#Outline
The Y M U 757 is a high quality melody LSI for cellular phone handsets, supporting the data format for various applications including ringing and holding melody sounds. The built-in Yamaha's original FM syn thesizer can create various timbres, and its built-in sequencer can produce up to 4 different sounds with 4 different timbres simultaneously without placing a load to the controller. The serial port controller interface enables real time reproduction of the melody data via FIFO , without the limitation of the data capacity.

FEATUREs
YAM AHA's original FM sound generator function
Built-in sequencer
C apable of producing up to 4 different sounds simultaneously (4 independent timbres available)
Built-in output 400m W speaker am plifier
Built-in circuit for sound quality correcting equalizer
Built-in serial interface
2.688, 8.4, 12.6, 14.4, 19.2, 19.68, 19.8 and 27.82 MHz serial clock inputs support
Analog output for ear phone.
Pow er dow n m ode (Typ 1µA or less)
Pow er supply voltage (Digital and Analog) : 3.0V ±10 %
20-pin TSSO P