85411AMT IDT, Integrated Device Technology Inc, 85411AMT Datasheet - Page 5
![no-image](/images/manufacturer_photos/0/3/324/idt__integrated_device_technology_inc_sml.jpg)
85411AMT
Manufacturer Part Number
85411AMT
Description
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet
1.85411AMT.pdf
(15 pages)
Specifications of 85411AMT
Number Of Outputs
4
Operating Supply Voltage (max)
3.63V
Operating Temp Range
0C to 70C
Propagation Delay Time
2.5ns
Operating Supply Voltage (min)
2.97V
Mounting
Surface Mount
Pin Count
8
Operating Supply Voltage (typ)
3.3V
Package Type
SOIC
Duty Cycle
53%
Operating Temperature Classification
Commercial
Lead Free Status / RoHS Status
Not Compliant
IDT
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
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
ICS85411
LOW SKEW, 1-TO-2 DIFFERENTIAL-TO-LVDS FANOUT BUFFER
™
/ ICS
-100
-110
-120
-130
-140
-150
-160
-170
-180
-190
-10
-20
-30
-40
-50
-60
-70
-80
-90
0
™
100
DIFFERENTIAL-TO-LVDS FANOUT BUFFER
1k
10k
O
FFSET
A
F
ROM
DDITIVE
100k
C
ARRIER
P
HASE
5
F
REQUENCY
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.
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.
1M
J
Jitter
ITTER
Input/Output Additive Phase
(H
@ 200MHz (12kHz to 20MHz)
Z
)
10M
= 0.05ps typical
ICS85411AM REV. C JANUARY 20, 2009
100M
500M