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參數(shù)資料
| 型號： | U2781B |
| 英文描述： | Frequency Synthesizer |
| 中文描述： | 頻率合成器 |
| 文件頁數(shù)： | 6/10頁 |
| 文件大小： | 204K |
| 代理商： | U2781B |
U2781B
TELEFUNKEN Semiconductors
Rev. A3, 26-Nov-97
6 (10)
Pulse Diagram Phase and Lock Detector
93 7786 e
fp (fvco/Tp)
fr (fosc/Tp)
Vcp
LD
Figure 4.
The LD output is in unlocked condition at low level and the pulsewidth is in reference to the phase respectively fre-
quency difference at the phase detector. If the phase detector output pulses are smaller than 100 ns, the LD output goes
high and indicates “l(fā)ock” condition.
Test Circuit
Input sensitivity
94 8904
Monitor
Frequency
Counter
RF Test
Generator
Data
Clock
Enable
10 k
U2781B
1n
10 n
1
V
S
= 3 V
Figure 5.
相關PDF資料 |
PDF描述 |
|---|---|
| U2782B | Ring Tongue Solderless Terminal; RoHS Compliant: Yes |
| U2782B-AFS | Ring Tongue Solderless Terminal; Wire Size (AWG):6; Stud Size:#10 RoHS Compliant: Yes |
| U2782B-AFSG3 | 1100 MHz Twin PLL |
| U2794 | 1000 MHz Quadrature Demodulator |
| U2794B | 1000 MHz Quadrature Demodulator |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| U2781B-AFS | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Frequency Synthesizer |
| U2781B-AFSG3 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Frequency Synthesizer |
| U2782B | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:1100 MHz Twin PLL |
| U2782B-AFS | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:1100 MHz Twin PLL |
| U2782B-AFSG3 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:1100 MHz Twin PLL |
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