BU8763FV Datasheet, PDF (1/12 Pages) Rohm – Melody LSI for Cellular Phone

Communications
Melody LSI for Cellular Phone
BU8763FV
BU8763FV
BU8763FV is a melody LSI for cellular phones that can produce triple chords simultaneously.
Tone and volume in each sound source can be controlled separately by serial control. Master volume is integrated.
Master clock can be selected from 5.376MHz or 2.688MHz. Output can be changed sine wave or special square wave.
The special square wave is a waveform that can take sound pressure by even a small speaker.
!Applications
Melody sound at receiving or holding a call
!Features
1) Generating 3 waves, Controlled by CPU
2) Selectable master clock (5.376MHz / 2.688MHz)
3) Changeable parameter for wave generate
4) Including DTMF create function
5) Changeable Sine wave or special square wave
6) Serial control from CPU
7) Include smoothing filter (fc=20KHz)
8) SSOP-B16 package
!Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Digital supply voltage
DVDD
−0.3 to +4.5
V
Analog supply voltage
AVDD
−0.3 to +4.5
V
Input voltage for digital
VDIN
DVSS−0.3 to DVDD+0.3
V
Input voltage for analog
Power dissipation
VAIN
AVSS−0.3 to AVDD+0.3
V
Pd
450^∗
mW
Storage temperature range
Tstg
−50 to +125
°C
Operating temperature range
Topr
−20 to +70
°C
∗ To use at temperature higher than 25 C, derate 4mW / C, PCB(70mm⁺ 70mm, d=1.6mm glass epoxy)
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