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MOSDESIGN SEMICONDUCTOR CORP.
SPEAKER DRIVER 1 KEY 768 NOTES
FEATURES
• Up to 24 tunes. • 1 sequence trigger key.
768 24
TAIPEI : TEL : 886-2- 22783733 FAX : 886-2- 22783633
H.K. : TEL : 852- 27569109 FAX : 852- 27566961
MELODY
M908
.. ..
..
TG
BZ T1
T2 T3
T4 5 6…
APPLICATION
• Toys, Clock melody etc..
ELECTRICAL CHARACTERISTICS
Characteristics Operating Voltage Operating Current Quiescent Current BZ Driving Current Oscillator Frequency Operating Temperature
Sym. VDD IOP ISB IO FOSC Temp.
Min. ─ ─ ─ 1 ─ 0
Typ. 3 0.1 1 ─
100 25
APPLICATION DIAGRAM
Max. 3.5
0.5 5 ─ ─ 60
( @VDD=3V unless otherwise specified ) Unit REMARKS
V
mA No load μA mA @ VDS=1V KHz External±30%, Rosc=270KΩ ℃
VSS
X Rosc Y
VDD
BZ VDD
M908
1.17 x 1.