XRD64L44 Datasheet, PDF (11/15 Pages) Exar Corporation – Dual 10-Bit 50MSPS CMOS ADC

Preliminary
XRD64L44
65
60
55
50
2.8V
3.0V
2.90M Hz
3.2V
6.90M Hz
3.4V
9.90M Hz
3.6V
Figure 2 - SINAD vs. Fin and Vdd @Fc =
40.0MHz, DIFFERENTIAL INPUT MODE
0.00
-20.00
-40.00
Single Tone 8192 Point FFT
SFDR -72.66
SINAD -57.97
-60.00
-80.00
-100.00
-120.00
DC
4.0
8.1
12.1
16.1
Frequency in MHz
Figure 4 - FFT Spectrum @Fclock = 40.0MHz,
Fin = 4.0MHz, DIFFERENTIAL INPUT MODE
60
55
50
45
40
2.8V
3.0V
2.90M Hz
3.2V
6.90M Hz
3.4V
9.90M Hz
3.6V
Figure 6 - SINAD vs. Fin and Vdd @Fc =
40.0MHz, SINGLE-ENDED INPUT MODE
60.00
55.00
50.00
45.00
40.00
3.0V
3.2V
Fclk = 50.0MHz
Fclk = 56.7MHz
3.4V
3.6V
Fclk = 53.3MHz
Fclk = 60.0MHz
Figure 3 - SINAD vs. Fclock and Vdd DIFFEREN-
TIAL INPUT MODE
0.00
-20.00
-40.00
Single Tone 8192 Point FFT
SFDR -69.77
SINAD -57.11
-60.00
-80.00
-100.00
-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 5 - FFT Spectrum @Fclock = 40.0MHz,
Fin = 10.0MHz, DIFFERENTIAL INPUT MODE
0.00
-20.00
-40.00
-60.00
-80.00
-100.00
-120.00
DC
Single Tone 8192 Point FFT
SFDR -62.57
SINAD -55.25
4.0
8.1
12.1
16.1
Frequency in MHz
Figure 7 - FFT Spectrum @Fclock = 40.0MHz,
Fin = 4.0MHz, Single-ended INPUT MODE
Rev. P1.00
11