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參數(shù)資料
| 型號(hào)： | SM802128UMG |
| 廠商： | Micrel Inc |
| 文件頁(yè)數(shù)： | 9/12頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC FREQ SYNTH 156.25MHZ 44QFN |
| 標(biāo)準(zhǔn)包裝： | 260 |
| 系列： | ClockWorks™, RotaryWave™ |
| 類(lèi)型： | * |
| PLL： | 帶旁路 |
| 輸入： | LVCMOS，晶體 |
| 輸出： | LVPECL |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 2:8 |
| 差分 - 輸入:輸出： | 無(wú)/是 |
| 頻率 - 最大： | 312.5MHz |
| 除法器/乘法器： | 是/無(wú) |
| 電源電壓： | 2.375 V ~ 3.465 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 44-VFQFN 裸露焊盤(pán) |
| 供應(yīng)商設(shè)備封裝： | 44-QFN（7x7） |
| 包裝： | 托盤(pán) |
Micrel, Inc.
SM802128
January 2012
6
hbwhelp@micrel.com or (408) 955-1690
AC Electrical Characteristics
(4, 5)
VDD = VDDO1/2 = 3.3V ±5% or 2.5V ±5%
VDD = 3.3V ±5%, VDDO1/2 = 3.3V ±5% or 2.5V ±5%
TA = 40°C to +85°C. RL = 50 to VDDO 2V
Symbol
Parameter
Condition
Min
Typ
Max
Units
FOUT1
Output Frequency 1
FSEL = 1
156.25
MHz
FOUT2
Output Frequency 2
FSEL = 0
312.5
MHz
FREF
Reference Input Frequency
25
MHz
TR/TF
ODC
LVPECL Output Rise/Fall Time
Output Duty Cycle
20% – 80%
80
175
350
ps
48
50
52
%
TSKEW
Output-to-Output Skew
Q1 – Q8
(6)
45
ps
TLOCK
PLL Lock Time
20
ms
Tjit()
RMS Phase Jitter
(7)
156.25MHz
Integration Range (1.875MHz – 20MHz)
Integration Range (12kHz – 20MHz)
312.5MHz
Integration Range (1.875MHz – 20MHz)
Integration Range (12kHz – 20MHz)
110
250
110
250
fs
Spurious Noise Components
6.25MHz using 156.25MHz
12.5MHz using 312.5MHz
-80
-85
dBc
Notes:
1.
Permanent device damage may occur if absolute maximum ratings are exceeded. This is a stress rating only and functional operation is not implied
at conditions other than those detailed in the operational sections of this data sheet. Exposure to absolute maximum rating conditions for extended
periods may affect device reliability.
2.
The data sheet limits are not guaranteed if the device is operated beyond the operating ratings.
3.
Package thermal resistance assumes exposed pad is soldered (or equivalent) to the devices most negative potential on the PCB.
4.
The circuit is designed to meet the AC and DC specifications shown in the above table after thermal equilibrium has been established.
5.
All phase
noise measurements were taken with an Agilent 5052B phasenoise system.
6.
Defined as skew between outputs at the same supply voltage and with equal load conditions and same frequency; measured at the output
differential crossing points.
7.
Measured using a 25MHz crystal as the input reference source. If using an external reference input, use a low phase noise source. With an
external reference, the phase noise will follow the input source phase noise up to about 1MHz offset frequency.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SM802128UMG TR | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 8 LVPECL at 156.25 MHz Clock Synthesizer RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| SM802128UMGTR | 制造商:MICREL 制造商全稱(chēng):Micrel Semiconductor 功能描述:ClockWorksΤΜ 10GbE Octal 156.25MHz,312.5MHz, Ultra-Low Jitter, LVPECL |
| SM802128UMG-TR | 功能描述:IC FREQ SYNTH 312.5MHZ 44QFN 制造商:microchip technology 系列:ClockWorks??，RotaryWave?? 包裝:剪切帶（CT） 零件狀態(tài):停產(chǎn) 類(lèi)型:* PLL:帶旁路 輸入:LVCMOS，晶體 輸出:LVPECL 電路數(shù):1 比率 - 輸入:輸出:2：8 差分 - 輸入:輸出:無(wú)/是 頻率 - 最大值:312.5MHz 分頻器/倍頻器:是/無(wú) 電壓 - 電源:2.375 V ~ 3.465 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:44-VFQFN 裸露焊盤(pán) 供應(yīng)商器件封裝:44-QFN（7x7） 標(biāo)準(zhǔn)包裝:1 |
| SM802133UMG | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 1 LVPECL at 25 MHz Clock Synthesizer RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| SM802133UMG TR | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 1 LVPECL at 25 MHz Clock Synthesizer RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
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