- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄367641 > P12611EJ1V0AN00 MCU CMOS 28 LD 20MHZ 8K FLASH, -40C to +85C, 28-SOIC 300mil, TUBE PDF資料下載
參數(shù)資料
| 型號： | P12611EJ1V0AN00 |
| 英文描述： | MCU CMOS 28 LD 20MHZ 8K FLASH, -40C to +85C, 28-SOIC 300mil, TUBE |
| 中文描述： | uPB1509GV 1 GHz的輸入除以2。 4。 8預(yù)分頻器集成電路便攜式無線電系統(tǒng) |
| 文件頁數(shù)： | 18/19頁 |
| 文件大?。?/td> | 110K |
| 代理商： | P12611EJ1V0AN00 |
12
Figure 4-1. Configuration in Prescaler PLL Method
Since P = 2, 4, or 8, the step frequency is 2, 4, or 8 times the phase comparison frequency because the phase
comparison frequency (f
r
) and the step frequency (f
step
) have the relationship: f
step
= P
×
f
r
.
5. CONCLUSION
The above sections described the usage of the
μ
PB1509GV prescaler IC which is applicable for the prescaler
between a local oscillator and a frequency synthesizer in portable radio systems. We believe that it is understood
from this document that this IC provides a flexible design because the interface levels can be adjusted externally.
Reference documents:
μ
PB1509GV Data Sheet (Document number: P10769E)
μ
PB587G Data Sheet (Document number: IC-7566A)
Fundamentals of Frequency Synthesizer Employing PLL (Document number: P12196E)
2-modulus
prescaler
÷ P/ ÷ P+1
Main
counter
÷ M
Swallow
counter
÷ S
Phase
frequency
comparator
From reference
counter
Switching between P and P+1
Load signal
Pulse swallow counter
Low-pass filter
f
syn
f
vco
Local
output
Control
voltage
Prescaler
PB1509GV
Following-stage frequency synthesizer
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| P12763EJ1V0AN00 | MCU CMOS 28 LD 20MHZ 8K FLASH, -40C to +85C, 28-SPDIP, TUBE |
| P12C508 | 8-Pin, 8-Bit CMOS Microcontroller |
| P12 | ERSATZAKKU 12V |
| P1300SA | SIDACtor Device |
| P1100S | SIDACtor Device |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| P126-1CCSF | 制造商:Carlisle Interconnect Components 功能描述:BETWEEN SERIES ADAPTER |
| P1261-M06-F13A-832 | 制造商:UNICORP 功能描述: |
| P126-2CCSF | 制造商:Carlisle Interconnect Components 功能描述:BETWEEN SERIES ADAPTER |
| P1263-0004 | 功能描述:工業(yè)壓力 / 力傳感器 SCHAEVITZ PRESSURE TRANSDUCER 0-3500PSI RoHS:否 制造商:Honeywell 工作壓力:0 bar to 25 bar 壓力類型:Sealed Gauge 準(zhǔn)確性:0.25 % 輸出類型: 安裝風(fēng)格:Screw 工作電源電壓:8 V to 30 V 輸出電壓:8 V to 30 V 封裝: |
| P126C-C0T | 制造商:Leviton Manufacturing Co 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。