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参数资料
| 型号： | CME8000-DDTB |
| 厂商： | C-Max |
| 文件页数： | 20/22页 |
| 文件大小： | 0K |
| 描述： | IC RECEIVER RC BICMOS DIE |
| 标准包装： | 1,000 |
| 功能： | 接收器 |
C-MAX Time Solutions
19 Information on the Japanese Transmitter
(Customer is responsible to verify this information)
Data Sheet
CME8000
Station:
Frequency:
Transmitting power:
Station:
Frequency:
Transmitting power:
Ohtakadoya-yama
40 kHz
50 kW
Hagane-yama
60 kHz
50 kW
Location:
Geographical coordinates:
Time of transmission:
Location:
Geographical coordinates:
Time of transmission:
Miyakoji Vil.,Fukushima Pref.
37° 22'N, 140° 51'E
permanent
Fuji Vil., Saga Pref.
33° 28'N, 130° 11'E
permanent
Time frame 1 minute
(Index count 1 second)
Time frame
0
5
10
15
20
25
30
35
40
45
50
55
0
5
10
minutes
hours
days
year
Day
of the
week
Leap second
0.5 second: Binary one
0.5s
0.8s
0.2s
0.8 second: Binary zero
0.2 second: Position identifier markers P0...P5
“1”
CME8000 digital out:
“0”
“P”
FRM =
LS1 =
LS2 =
Frame marker
Leap second
Leap second
P0-P5 =
Position identifier markers
0.5s
“1”
0.8s
“0”
0.2s
“1”
Pa1+Pa2 =
Parity bits
Example of JJY data out:
2004 / 92 days (1st April) / 17 hours / 25 minutes
Protocol Bits
Control Bit
Protocol Identifier
1 2 3 4 5 6
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4
... 0
... 1
minutes
hours
days
year
day
of
Leap second
the
week
Modulation
Time-Code Format
The carrier amplitude is 100% at the beginning of
each second and is switched to 10% after 500 ms
(binary one) or after 800 ms (binary zero) or after
200 ms for Position-identifier marker (P0...P5) and
frame reference marker.
The time-code format consists of 1-minute time
frames. A time frame contains BCD-coded
information of minutes, hours, days, weeks and
year. In addition, there are 6 position-identifier
markers (P0 through P5) with reduced carrier
amplitude of 800 ms duration.
SPEC No.
CME8000
Revision
B.15
State
09.03.07
C-MAX printed
03.05.2007
Version
English
Page
20 of 22
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