CA3318 데이터 시트보기 (PDF) - Intersil
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CA3318 Datasheet PDF : 12 Pages
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CA3318
Signal-to-Noise + Distortion Ratio (SINAD)
Total Harmonic Distortion (THD)
SINAD is the measured RMS signal to RMS sum of all other THD is the ratio of the RMS sum of the first 5 harmonic
spectral components below the Nyquist frequency excluding DC. components to the RMS value of the measured input signal.
Effective Number of Bits (ENOB)
The effective number of bits (ENOB) is derived from the
SINAD data. ENOB is calculated from:
ENOB = (SINAD - 1.76 + VCORR)/6.02,
where: VCORR = 0.5dB.
6.4V REF
+6.4V REF
+5V
VIN1
0V TO 6.4V
MID-POINT
DRIVER
VREF+
VAA+
VAA-
A
VIN
VIN
VREF-
OF
VDD
BIT 8
BIT 1
CL
PH
CE2
CE1
VSS
A
VREF+
VDD
CE2
VIN
CE1
VIN
OF
BIT 8
+5V
A
VAA+
VAA-
VREF -
A
BIT 1
CL
PH
VSS
NC
+5V
D
+5V
D
FIGURE 13. USING TWO CA3318s FOR 9-BIT RESOLUTION
BIT 9
BIT 8
BIT 1
CLOCK
PHASE
10
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