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參數(shù)資料
| 型號： | LMX1501AMX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | PLLatinumTM 1.1 GHz Frequency Synthesizer for RF Personal Communications |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 1100 MHz, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SOP-16 |
| 文件頁數(shù)： | 12/22頁 |
| 文件大?。?/td> | 367K |
| 代理商： | LMX1501AMX |
Functional Description
(Continued)
SERIAL DATA INPUT TIMING
TL/W/12340–22
Notes:
Parenthesis data indicates programmable reference divider data.
Data shifted into register on clock rising edge.
Data is shifted in MSB first.
Test Conditions:
The Serial Data Input Timing is tested using a symmetrical waveform around V
CC
/2. The test waveform has an edge rate of 0.6 V/ns with
amplitudes of 2.2V
@
V
CC
e
2.7V and 2.6V
@
V
CC
e
5.5V.
Phase Characteristics
In normal operation, the FC pin is used to reverse the polari-
ty of the phase detector. Both the internal and any external
charge pump are affected.
Depending upon VCO characteristics, FC pin should be set
accordingly:
When VCO characteristics are like (1), FC should be set
HIGH or OPEN CIRCUIT;
When VCO characteristics are like (2), FC should be set
LOW.
When FC is set HIGH or OPEN CIRCUIT, the monitor pin of
the phase comparator input, f
out
, is set to the reference
divider output, f
r
. When FC is set LOW, f
out
is set to the
programmable divider output, f
p
.
VCO Characteristics
TL/W/12340–23
PHASE COMPARATOR AND INTERNAL CHARGE PUMP CHARACTERISTICS
TL/W/12340–24
Notes:
Phase difference detection range:
b
2
q
to
a
2
q
The minimum width pump up and pump down current pulses occur at the D
o
pin when the loop is locked.
FC
e
HIGH
12
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMX1511 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinumTM 1.1 GHz Frequency Synthesizer for RF Personal Communications |
| LMX1511TM | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinumTM 1.1 GHz Frequency Synthesizer for RF Personal Communications |
| LMX1511TMX | 功能描述:IC FREQ SYNTHESZR 1.1GHZ 20TSSOP RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:PLLatinum™ 標(biāo)準(zhǔn)包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
| LMX1531LQ1515E | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High Performance Frequency Synthesizer System with Integrated VCO |
| LMX156 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
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