-density modulated) Input
• PCM (pulse-code modulated) output
• Support PDM_CLK rates of 0.512MHz~8.64MHz
• Support left /right mono mode, stereo mode
• Sampling Rate: 8K-96KHz, upgrade to higher Fs
• PGA Gain: Tunable with a wide range, 0.75dB/Step
• Soft gain tuning
• Soft mute
• Digital audio interface (master & slave)
• DAI data format: I2S, Left-justified, PCM
• Control Interface: Register / I2C, APB/MCU bus

Benefits

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

Deliverables

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

Applications

• Machine Learning / Voice Recognition System
• IoT System and Node
• Smart Wearable Devices
• Smart Voice/Audio Home Appliance
• Portable Media
• VR/AR/MR System
• Surveillance System

Block Diagram of the 120dB PDM-to-PCM Digital Microphone Interface IP Core

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