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HC-55564 Datasheet(PDF) 6 Page - Harris Corporation |
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HC-55564 Datasheet(HTML) 6 Page - Harris Corporation |
6 / 9 page 6 HC-55564 The following typical performance distortion graphs were realized with the test configuration of Figure 7. The measurement vehicle for Total Harmonic Distortion (THD) was an HP-339A distortion measurement set, and for 2nd and 3rd harmonic distortion, an HP-3582A spectrum analyzer. All measurement conditions were at VDD = 5V, and 2nd and 3rd harmonic distortion measurements were C- message filtered. 0dB = 1.2VRMS. FIGURE 7. TEST AND MEASUREMENT CIRCUIT FIGURE 8. CVSD SIGNAL LEVEL vs TOTAL HARMONIC DISTORTION FIGURE 9A. FIGURE 10A. FIGURE 9B. FIGURE 10B. FIGURE 9C. FIGURE 9. CVSD INPUT LEVEL vs 2ND AND 3RD HARMONIC DISTORTION FIGURE 10C. FIGURE 10. CVSD INPUT FREQUENCY vs 2ND AND 3RD HARMONIC DISTORTION FUNCT. 0.33 µF 5 HC-55564 AIN AOUT DEC/ ENC VDD APT FZ AGND DGND 5V +1.0 µF C-MES- FILTER HP3582A SPECTRUM ANALYZER OR HP339A DISTORTION ANALYZER GEN. 0.33 µF SAGE 1 11 13 3 10 8 2 30% 10% 3% 1% -10 -20 -30 -40 -24 -16 -8 0 16KHz 32KHz 64KHz INPUT FREQ. = 1kHz THD INPUT SIGNAL LEVEL (dB) (dB) 16kHz CLOCK INPUT FREQUENCY 1kHz -10 -20 -30 -40 -24 -17 -11 INPUT SIGNAL LEVEL (dB) CVSD INPUT LEVEL vs 2ND AND 3RD HARMONIC DISTORTION C-MESSAGE WEIGHTED -50 -3.8 +3.0 3RD 2ND INPUT FREQUENCY (Hz) -10 -20 -30 -40 0 1000 2000 CVSD SIGNAL TO 2ND AND 3RD HARMONIC DISTORTION C-MESSAGE WEIGHTED -50 3000 3RD 2ND VIN = 0.5VRMS 16kHz CLOCK -10 -20 -30 -40 -24 -17 -11 INPUT SIGNAL LEVEL (dB) CVSD INPUT LEVEL vs 2ND AND 3RD HARMONIC DISTORTION C-MESSAGE WEIGHTED -50 -3.8 +3.0 3RD 2ND 32kHz CLOCK INPUT FREQUENCY 1kHz -10 -20 -30 -40 0 1000 2000 INPUT FREQUENCY (Hz) CVSD SIGNAL TO 2ND AND 3RD HARMONIC DISTORTION C-MESSAGE WEIGHTED -50 3000 3RD 2ND VIN = 0.5VRMS 32kHz CLOCK 4000 -60 -10 -20 -30 -40 -24 -17 -11 INPUT SIGNAL LEVEL (dB) CVSD INPUT LEVEL vs 2ND AND 3RD HARMONIC DISTORTION C-MESSAGE WEIGHTED -50 -3.8 +3.0 3RD 2ND 64kHz CLOCK INPUT FREQUENCY 1kHz -10 -20 -30 -40 0 1000 2000 INPUT FREQUENCY (Hz) CVSD SIGNAL TO 2ND AND 3RD HARMONIC DISTORTION C-MESSAGE WEIGHTED -60 3000 3RD 2ND VIN = 0.5VRMS 64kHz CLOCK 4000 -50 |
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