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參數(shù)資料
| 型號： | LMX2331A |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | PLLatinum⑩ Dual Frequency Synthesizer for RF Personal Communications |
| 中文描述： | PLLatinum⑩雙頻率合成射頻個人通信 |
| 文件頁數(shù)： | 13/17頁 |
| 文件大小： | 392K |
| 代理商： | LMX2331A |
Functional Description
(Continued)
PHASE DETECTOR POLARITY
Depending upon VCO characteristics, R16 bit should be set
accordingly: (see figure right)
When VCO characteristics are positive like (1), R16 should
be set HIGH;
When VCO characteristics are negative like (2), R16 should
be set LOW.
SERIAL DATA INPUT TIMING
PHASE COMPARATOR AND INTERNAL CHARGE PUMP CHARACTERISTICS
VCO Characteristics
DS012331-16
DS012331-17
Notes:
Parenthesis data indicates programmable reference divider data.
Data shifted into register on clock rising edge.
Data is shifted in MSB first.
Th V
CC
/2. The test waveform has an edge rate of 0.6V/ns with
Test Conditions:
CC
= 2.7V and 2.6V
@
V
CC
= 5.5V.
DS012331-18
Notes:
Phase difference detection range: 2
π
to +2
π
The minimum width pump up and pump down current pulses occur at the D
o
pin when the loop is locked.
R16 = HIGH
www.national.com
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| LMX2331LSLB | PLLatinum⑩ Low Power Dual Frequency Synthesizer for RF Personal Communications |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMX2331ATM | 制造商:Texas Instruments 功能描述: |
| LMX2331ATMX | 功能描述:IC FREQ SYNTH DUAL 20-TSSOP 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:* |
| LMX2331L | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LMX2331LSLB | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Low Power Dual Frequency Synthesizer for RF Personal Communications |
| LMX2331LSLBX | 制造商:Texas Instruments 功能描述: |
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