參數(shù)資料
型號(hào): T4223B-MC
廠商: ATMEL CORP
元件分類: 消費(fèi)家電
英文描述: Time-Code Receiver with A/D Converter
中文描述: SPECIALTY CONSUMER CIRCUIT, UUC22
封裝: DIE-22
文件頁(yè)數(shù): 10/18頁(yè)
文件大?。?/td> 138K
代理商: T4223B-MC
U4223B
Rev. A7, 06-Mar-01
10 (18)
Application Circuit for DCF 77.5 kHz
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
4)
Voltage swing 100 mV
pp
at Pin 12
8
7
+V
CC
Control lines
Display
Keyboard
Microcomputer
PON
3)
Ferrite
Antenna
C
1
6.8 nF
C
3
C
2
33 nF
10 nF
U4223B
D0
D1
D2
D3
SL
1)
CLK
4)
9
1
2
3
4
5
6
16
15
13
12
11
14
10
19
18
17
20
77.5 kHz
2)
10 nF
10 nF
10 nF
10 nF
77.5 kHz
f
res
= 77.5 kHz
Figure 20.
Application Circuit for WWVB 60 kHz
8
7
+V
CC
Control lines
Display
Keyboard
Microcomputer
PON
3)
Ferrite
Antenna
C
1
60 kHz
2)
C
3
C
2
47 nF
10 nF
U4223B
D0
D1
D2
D3
SL
1)
CLK
4)
9
1
2
3
4
5
6
16
15
13
12
11
14
10
19
18
17
20
15 nF
60 kHz
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
4)
Voltage swing 100 mV
pp
at Pin 12
10 nF
10 nF
10 nF
10 nF
f
res
= 60 kHz
10 k
RSB
Figure 21.
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