XRD64L44 Datasheet, PDF (12/15 Pages) Exar Corporation – Dual 10-Bit 50MSPS CMOS ADC

XRD64L44
Preliminary
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Single Tone 8192 Point FFT
SFDR -60.95
SINAD -54.48
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-120.00
DC 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0
Frequency in MHz
Figure 8 - FFT Spectrum @Fclock = 40.0MHz,
Fin = 10.0MHz, Single-ended INPUT MODE
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-120.00
DC
Single Tone 8192 Point FFT
SFDR -66.93
SINAD -56.70
4.0
8.0
12.0
16.0
20.0
24.1
Frequency in MHz
Figure 10 - FFT Spectrum @Fclock = 50.0MHz,
Fin = 4.0MHz, DIFFERENTIAL INPUT MODE
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-120.00
Single Tone 8192 Point FFT
SFDR -64.15
SINAD -50.91
Frequency in MHz
Figure 12 - FFT Spectrum @Fclock = 50.0MHz,
Fin = 24.1MHz, DIFFERENTIAL INPUT MODE
60.00
55.00
50.00
45.00
2.80V
3.00V
2.90 M Hz
3.20V
6.90 M Hz
3.40V
9.90 M Hz
3.60V
Figure 9 - SINAD vs. Fin and Vdd @Fc =
50.0MHz, DIFFERENTIAL INPUT MODE
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-20.00
-40.00
-60.00
Single Tone 8192 Point FFT
SFDR -66.93
SINAD -56.70
-80.00
-100.00
-120.00
DC 2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0 22.5
Frequency in MHz
Figure 11 - SINAD @Fclock = 50.0MHz, Fin =
12.5MHz, DIFFERENTIAL INPUT MODE
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55.00
50.00
45.00
40.00
2.80V
3.00V
2.90MHz
3.20V
6.90MHz
3.40V
9.90MHz
3.60V
Figure 13 - SINAD vs. Fin and Vdd @Fc =
50.0MHz, SINGLE-ENDED INPUT MODE
Rev. P1.00
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