參數(shù)資料
型號(hào): ICS854S036AKLFT
廠商: IDT, Integrated Device Technology Inc
文件頁(yè)數(shù): 12/16頁(yè)
文件大?。?/td> 0K
描述: IC CLK BUFF 1:3/1:6 2GHZ 32VFQFN
標(biāo)準(zhǔn)包裝: 1
系列: HiPerClockS™
類型: 扇出緩沖器(分配)
電路數(shù): 2
比率 - 輸入:輸出: 1:3,1:6
差分 - 輸入:輸出: 是/是
輸入: CML,LVDS,LVPECL,SSTL
輸出: LVDS
頻率 - 最大: 2GHz
電源電壓: 3.135 V ~ 3.465 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝: 32-VFQFPN(5x5)
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: 800-2253-6
ICS854S036 Data Sheet
LOW SKEW, DUAL, DIFFERENTIAL-TO-LVDS FANOUT BUFFER
ICS854S036 REVISION A NOVEMBER 16, 2009
5
2009 Integrated Device Technology, Inc.
Additive Phase Jitter
The spectral purity in a band at a specific offset from the fundamental
compared to the power of the fundamental is called the dBc Phase
Noise. This value is normally expressed using a Phase noise plot
and is most often the specified plot in many applications. Phase noise
is defined as the ratio of the noise power present in a 1Hz band at a
specified offset from the fundamental frequency to the power value of
the fundamental. This ratio is expressed in decibels (dBm) or a ratio
of the power in the 1Hz band to the power in the fundamental. When
the required offset is specified, the phase noise is called a dBc value,
which simply means dBm at a specified offset from the fundamental.
By investigating jitter in the frequency domain, we get a better
understanding of its effects on the desired application over the entire
time record of the signal. It is mathematically possible to calculate an
expected bit error rate given a phase noise plot.
As with most timing specifications, phase noise measurements has
issues relating to the limitations of the equipment. Often the noise
floor of the equipment is higher than the noise floor of the device. This
is illustrated above. The device meets the noise floor of what is
shown, but can actually be lower. The phase noise is dependent on
the input source and measurement equipment.
IFR2042 10kHz - 5.4GHz Low Noise Signal Generator as external
input to a Hewlett Packard 8133A 3GHz Pulse Generator.
Additive Phase Jitter @ 100MHz
12kHz to 20MHz = 0.06ps (typical)
SSB
Phas
e
N
o
ise
dBc/Hz
Offset from Carrier Frequency (Hz)
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