adc12d800rfrb National Semiconductor Corporation, adc12d800rfrb Datasheet - Page 29

• Manufacturer Part Number: adc12d800rfrb
• Description: 12-bit, 1.6/1.0 Gsps Rf Sampling Adc
• Manufacturer: National Semiconductor Corporation

SIGNAL TO NOISE PLUS DISTORTION (S/(N+D) or
SINAD) is the ratio, expressed in dB, of the rms value of the
fundamental for a single-tone to the rms value of all of the
other spectral components below half the input clock frequen-
cy, including harmonics but excluding DC.
SPURIOUS-FREE DYNAMIC RANGE (SFDR) is the differ-
ence, expressed in dB, between the rms values of the input
signal at the output and the peak spurious signal, where a
spurious signal is any signal present in the output spectrum
that is not present at the input, excluding DC.
θ
θ
the exposed metal area on the top of the HSBGA package.
θ
the center group of balls on the bottom of the HSBGA pack-
age.
TOTAL HARMONIC DISTORTION (THD) is the ratio ex-
pressed in dB, of the rms total of the first nine harmonic levels
at the output to the level of the fundamental at the output. THD
is calculated as
JA
JC1
JC2
is the thermal resistance between the junction to ambient.
represents the thermal resistance between the die and
represents the thermal resistance between the die and
29
where A
quency and A
harmonic frequencies in the output spectrum.
– Second Harmonic Distortion (2nd Harm) is the differ-
ence, expressed in dB, between the RMS power in the input
frequency seen at the output and the power in its 2nd har-
monic level at the output.
– Third Harmonic Distortion (3rd Harm) is the difference
expressed in dB between the RMS power in the input fre-
quency seen at the output and the power in its 3rd harmonic
level at the output.
f1
is the RMS power of the fundamental (output) fre-
f2
through A
f10
are the RMS power of the first 9
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