U4224B-CFL 데이터 시트보기 (PDF) - Temic Semiconductors
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U4224B-CFL Datasheet PDF : 17 Pages
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Application Circuit for DCF 77.5 kHz
+ VCC
U4224B
CONTROL LINES
Ferrite Antenna
fres = 77.5 kHz
77.5 kHz 2)
C1
6.8 nF
1
2
3
4
U4224B
5
6
7
8
16
15
14
77.5 kHz
13
TCO
PON 3) MICROCOMPUTER
SL 1)
KEYBOARD
12
11
C3
DISPLAY
10 10 nF
9
C2
1) If SL is not used, SL is connected to VCC
2) 77.5 kHz crystal can be replaced by 10 pF
3) If IC is activated, PON is connected to GND
33 nF
94 8279 e
Application Circuit for WWVB 60 kHz
+ VCC
CONTROL LINES
Ferrite Antenna
fres = 60 kHz
RSB
10 kW
60 kHz 2)
C1
15 nF
1
2
3
4
U4224B
5
6
7
8
16
15
14
60 kHz
13
TCO
PON 3) MICROCOMPUTER
SL 1)
KEYBOARD
12
11
C3
DISPLAY
10 10 nF
9
C2
1) If SL is not used, SL is connected to VCC
2) 60 kHz crystal can be replaced by 10 pF
3) If IC is activated, PON is connected to GND
47 nF
94 8278 e
TELEFUNKEN Semiconductors
Rev. A3, 02-Apr-96
9 (17)
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