BU8709KN

· Simultaneous generation of up to 64 polyphonic tones out of a tone palette of 222 sounds
· High-quality tone reproduction using Fs=44.1kHz, two-voice method
· 12bit pitch bending and modulation support
· Stereo and monaural modes
· Built-in equalizer (3 channels) and vibration function
· Built-in LED (3 channels)
· Built-in reverb function
· Plays up to four songs simultaneously
· Built-in ADPCM encoder (1 channel) and decoder (2 channel), enables mixing with melody
·Select among m-law, A-law, and linear input for encoder
·Control from CPU using serial or parallel interface
·Built-in FIFO for sound source and ADPCM to reduce CPU's processing load
·Built-in graphic equalizer (7-band)
·Supports digital output (standard format or IIS format)
·Provides 1-Poly mode for low power consumption

BU8709KN is a melody sound source LSI for cellular phones. This LSI generates 64 high quality polyphonic tones through high sampling rate (fs=44.1KHz).

1 ADPCM encoder and 2 ADPCM decoders functions are embedded, BU8709KN is providing mixing capabilities. It can customize output sounds by an equalizer function and display the signals by Graphic Equalizer. It also has Reverb function, as well as LED & Vib synchronization.