DA-0520S42TA Ver la hoja de datos (PDF) - American Accurate Components, Inc.
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DA-0520S42TA Datasheet PDF : 4 Pages
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Detector Log Video Amplifiers (DLVA)
The content of this specification may change without notification7/01/09
DLVA
Outline Drawings (Size: mm)
Terms and Definitions
DL1
Operational Bandwidth is the range of input
frequency over which the technical speci-
fications of the amplifier are met.
Log Slope is the straight line slope of the
input/output transfer characteristics of the
detected signal over the dynamic range. The
log slope is expressed in millivolts per dB of a
best-fit straight line as derived by a least-
squares approximation of all data points
Log Linearity is the maximum deviation in dB
of all measured points from the calculated
best-fit straight line. The dynamic range can
be as high as 75dB, depending upon
Dynamic Range is the range of the input
signals in dB over which the output linearity
requirement is met.
Maximum Input Power is the maximum
power that the logarithmic amplifier can
withstand without damage.
DC offset is the residual DC output of a
logarithmic amplifier when the input is
terminated with 50ohm.
Tangential Signal Sensitivity (TSS) defines
the input level that results in an output signal-
to-noise ratio of 6 dB. TSS, which is directly
related to noise figure and bandwidth, aids in
defining the lower limit of the input dynamic
range of a logarithmic amplifier. TSS is also a
convenient way of specifying a logarithmic
amplifier's noise performance, since noise
Rise Time is defined as the time difference
between the 10% point and 90% point on the
rising leading edge of the output video pulse.
Recovery Time for a logarithmic amplifier is
defined in many ways by system engineers.
The most common is to use multiple pulses
and characterize the time between the 90%
point on the trailing edge of the first pulse and
the 10% point on the leading edge of the
DL3
American Accurate Components, Inc.
188 Technology Drive, Unit H, Irvine, CA 92618
4
Tel: 949-453-9888 Fax: 949-453-8889 Email: sales@aacix.com
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