鈥?/div>
On-chip envelope modulator and pre-amplifier
General Description
The M3481 series is a mask-ROM-programmed multi-instrument melody generator , implemented by
CMOS technology. It is designed to play the melody according to the previously programmed
information
and is capable of generating 16 songs with 3 instrument effects : piano, organ and mandolin. The
device
also includes a pre-amplifier which provides a simple interface to the driver circuit. The M3481 series is
intended for applications such as toys, door bells, music box, melody clock/timers and telephones.
Absolute Maximum Ratings
DC Supply Voltage .......................................... -0.3V to +5.0V
Input Voltage Range ....................................... Vss-0.3V to Vdd+0.3V
Operating Ambient Temperature .................... 0擄C to +70擄C
Storage Temperature ....................................... -10擄C to +125擄C
Electrical Characteristics
(Vss=0V, Vdd=1.5V, Ta=25擄C, unless otherwise specified.)
Parameter
Symbol
Min.
Typ.
Operating Voltage
Vdd
1.3V
1.5V
Stand-by Current
Isb
-
-
Input Voltage High
Vih
Vdd-0.3V
-
Input Voltage Low
Vil
Vss
-
Input Current High
Iih
1.5碌A(chǔ)
3碌A(chǔ)
Input Current Low
Iil
-
-
ENV Pin Drive Current
Ienv
-
500碌A(chǔ)
Output Current (OP1)
Iol
-
200碌A(chǔ)
Output Current (OP2)
Ioh
-
200碌A(chǔ)
Max.
5V
12碌A(chǔ)
Vdd
Vss+0.3V
6碌A(chǔ)
0.1碌A(chǔ)
-
1200碌A(chǔ)
1200碌A(chǔ)
Conditions
No load
Vih=Vdd
Vil =Vss
Venv=0.8V
Vol=0.8V
Voh=0.7V
Playing modes
Program
Mode
CE
SL LP
AS
0
0
X
X
X
Standby
1
1
0
0
0
First melody鈫?..鈫扡ast melody鈫扴top
2
0
0
1
鈫?/div>
First melody鈫?..鈫扡ast melody鈫扲epeat from first melody
3
0
1
0
鈫?/div>
Start from the present melody鈫扴top
4
1
0
1
1
Repeat the present melody
5
1
0
0
鈫?/div>
Change to the next melody鈫?..鈫扡ast melody鈫扴top
6
1
0
1
鈫?/div>
Next melody鈫?..鈫扡ast melody鈫扲epeat from first melody
7
1
1
0
鈫?/div>
Change to the next melody鈫扴top
8
1
1
1
鈫?/div>
Change to the next melody鈫扲epeat the same melody
(
鈫?/div>
means a low to high voltage level transaction )
1
M3481相關(guān)型號PDF文件下載
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廠商
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英文版
UM348x Multi-Instrument Melody Generator
ETC
-
英文版
UM348x Multi-Instrument Melody Generator
ETC [ETC]
-
英文版
UM348x Multi-Instrument Melody Generator
ETC
-
英文版
UM348x Multi-Instrument Melody Generator
ETC [ETC]
-
英文版
UM348x Multi-Instrument Melody Generator
ETC
-
英文版
UM348x Multi-Instrument Melody Generator
ETC [ETC]
-
英文版
256 x 256 DIGITAL SWITCHING MATRIX
-
英文版
256 x 256 DIGITAL SWITCHING MATRIX
STMICROELECTRON...
-
英文版
UM348x Multi-Instrument Melody Generator
ETC
-
英文版
UM348x Multi-Instrument Melody Generator
ETC [ETC]
-
英文版
256 x 256 DIGITAL SWITCHING MATRIX
-
英文版
256 x 256 DIGITAL SWITCHING MATRIX
STMICROELECTRON...
-
英文版
256 x 256 DIGITAL SWITCHING MATRIX
-
英文版
256 x 256 DIGITAL SWITCHING MATRIX
STMICROELECTRON...
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