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µPD9971
Features
- PCM sound generation method provides realistic sound reproduction
- Enables rich audio content creation and playback with a maximum of 128 polyphonic tones
- Includes 3D positioning technology with real-time processing
- Supports Mobile XMF audio standard。
- Contains a digital parametric equalizer for equalizing speakers
- Four MIDI ports embedded in the sound generator core enable simultaneous playback of up to four melodies
- High performance D/A converter with 16-bit resolution
- Supports five sampling frequency modes (fs) modes: 8kHz, 16kHz, 32kHz, 44.1kHz and 48kHz
- 16-bit audio serial I/O interface
- Variable serial data input frequency (32 fs to 64 fs during slave mode)
- Supports right-justified, left-justified and IIS formats
- External serial I/O interface for the sound generator
- Stereo line output for audio
- Supports 8-bit parallel interface and serial interface (SPI) for CPU
- Output control functions for vibration and LED
- Built-in PLLs support various clock types
- Regulator for digital power supply (DVDD)
- Power supply voltages:
I/O power supply (EVDD) 1.7 to 3.3 V
PLL power supply (PLLVDD) 2.7 to 3.3 V
Analog power supply (AVDD) 2.7 to 3.3 V
Regulator power supply (REGVDD) 2.7 to 3.3 V - Operating ambient temperature range: -20 to +85°C
Block Diagram
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