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參數(shù)資料
| 型號： | VCT1000B |
| 廠商： | CTS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Dual Input Timing Module |
| 中文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, DMA18 |
| 封裝： | 50.80 X 50.80 MM, 16.51 MM HEIGHT, DIP-18 |
| 文件頁數(shù)： | 8/8頁 |
| 文件大?。?/td> | 136K |
| 代理商： | VCT1000B |
Stratum III Timing Module : VCT1000B
Application: Dual Input Timing Module
Page 8 of 8
Rev. “5” 1/20/04
VCT1000B Pin Functions
Pin #
1
2
3
4
6
ALARM OUT
Name
HOLDOVER
REF 1
REF 2
FREERUN
Description
Holdover Signal -> the output is high when the unit is in holdover mode
Reference 1 Signal -> the output is high when the unit is using the reference 1
Reference 2 Signal -> the output is high when the unit is using the reference 2
Free-run Signal -> the output is high when the unit is in the free run mode
Alarm signal -> the output is high when there is an alarm in the module, alarm
condition is during free-run mode, holdover mode,
Control Input 1 -> the external input for selecting mode of the unit – see table.
Control Input 2 -> the external input for selecting mode of the unit – see table.
PLL Unlocked Signal -> the output is high when the unit is not locked to any of the
references
Ground
7
8
9
CNTL A
CNTL B
PLL UNLOCK
5,10,12,
14,16
18
11
13
GND
+5V
OUT
OPT OUT
Positive Voltage Supply
Synchronized Output -> the output of the synchronized signal
Optional Output -> the secondary output of the synchronized signal, Pre-defined as
OUT/N where N is a integer
External Reference 1 Input -> the input signal from reference 1
External Reference 2 Input -> the input signal from reference 2
17
15
Control Functions
CNTL B
0
0
1
1
4.0
STANDARD ENVIRONMENTAL LIMITS
This product is capable of operating within the following environmental conditions:
4.1 Operating Temperature
4.2 Storage Temperature
4.3 Humidity (non- Condensing)
4.4 Atmospheric Pressure
4.5 Vibration
4.6 Shock
5.0
MAXIMUM SOLDERING PROFILE
Temperature
110 to150
°
C
>183
°
C
Time
6min
2.5min
EX REF 1
EX REF 2
CNTL A
0
1
0
1
MODE OF OPERATION
Free-run
Locked to REF1
Locked to REF2
Holdover
0 to +70
°
C.
-40 to +85
°
C.
95% Relative humidity max @ 40
°
C.
730 to 780 mm Hg.
10 to 60 Hz with double amplitude of
1.52mm max.
(1/2 hour in each of 3 perpendicular planes).
1/2 sine pulse, 7000G, with pulse width
0.3mSec.
(1 shock in each of 6 directions of 3
perpendicular planes).
>235
°
C
0.25min
240
°
C
Max temperature
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