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PDM-to-PCM Conversion with AMBA Interface
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.
The IP is portable to any logic process node for silicon realization. It is now silicon-proven in TSMC logic process.
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
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
- IoT Sensor Hubs
- Wearable Devices
- Smart Home Appliances
- PMP, MID
- Tablets
- VoIP and Featured Phones
- Automobile Voice/Audio System
Block Diagram of the PDM-to-PCM Conversion with AMBA Interface IP Core
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Digital microphone interface
- 120dB PDM-to-PCM Digital Microphone Interface
- 16-22Bit 97dB Stereo Audio CODEC with Linein/Digital and Analog Microphone Recording, Lineout/Headphone/Speaker Playback, SMIC 65nmll
- Analog to Digital Converter for digital microphone, with its embedded Voice Activity Detection (VAD) module.
- USB 2.0 Audio Devices Design Platform
- PDM to PCM Conversion, SMIC 65nmLL
- 16-22Bit Stereo Audio CODEC with Linein/Microphone Recording, Lineout/Headphone Playback, SMIC 0.11um