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L3240 数据表(PDF) 3 Page - STMicroelectronics

部件名 L3240
功能描述  ELETRONIC TWO-TONE RINGER
PDF  6 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L3240 数据表(HTML) 3 Page - STMicroelectronics

  L3240 Datasheet HTML 1Page - STMicroelectronics L3240 Datasheet HTML 2Page - STMicroelectronics L3240 Datasheet HTML 3Page - STMicroelectronics L3240 Datasheet HTML 4Page - STMicroelectronics L3240 Datasheet HTML 5Page - STMicroelectronics L3240 Datasheet HTML 6Page - STMicroelectronics  
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Figure 1 : Test Circuit.
Figure 2 : Typical Application with Balanced
Output.
Figure 3 : Application Compatible with LS1240
(single ended output).
Figure 4 :F1 Out vs. R1.
3.56 x 10
4
F1
R1
x
(1 – 0.12 x ln
)
F1 (HZ)
2543
f2 = 0.725 f1
750
fSWEEP =
C1 (nF)
ELECTRICAL CHARACTERISTICS
(Tamb =25
oC; VS = applied between pins 7-2 ;otherwise specified)
AC OPERATION
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Output Frequencies
Fout 1
Fout 2
Vs =26 V, R1 =14 K
Vs =0 V
Vs =6 V
2,29
1.6
2,8
2.1
kHz
Fout 1
Fout 2
1.33
1.43
Programming Resistor Range
8
56
k
Sweep Frequency
R1 = 14k
Ω, C1 =100nF
5.25
7,5
9.75
Hz
L3240
3/6



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