AD9288/PCB Analog Devices Inc, AD9288/PCB Datasheet - Page 13

• Manufacturer Part Number: AD9288/PCB
• Description: BOARD EVAL FOR AD9288
• Manufacturer: Analog Devices Inc

Specifications of AD9288/PCB

• Rohs Status: RoHS non-compliant

TERMINOLOGY
Analog Bandwidth (Small Signal)
The analog input frequency at which the spectral power of the
fundamental frequency (as determined by the FFT analysis) is
reduced by 3 dB.
Aperture Delay
The delay between a 50% crossing of Encode and the instant at
which the analog input is sampled.
Aperture Uncertainty (Jitter)
The sample-to-sample variation in aperture delay.
Differential Nonlinearity
The deviation of any code from an ideal 1 LSB step.
Encode Pulse Width/Duty Cycle
Pulse width high is the minimum amount of time that the
Encode pulse should be left in Logic 1 state to achieve rated
performance; pulse width low is the minimum time Encode
pulse should be left in low state. At a given clock rate, these
specs define an acceptable Encode duty cycle.
Integral Nonlinearity
The deviation of the transfer function from a reference line
measured in fractions of 1 LSB using a “best straight line”
determined by a least square curve fit.
Minimum Conversion Rate
The Encode rate at which the SNR of the lowest analog signal
frequency drops by no more than 3 dB below the guaranteed
limit.
Maximum Conversion Rate
The Encode rate at which parametric testing is performed.
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Output Propagation Delay
The delay between a 50% crossing of Encode and the time
when all output data bits are within valid logic levels.
Power Supply Rejection Ratio
The ratio of a change in input offset voltage to a change in
power supply voltage.
Signal-to-Noise-and-Distortion (SINAD)
The ratio of the rms signal amplitude (set at 1 dB below full
scale) to the rms value of the sum of all other spectral compo-
nents, including harmonics but excluding dc.
Signal-to-Noise Ratio (SNR)
The ratio of the rms signal amplitude (set at 1 dB below full
scale) to the rms value of the sum of all other spectral
components, excluding the first five harmonics and dc.
Spurious-Free Dynamic Range (SFDR)
The ratio of the rms signal amplitude to the rms value of the
peak spurious spectral component. The peak spurious compo-
nent may or may not be a harmonic. May be reported in dBc
(i.e., degrades as signal level is lowered), or in dBFS (always
related back to converter full scale).
Two-Tone Intermodulation Distortion Rejection
Two-Tone SFDR
The ratio of the rms value of either input tone to the rms value
of the peak spurious component. The peak spurious component
may or may not be an IMD product. May be reported in dBc
(i.e., degrades as signal level is lowered), or in dBFS (always
related back to converter full scale).
Worst Harmonic
The ratio of the rms value of either input tone to the rms value
of the worst third order intermodulation product; reported in
dBc.
AD9288