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參數(shù)資料
| 型號： | ISD1800 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | SINGLE-CHIP, SINGLE-MESSAGE VOICE RECORD/PLAYBACK DEVICE 6- TO 16-SECOND DURATION |
| 中文描述： | 單芯片，單個消息語音錄音/播放設備6 -至16秒時間間隔 |
| 文件頁數(shù)： | 7/26頁 |
| 文件大?。?/td> | 709K |
| 代理商： | ISD1800 |
I1800 SERIES
PIN NAME
PIN NO.
I/O
FUNCTION
MIC
10
I
Microphone Input
: The microphone input
transfers its signals to the on-chip preamplifier. An
on-chip Automatic Gain Control (AGC) circuit
controls the gain of the preamplifier. An external
microphone should be AC coupled to this pin via
a series capacitor. The capacitor value, together
with an internal 10 K
resistance on this pin,
determines the low-frequency cutoff for the I1800
passband.
MIC REF
12
I
Microphone Reference
: The MIC REF input is
the inverting input to the microphone preamplifier.
This
provides
input
common-mode rejection, when the microphone is
connected differentially to the device.
noise-cancellation,
or
AGC
13
I
Automatic Gain Control
: The AGC dynamically
adjusts the gain of the preamplifier to compensate
for the wide range of microphone input levels. The
AGC allows the full range of sound, from whispers
to loud sounds, to be recorded with minimal
distortion. Nominal values of 4.7 μF give
satisfactory results in most cases.
SP-/SP+
15, 17
O
Speaker Outputs
: The SP+ and SP- pins provide
direct drive for loudspeakers with impedances as
low as 8
. A single output may be used, but, for
direct-drive loud-speakers, the two opposite-
polarity outputs provide an improvement in output
power of up to four times over a single-ended
connection. Furthermore, when SP+ and SP- are
used, a speaker coupling capacitor is not
required. A single-ended connection will require
an AC-coupling capacitor between the SP pin and
the speaker.
The SP+ pin and the SP- pin are internally
connected through a 50 K
resistance. When not
in playback mode, they are floating.
V
CCA
, V
CCD
18, 27
Voltage Supplies
: Analog and digital circuits
internal to the I1800 device use separate power
buses to minimize noise on the chip. These power
buses are brought out to separate pins on the
package and should be tied together as close to
the power supply as possible. It is important that
the power supply be decoupled as close as
possible to the package.
Publication Release Date: May 2003
- 7 -
Revision 0.0
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ISD1806SY | 功能描述:IC VOICE REC/PLAY 6SEC 28-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 語音錄制和重放 系列:ISD1800 標準包裝:14 系列:- 接口:串行 濾波器通頻帶:1.7kHz 持續(xù)時間:8 ~ 32 秒 安裝類型:通孔 封裝/外殼:28-DIP（0.300"，7.62mm） 供應商設備封裝:28-PDIP 其它名稱:90-21300+000 |
| ISD1806X | 制造商:Nuvoton Technology Corp 功能描述:IC VOICE REC/PLAY 6SEC DIE |
| ISD1810 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| ISD1810P | 制造商:WINBOND 制造商全稱:Winbond 功能描述:Single-Chip, Single-Message Voice Record/Playback Device 8- to 16-Second Durations |
| ISD1810SERIES | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Chip. Single-Message Voice Record/Playback Device |
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