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參數資料
| 型號： | LMX2531LQ1778E |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | PLLatinum High Performance Frequency Synthesizer System with Integrated VCO |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 80 MHz, QCC36 |
| 封裝： | 6 X 6 MM, 0.80 MM HEIGHT, LEAD FREE, LLP-36 |
| 文件頁數： | 10/25頁 |
| 文件大小： | 589K |
| 代理商： | LMX2531LQ1778E |
Electrical Characteristics
(V
CC
= 3.0 V, -40C
≤
T
A
≤
85 C; except as specified.) (Continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Digital Interface (DATA, CLK, LE, CE, Ftest/LD, FLout)
High-Level Input Voltage
Low-Level Input Voltage
High-Level Input Current
Low-Level Input Current
High-Level Output Voltage
Low-Level Output Voltage
MICROWIRE Timing
Data to Clock Set Up Time
Data to Clock Hold Time
Clock Pulse Width High
Clock Pulse Width Low
Clock to Enable Set Up Time
Enable to Clock Set Up Time
Enable Pulse Width High
V
IH
V
IL
I
IH
I
IL
V
OH
V
OL
1.6
2.75
0.4
3.0
3.0
V
V
μA
μA
V
V
V
IH
= 1.75
V
IL
= 0 V
I
OH
= 500 μA
I
OL
= -500 μA
-3.0
-3.0
2.0
0.4
t
CS
t
CH
t
CWH
t
CWL
t
ES
t
CES
t
EWH
See Data Input Timing
See Data Input Timing
See Data Input Timing
See Data Input Timing
See Data Input Timing
See Data Input Timing
See Data Input Timing
25
20
25
25
25
25
25
ns
ns
ns
ns
ns
ns
ns
Note 2:
Normalized Phase Noise Contribution is defined as: LN(f) = L(f) – 20log(N) – 10log(Fcomp) where L(f) is defined as the single side band phase noise
measured at an offset frequency, f, in a 1 Hz Bandwidth and Fcomp is the comparison frequency of the synthesizer. The offset frequency, f, must be chosen
sufficiently smaller then the PLL’s loop band-width, and large enough to avoid a substantial noise contribution from the reference.
Note 3:
Continuous Lock Temperature Range is how far the temperature can drift in either direction from it’s original value at the time of the part being programmed,
before the PLL has to be reprogrammed. The action of programming the R0 register activates a calibration routine. However, if this register is not reprogrammed,
the temperature drift spec applies. Note that regardless of what temperature the part was initially programmed at, the temperature can never drift outside the
frequency range of -40C
≤
T
A
≤
85C without violating specifications.
Note 4:
The VCO phase noise is measured assuming that the loop bandwidth is sufficiently narrow that the VCO noise dominates. The maximum limits apply only
at center frequecy and over temperature, assuming that the part is reloaded at each test frequency. Over frequency, the phase noise can vary 1-2 dB, with the worst
case performance typically occurring at the highest frequency. Over temperature, the phase noise typically varies 1-2 dB, assuming the part is reloaded.
Serial Data Timing Diagram
20101103
L
www.national.com
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LMX2531LQ1778E/NOPB | 功能描述:鎖相環 - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數量: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 |
| LMX2531LQ1778ENOPB | 制造商:National Semiconductor 功能描述:PLL Frequency Synthesizer Single 1726MHz to 1840MHz 36-Pin LLP EP T/R |
| LMX2531LQ1910E | 制造商:Texas Instruments 功能描述:PLL Frequency Synthesizer Single 1834MHz to 2028MHz 36-Pin LLP EP T/R |
| LMX2531LQ1910E/NOPB | 功能描述:鎖相環 - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數量: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 |
| LMX2531LQ1950/NOPB | 功能描述:IC PLL FREQ SYNTH W/VCO 36-LLP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發生器，PLL，頻率合成器 系列:PowerWise® 標準包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數: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:* 供應商設備封裝:* 包裝:* |
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