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參數(shù)資料
| 型號(hào)： | IL2418N |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Telephone Tone Ringer with Bridge Diode |
| 中文描述： | 電話鈴聲鈴聲與橋二極管 |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大小： | 48K |
| 代理商： | IL2418N |
TECHNICAL DATA
1
Telephone Tone Ringer with
Bridge Diode
The IL2418 is a monolithic integrated circuit telephone tone ringer with
bridge diode, when coupled with an appropriate transducer, it replaces
the electro-mechanical bell. The device is designed for use with either
a piezo transducer or an inexpensive transformer coupled speaker to
produce a pleasing tone composed of a high frequency (f
R
) alternating
with a low frequency (f
L
) resulting in a warble frequency. The supply
voltage is obtained from the AC ring signal and the circuit is designed
so that noise on the line or variation of the ringing signal can not
affect correct operation of the device.
On chip high voltage full wave diode bridge rectifier
Low current consumption, in order to allow the parallel operation
of the 4 devices
Low external component count
Tone and switching frequencies adjustable by external
components
High noise immunity due to built-in voltage-current hysteresis
Activation voltage adjustable
Internal zener diodes to protect against over voltages
Ringer impedance adjustable with external components
IL2418
ORDERING INFORMATION
IL2418N Plastic
T
A
= -20
°
to 70
°
C
for package
PIN ASSIGNMENT
BLOCK DIAGRAM
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