MSS0271 查看數據表（PDF） - Mosel Vitelic, Corp
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MSS0271 Datasheet PDF : 12 Pages
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MOSEL VITELIC INC.
Preliminary
MSS0271
Choice of sample rate
The sample rate should be chosen before chip
manufactured. Two sample rates are provided on
S0271 - either 6200 KHz or 8400 KHz. User is able
to select them on the attached PRF (product request
form).
Rosc
No external Rosc is required.
Audio band amplifier transistor
No amplifier transistor is demanded.
PCB layout
To minimize the interference, the route from trigger
switch to chip should be as short as possible. The
route of trigger signal is recommended to as far away
as possible to speaker output.
CDS as trigger
to be defined.
Power On play
This chip provides power on play function. User
should be noted that the time parameter T PUD is
zero. To connect the trigger to Vdd, the sound will
be played whenever power is turned on.
Cascading
Cascading chips to have longer duration is possible by
special wiring but not recommended.
Paralleling
Paralleling chips to have more triggers is possible by
special wiring but not recommended.
Bulk Capacitor
A bulk capacitor 0.1uF across the Vdd to Vss is
demanded when using 4.5V (or higher) working voltage.
At every working voltage, the value of bulk capacitor
should be less than or equal to 0.47uF.
Bonding change while Rosc shifts
MVI S0271 provides reliable built-in Rosc by advance
technology. In case Rosc is shilfted (pitch shifted), the
bonding change is able to bias Rosc into nominal value.
The bonding changes are described on page 11/12.
While the pitch shift encountered even it is rarely, the
part number will have a postfix letter-capital "Z" while
the lot number will have the two letter extension
simultaneously. The two-letter extension could be "LH",
"HL" or "HH". This two-letter extension tells how the
bonding should be done which are described on page
11/12.
Standard Code Line Up
Times to Times to
Code# Title
Repeat Play Trigger
LB
1 002 Ho,Ho,Ho, Merry X'mas!! 0
1 Edge Unhold Irret. Busy
2 010 Happy Hollween!!
1
2 Edge Unhold Irret. Busy
3 017 Barking Dog
2
3 Edge Unhold Irret. Busy
4 018 Screaming Girl
0
1 Edge Unhold Irret. 6 Hz LED
5 020 Croaking Frog
2
3 Edge Unhold Irret. 3 Hz LED
6 021 Sound of Cow
1
2 Level Unhold Irret. 3 Hz LED
SR
Deb. (Hz)
Fast 6.2 K
Fast 6.2 K
Fast 8.4 K
Fast 8.4 K
Slow 6.2 K
Slow 6.2 K
Remarks
Specifications subject to change without notice, contact your sales representatives for the most recent information.
5/12
PID257*** 05/97
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