U4221B Datasheet, PDF (7/12 Pages) TEMIC Semiconductors – Radio Controlled Clock Receiver

Application Circuit for DCF 77.5 kHz
+V _CC
U4221B
CONTROL LINES
Ferrite Antenna
220 nF
47 nF
77.5 kHz
1
16
2
15
3
14
4
13
U 4221 B
5
12
6
11
7
10
8
9
PON
TCO
MICROCOMPUTER
KEYBOARD
DISPLAY
93 7504 e
Application Circuit for WWVB 60 kHz
+V _CC
CONTROL LINES
Ferrite Antenna
220 nF
47 nF
60 kHz
1
16
2
15
3
14
4
13
U 4221 B
5
12
6
11
7
10
8
9
PON
TCO
MICROCOMPUTER
KEYBOARD
DISPLAY
94 7906 e
TELEFUNKEN Semiconductors
7 (12)
Rev. A1, 15-May-96
Preliminary Information