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參數(shù)資料
| 型號(hào)： | TRU050-TKLHB-12M0000000 |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | XO, clock |
| 英文描述： | PHASE LOCKED LOOP, CDIP16 |
| 封裝： | ROHS COMPLIANT, HERMETIC SEALED, CERAMIC, SMD-16 |
| 文件頁(yè)數(shù)： | 10/14頁(yè) |
| 文件大?。?/td> | 0K |
| 代理商： | TRU050-TKLHB-12M0000000 |
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TRU050, VCXO Based PLL
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Tel: 1-88-VECTRON-1
Web: www.vectron.com
Page 5 of 14
Rev: 26Aug2008
VDD
0V
0
+π
π
Relative
Phase (
θ
e)
VDD/2
Vd
Gain Slope = VDD/ 2π
Figure 5. Open Loop Phase Detector Transfer Curve
Recovered Clock and Data Alignment Outputs
The TRU050 is designed to recover an imbedded clock from an NRZ data signal and retime it with a data
pattern. In this application, the VCXO frequency is exactly the same frequency as the NRZ data rate and the
outputs are taken off Pin 11, RCLK, and Pin 12, RDATA. Under locked conditions, the falling edge of RCLK is
centered in the RDATA pattern. Also, there is a 1.5 clock cyle delay between DATAIN and RDATA. Figure 6
shows the relationship between the DATAIN, CLKIN, RDATA and RCLK.
Figure 6. Clock and Data Timing Relationships for the NRZ data
Other RZ encoding schemes such as Manchester or AMI can be accomidated by using a TRU050 at twice
the baud rate.
Loss of Signal, LOS and LOSIN
The LOS circuit provides an output alarm flag when the DATAIN input signal is lost. The LOS output is
normally a logic low and is set to a logic high after 256 consecutive clock periods on CLKIN with no detected
DATAIN transitions. This signal can be used to either flag external alarm circuits and/or drive the TRU050’s
LOSIN input. When LOSIN is set to a logic high, the VCXO control voltage (pin 1) is switched to an internal
voltage which centers OUT1 and OUT2 to center frequency +/-75ppm. Also, LOS automatically closes the op
amp feedback which means the op-amp is a unity gain buffer and will produce a DC voltage equal to the +op
amp voltage (pin 4), usually VDD/2.
Clock In
Data In
Recovered
Data
Recovered Clock
Data1
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相關(guān)代理商/技術(shù)參數(shù) |
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| TRU050-TKLHB-1M0000000 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Complete VCXO based Phase-Locked Loop |
| TRU050-TKLHB-65M0000000 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Complete VCXO based Phase-Locked Loop |
| TRU050-TKLNA-1M0000000 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Complete VCXO based Phase-Locked Loop |
| TRU050-TKLNA-65M0000000 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Complete VCXO based Phase-Locked Loop |
| TRU050-TKLNB-1M0000000 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Complete VCXO based Phase-Locked Loop |
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