TONE RINGER WITH DRIDGE DIODE
S1T
2418G01/D02
INTRODUCTION
The S1T2418G01/D02 is a monolithic integrated circuit telephone
tone ringer with bridge diode. When coupled with an appropriate
transducer, it replaces the electro-mechanical bell.
This device is designed for use with either a piezo transducer or an
inexpensive transformer-coupled speaker to produce a pleasing tone
composed of high frequencies (f
H1
, f
H2
) alternating with
a
low
frequency (f
S
) 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
cannot affect correct operation of the device.
8鈭扗IP鈭?00
FEATURES
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Built-in full wave bridge diode rectifier
Low current consumption, in order to allow the parallel operation of 4 devices
Few external components
Tone and adjustable switching frequencies by external components
High noise immunity to current hysteresis due to built-in voltage
Adjustable activation voltage
Internal zener diodes to protect against over-voltages
Adjustable ringer impedance with external components
APPLICATIONS
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Electronic telephone ringers
Extension ringers
ORDERING INFORMATION
Device
S1T2418G01-D0B0
S1T2418D02-D0B0
Package
8鈭扗IP鈭?00
Operating Temperature
鈭?0擄C
to +70擄C
1
S1T2418G01相關(guān)型號PDF文件下載
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