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參數(shù)資料
| 型號(hào)： | U4222B |
| 英文描述： | Radio Controlled Clock Receiver |
| 中文描述： | 電波鐘接收器 |
| 文件頁數(shù)： | 7/9頁 |
| 文件大?。?/td> | 98K |
| 代理商： | U4222B |
TELEFUNKEN Semiconductors
U4222B
Preliminary Information
Rev. A1: 13.08.1996
7 (9)
Information regarding Japanese Transmitter
Station: JG2AS
Frequency 40 kHz
Transmitting power 10 kW
Location: Sanwa, Ibaraki
Geographical coordinates: 36 11’ N, 139 51’ E
Time of transmission: permanent
0
5
10
20
30
40
55
0
5
35
45
sec.
40 20 10
8
4
2
1
P1
0
1
2
3
5
4
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20
hours
P2
20 10
8
4
2
1
Time Frame
15
minutes
0.5 s
0.8 s
0.2 s
”1”
”0”
”P”
0.5 second: Binary one
0.8 second: Binary zero
0.2 second: Identifier markers P0...P5
93 7508 e
25
50
10
P
F
4
2
1
8
4
2
1
P
1
2
8
4
2
1
P
2
1
8
4
2
1
P
8
4
2
1
A
S
A
P
8
2
1
4
P
P
minutes
hours
days
P0
frame reference marker (FRM)
position identifier marker P0
position identifier marker P1
Example: 18.42 h
Time Frame 1 Minute
(index count 1 second)
Time Frame
dut1
code
59
Figure 7.
Modulation
The carrier amplitude is 100% at the beginning of each
second and is reduced after 500 ms (binary one) or after
800 ms (binary zero).
Time Code Format
It consists of one minute time frame. A time frame
contains BCD–coded information of minutes, hours and
days. In addition there are 6 position identifier markers
(P0 thruP5) and one frame reference markers (FRM) with
reduced carrier amplitude of 800 ms duration.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| U4222B-CFP | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Radio Controlled Clock Receiver |
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| U4223B | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Time-Code Receiver with A/D Converter |
| U4223B-BFL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC |
| U4223B-BFS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC |
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