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參數(shù)資料
| 型號： | ISD MicroTAD-16M |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | Single-Chip Voice Record/Playback Device（Single-chip Durations of 16 minutes)(單片的錄音/錄音重放器(單片信息存儲持續(xù)時間16分鐘）) |
| 中文描述： | 單芯片語音記錄/播放設(shè)備（單芯片的持續(xù)時間16分鐘）（單片的錄音/錄音重放器（單片信息存儲持續(xù)時間16分鐘）） |
| 文件頁數(shù)： | 5/28頁 |
| 文件大?。?/td> | 650K |
| 代理商： | ISD MICROTAD-16M |
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ISD MicroTAD-16M
1
ISD
DETAILED DESCRIPTION
SPEECH/SOUND QUALITY
The ISD MicroTAD-16M ChipCorder is offered at
4.0 KHz sampling frequency.
The speech samples are stored directly into on-
chip nonvolatile memory without the digitization
and compression associated with other solu-
tions. Direct analog storage provides a natural
sounding reproduction of voice, music, tones,
and sound effects not available with most solid-
state solutions.
FLASH STORAGE
One of the benefits of ISD’s ChipCorder technolo-
gy is the use of on-chip nonvolatile memory, which
provides zero-power message storage. The mes-
sage is retained for up to 100 years (typically)
without power. In addition, the device can be
re-recorded (typically) over 100,000 times.
MICROCONTROLLER INTERFACE
A four-wire (SCLK, MOSI, MISO, SS) SPI interface is
provided for ISD MicroTAD-16M control and ad-
dressing functions. The ISD MicroTAD-16M is con-
figured to operate as a peripheral slave device,
with a microcontroller-based SPI bus interface.
Read/Write access to all the internal registers oc-
curs through this SPI interface. An interrupt signal
(INT) and internal read-only Status Register are
provided for handshake purposes.
PROGRAMMING
The ISD MicroTAD-16M is also ideal for playback-
only applications, where single or multiple mes-
sage Playback is controlled through the SPI port.
Once the desired message configuration is creat-
ed, duplicates can easily be generated via an
ISD programmer or a 3rd party programmer.
PIN DESCRIPTIONS
VOLTAGE INPUTS (V
CCA
, V
CCD
)
To minimize noise, the analog and digital circuits
in the ISD MicroTAD-16M device use separate pow-
er busses. These +3 V busses are brought out to
separate pins and should be tied together as
close to the supply as possible. In addition, these
supplies should be decoupled as close to the
package as possible.
GROUND INPUTS (V
SSA
, V
SSD
)
The ISD MicroTAD-16M utilizes separate analog
and digital ground busses. The analog ground
(V
SSA
) pins should be tied together as close to
the package as possible and connected
through a low-impedance path to power supply
ground. The digital ground (V
connected through a separate low-impedance
path to power supply ground. These ground
paths should be large enough to ensure that the
impedance between the V
pin is less than 3
. The backside of the die is con-
nected to V
SS
through the substrate resistance.
In a chip-on-board design, the die attach area
must be connected to V
SSD
) pin should be
SSA
pins and the V
SSD
SS
or left floating.
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