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參數(shù)資料
| 型號(hào)： | LMX2531LQ1500EX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 80 MHz, QCC36 |
| 封裝： | 6 X 6 MM, 0.8 MM, LCC-36 |
| 文件頁數(shù)： | 18/24頁 |
| 文件大小： | 458K |
| 代理商： | LMX2531LQ1500EX |
Pin #
Pin Name
I/O
Description
18
VrefVCO
-
Internal reference voltage for VCO LDO. Not intended to drive an external load. Connect to ground with
a capacitor.
19
GND
-
Ground for the VCO circuitry.
20
GND
-
Ground for the VCO Output Buffer circuitry.
21
Fout
O
Buffered RF Output for the VCO.
22
VccBUF
-
Power Supply for the VCO Buffer circuitry. Input may range from 2.8 - 3.2 V. Bypass capacitors should
be placed as close as possible to this pin and ground.
23
Vtune
I
Tuning voltage input for the VCO. For connection to the CPout Pin through an external passive loop
filter.
24
CPout
O
Charge pump output for PLL. For connection to Vtune through an external passive loop filter.
25
FLout
O
An open drain NMOS output which is used for FastLock or a general purpose output.
26
VregPLL1
-
Internally regulated voltage for PLL charge pump. Not intended to drive an external load. Connect to
ground with a capacitor.
27
VccPLL
-
Power Supply for the PLL. Input may range from 2.8 - 3.2 V. Bypass capacitors should be placed as
close as possible to this pin and ground.
28
VregPLL2
-
Internally regulated voltage for RF digital circuitry. Not intended to drive an external load. Connect to
ground with a capacitor.
30
Ftest/LD
O
Multiplexed CMOS output. Typically used to monitor PLL lock condition.
31
OSCin
I
Oscillator input.
32
OSCin*
I
Oscillator complimentary input. When a single ended source is used, then a bypass capacitor should be
placed as close as possible to this pin and be connected to ground.
33
Test
O
This pin if for test purposes and should be grounded for normal operation.
34
GND
-
Ground
36
VregDIG
-
Internally regulated voltage for LDO digital circuitry.
3
www.national.com
LMX2531LQ1500E
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMX2531LQ1515E | 制造商:Texas Instruments 功能描述:PLL Frequency Synthesizer Single 1450MHz to 1580MHz 36-Pin LLP EP T/R 制造商:Texas Instruments 功能描述:CLOCK SYNTHESIZER 1.6GHZ 36LLP |
| LMX2531LQ1515E/NOPB | 功能描述:鎖相環(huán) - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray |
| LMX2531LQ1570E | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum High Performance Frequency Synthesizer System with Integrated VCO |
| LMX2531LQ1570E/NOPB | 功能描述:鎖相環(huán) - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray |
| LMX2531LQ1650E | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High Performance Frequency Synthesizer System with Integrated VCO |
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