- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄372396 > SY15-S3 Telecomm/Datacomm PDF資料下載
參數(shù)資料
| 型號： | SY15-S3 |
| 元件分類： | 通信、網(wǎng)絡(luò)模塊及開發(fā)工具 |
| 英文描述： | Telecomm/Datacomm |
| 中文描述： | 電信/數(shù)據(jù)通信 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 169K |
| 代理商： | SY15-S3 |
SYNCHRONOUS EQUIPMENT
STRATUM 3 CLOCK UNIT WITH HF OUTPUTS – SY15-S3
Locked to EX REF.1
In this mode the output of the module is phase locked to input reference 1.
Locked to EX REF.2
In this mode the output of the module is phase locked to input reference 2.
Locked to EX REF.3
In this mode the output of the module is phase locked to input reference 3.
Locked to EX REF.4
In this mode the output of the module is phase locked to input reference 4.
Locked to EX REF.5
In this mode the output of the module is phase locked to input reference 5.
The EX REF1 to EX REF5 Modes are typically used when a slave clock source is synchronized to the network. In
these modes, the SY15-S3 provides timing signals, which are synchronized, to one of five references inputs (EX
REF1 or EX REF5). The input reference signals may have a variety of nominal frequencies, which is typically
specified by the end user. When the modes are selected the unit goes through a reference evaluation, and then a
frequency acquisition, and finally to phase locking.
Local Reference Oscillator
Depending on the type of clock, a local reference oscillator is selected. For example: for a Stratum 3 type of clock,
the local oscillator can be an AT-cut OCXO or in some cases a good TCXO that meets this standard requirements
for frequency drift and jitter noise. For other standards please contact the factory.
Control
The external control is available for the user to control the operation of the SY15-S3. The three external inputs
CNT1, CNT2 and CNT3 provide this feature. Below, the truth table shows behavior of the SY15-S3 module
according to the control inputs states.
CNT3
CNT2
CNT1
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
Input References
The SY15-S3 module accepts five input references EX REF1 to EX REF5. End users can specify the frequencies
within a range of 8 kHz to 77.76 MHz. The input reference signals are HCMOS/TTL levels with timing characteristic
in according to Bellcore GR-1244-core 3.2.1.R3-1 or equivalent standards. Please note that the end user must
specify the input frequencies at the time of order.
Output Signals
The SY15-S3 module provides three high frequency output signals OUT1, OUT2 and OUT3. The outputs are
generated by the high quality low jitter VCXO and scaled by the output frequency converters. The quality of the
output significantly depends on the VCXO oscillator and special care was taken to define its specification. The
OUT1 and OUT2 are buffered from VCXO output while the OUT3 is derived by dividing the output frequency of the
RALTRON ELECTRONICS CORP.
!
10651 N.W.19
th
St
!
Florida 33172
!
U.S.A.
Tel: 305 593-6033
!
Fax: 305-594-3973
!
e-mail: sales@raltron.com
!
Internet: http://www.raltron.com
MODE OF OPERATION
Free-run
Locked to EX REF1
Locked to EX REF2
Locked to EX REF3
Locked to EX REF4
Locked to EX REF5
Ignored
Holdover
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SY30PT | PHOTOTRANSISTOR | NPN | 880NM PEAK WAVELENGTH | 10M | LED-2A |
| SY48PT | PHOTOTRANSISTOR | NPN | 880NM PEAK WAVELENGTH | 15M | TO-18 |
| SY508 | |
| SY510 | |
| SY509 | |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SY15TF | 制造商:UNBRANDED 功能描述:BEARING PILLOW BLOCK |
| SY16-3 | 制造商:Molex 功能描述: 制造商:Molex 功能描述:#16-3 YELLOW SOOW CORD BOXEDIN250COILS( |
| SY16-4 | 制造商:Molex 功能描述:#16-4 YELLOW SOW-A/SOW CORD BOXEDIN250C |
| SY16K | 制造商:American Power Conversion Corp (APC by Schneider Electric) 功能描述:UPS; 16000 VA; 208 V (Nom.); 120/208 V (Nom.); Hard Wire 3 wire 制造商:Schneider Electric 功能描述:APC SYMMETRA 16KVA SCALABLE - Bulk |
| SY16K48H-PD | 制造商:American Power Conversion Corp (APC by Schneider Electric) 功能描述:APC SYMMETRA PX 16KW ALL-IN-ON 制造商:Schneider Electric 功能描述:APC SYMMETRA PX 16KW ALL-IN-ONE, SCALABLE TO 48KW, 400V - Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。