U4224B Datasheet, PDF (9/17 Pages) TEMIC Semiconductors – Time Code Receiver

Application Circuit for DCF 77.5 kHz
+ V_CC
U4224B
CONTROL LINES
Ferrite Antenna
f_res = 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
+ V_CC
CONTROL LINES
Ferrite Antenna
f_res = 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)