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參數(shù)資料
| 型號(hào)： | S1D2514X01 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | SDR Cable Assembly; Connector Type A:micro D Ribbon Plug; Connector Type B:micro D Ribbon Plug; Cable Length:2m; No. of Contacts:26; Pitch Spacing:0.8mm RoHS Compliant: Yes |
| 中文描述： | S1D2514X01 - D0B0 |
| 文件頁數(shù)： | 42/54頁 |
| 文件大?。?/td> | 549K |
| 代理商： | S1D2514X01 |
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VIDEO AMP MERGED OSD PROCESSOR FOR MONITORS
S1D2514X01
41
Preliminary
PLL CONTROL
Introduction
PLL (Phase Lock Loop) is feedback controlled circuit that maintains a constant phase difference between a
reference signal and an oscillator output signal.
Generally, PLL is composed as follow Figure.
- PFD (Phase Frequency Detector)
PFD compares the phase of the VCO output frequency, with the phase of a reference signal frequency output
pulse is generated in proportion to that phase difference.
- LF (Loop Filter)
LF smooths the output pulse of the phase detector and the resulting DC component is the VCO input.
- VCO (Voltage Controlled Oscillator)
VCO is controlled by loop filter output. The output of the VCO is fed back to the phase frequency detector
input for comparison which in turn controls the VCO oscillating frequency to minimize the phase difference.
- FD (Frequency Divider)
FD divides too much different frequency that is oscillated from the VCO to compare it with reference signal
frequency.
Figure 17. Block Diagram of General PLL
PFD
(Phase Frequency Detector)
LF
(Loop Filter)
VCO (Voltage
Controlled Oscillator)
FD
(Frequency Detector)
Reference Signal
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S1D2518X01 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:I2C BUS CONTROLLED R/G/B VIDEO AMPLIFIER |
| S-1-D-2-D | 制造商:Interconnect Devices Inc (IDI) 功能描述:SPRING CONTACT PROBE |
| S-1-D-2-D D/C .670 OAL | 功能描述:觸點(diǎn)探頭 HEADED RADIUS RoHS:否 制造商:IDI 類型:Probes 尖端類型:Spherical Radius 長度:8.26 mm 電流額定值:10 A 彈力:2.3 oz 行程:1.52 mm 系列:101050 |
| S-1-D-2-G | 制造商:Interconnect Devices Inc (IDI) 功能描述:connectors |
| S-1-D-2-G D/C .670 OAL | 功能描述:觸點(diǎn)探頭 HEADED RADIUS RoHS:否 制造商:IDI 類型:Probes 尖端類型:Spherical Radius 長度:8.26 mm 電流額定值:10 A 彈力:2.3 oz 行程:1.52 mm 系列:101050 |
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