CDB5541 Cirrus Logic Inc, CDB5541 Datasheet - Page 10

• Manufacturer Part Number: CDB5541
• Description: Development Kit
• Manufacturer: Cirrus Logic Inc

Specifications of CDB5541

• Silicon Manufacturer: Cirrus Logic
• Application Sub Type: ADC
• Kit Application Type: Data Converter
• Silicon Core Number: CS5541
• Features: RS-232 Serial Communication With PC, Chip Control And Data Capture, FFT Analysis
• Kit Contents: Board
• Rohs Compliant: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ber of times a certain output code occurred in the
collected data set.
MAXIMUM: Indicator for the maximum value of
the collected data set.
MEAN: Indicator for the mean (average) of the data
sample set.
MINIMUM: Indicator for the minimum value of
the collected data set.
STD. DEV.: Indicator for the Standard Deviation
of the collected data set.
VARIANCE: Indicates the Variance for the cur-
rent data set.
2.3.2 Frequency Domain (FFT) Plots
The following describe the indicators associated
with Frequency Domain (FFT) analysis (Figure 3).
FREQUENCY: Displays the x-axis value of the
cursor on the FFT display. This represents the cen-
ter frequency of the currently selected bin in Hz.
MAGNITUDE: Displays the y-axis value of the
cursor on the FFT display. This represents the total
power in dB contained in the selected bin.
S/D: Indicator for the Signal-to-Distortion Ratio, in
dB. This is the ratio of the signal magnitude to the
magnitude of the first four harmonics.
S/N+D: Indicator for the Signal-to-Noise + Distor-
tion Ratio in dB. This is the ratio of the signal mag-
10
nitude to the magnitude of the first four harmonics
and the noise.
SNR: Indicator for the Signal-to-Noise Ratio in
dB. This is the ratio of the signal magnitude to the
magnitude of the noise (an average noise value is
included in place of the first four harmonics).
S/PN: Indicator for the Signal-to-Peak Noise Ratio
in dB. This is the ratio of the signal magnitude to
the magnitude of the highest noise component not
included in the harmonics of the signal.
# of AVG: Displays the number of FFT’s averaged
in the current display.
2.3.3 Time Domain Plots
The following indicators are associated with Time
Domain analysis (Figure 5).
COUNT: Displays current x-position of the cursor
on the time domain display. This represents the po-
sition of the code within the collected sample set.
MAGNITUDE: Displays current y-position of the
cursor on the time domain display. This represents
the actual code from the converter.
MAXIMUM: Indicator for the maximum value of
the collected data set.
MINIMUM: Indicator for the minimum value of
the collected data set.
CDB5540 CDB5541
DS503DB1