The AR35F01A is a digitally coded conversion IP that translates 8-ch (4 stereo channels) of 16-24bit pulse-code modulated (PCM) input data into pulse-width modulated (PWM) outputs. The IP supports three different output schemes, AD, BD and ternary to reduce EMI impact to ambient environment. The PWM outputs can driver off-chip or on-chip P/N MOSFET switches for power-efficient Class D speaker amplifier configuration.
The IP supports standard I2S, left-justified, PCM/DSP digital audio interface (DAI) data format inputs. The DAIs operates at sampling rates ranging from 8KHz to 48KHz. The PWM outputs and features are configurable with on-chip I2C/SPI/AMBA interfaces. It also supports left-channel only, right-channel only mono operation as well as the default stereo operation mode.
8-Channel PCM-to-PWM Modulator in Fujitsu 55nm
Overview
Key Features
- 8-Ch PCM-to-PWM Conversion
- Sample rate: 8KHz~48KHz
- Synchronous SR among channels
- Low switching rate
- PWM output modes: AD, BD, Ternary
- Soft-Mute feature
- PGA control: -87dB~+40dB, 1dB/step
- Click-noise suppression
- Programmable noise-gating/auto-mute
- Digital filters
- Short circuit protection
- ESD and Thermal protection
- Digital audio interface
- I2C, SPI interface controlling
- AMBA interface option
Benefits
- Reduced EMI impact
- Low BOM cost
Applications
- 2.1~7.1 Home Sound System
- Car Audio
- Sensor Hub
- Voice-in-Command System
Deliverables
- Datasheet
- Integration guidelines
- Test plan
- Netlist
- Test bench and vectors
- Backend scripts
- Footprint (.lef)
- Timing model (.lib)
- Silicon validation report
- AE support
Technical Specifications
Foundry, Node
Fujitsu, 55nm
Maturity
Mass Production
Availability
Now