參數(shù)資料
型號(hào): TRU050-TELHA32.000-1.000
廠商: VECTRON INTERNATIONAL
元件分類: PLL合成/DDS/VCOs
英文描述: PHASE LOCKED LOOP, CDIP16
封裝: HERMETIC SEALED, CERAMIC, DIP-16
文件頁數(shù): 13/17頁
文件大?。?/td> 627K
代理商: TRU050-TELHA32.000-1.000
Vectron International 166 Glover Avenue, Norwalk, CT 06856-5160 Tel: 1-88-VECTRON-1 e-mail: vectron@vectron.com
The falling edge of RCLK is coincident with
the center of the regenerated NRZ RDATA
pulse. Figure 6 shows a 1010 data stream
with a 100% data transition density. In
general, this will not be the case and input
data will have fewer data transitions.
However, the phase detector will still seek
to align the falling edge of the RCLK signal with the center of each RDATA pulse.
For applications where the input clock or data signal, DATAIN, is very low in frequency (<200kHz), clock
information may pass through the phase detector because of its finite low pass characteristic. In applications
such as this, an additional pole may be necessary in the loop filter to attenuate these AC components prior to
the VCXO input. Please contact Vectron’s Applications Engineering staff for further detail.
Figure 5.
Figure 7.
Figure 6.
Figure 8.
5 of 17
How is it
manufactured?
The TRU-050 is
assembled in
“state of the art”
class 100 and class
10,000 clean
rooms using leading
edge, high volume
automation equip-
ment and advanced
ASIC technology.
Phase Detector Gain Calculation
The schematic diagram (figure 7) shows a simplified representation of the phase detector's basic error generation function. The actual circuit is more complex and includes
circuitry to reduce the TRU-050's dependence on input data duty-cycle. In general, the TRU-050 is insensitive to duty cycle and duty cycle changes. This circuit provides a
output (VD) DC level which is proportional to the relative phase of DATAIN (Pin 7) and CLKIN (Pin 9). A plot of the output (VD) versus relative phase is shown in figure
8. The slope of the output (VD ) versus relative phase (0e) is 5V/2π.
The phase detector block also includes an output gain stage which should be considered when calculating the gain of the complete phase detector block. This gain stage
has a gain of 2/3, and converts the differential signal to a single-ended DC output.
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參數(shù)描述
TRU050-TELHA-65M0000000 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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TRU050-TELNA-1M0000000 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Complete VCXO based Phase-Locked Loop
TRU050-TELNA-65M0000000 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Complete VCXO based Phase-Locked Loop