TS83102G0B ATMEL Corporation, TS83102G0B Datasheet - Page 27

• Manufacturer Part Number: TS83102G0B
• Description: 10-bit 2 GSPS ADCthis State-of-the-art 10-bit 2 GSPS Converter Offers an Unprecedented Bandwidth of 3.3 GHZ And Excellent Band Flatness, Allowing to Directly Digitize Very High if Signals (2nd And 3rd Nyquist Zones) With High Linearity : The SFDR Rem
• Manufacturer: ATMEL Corporation

2101C–BDC–02/04
Figure 26. Dual Tone Reconstructed Signal Spectrum at Fs = 1.4 Gsps, Fin1 = 1244 MHz,
Fin2 = 1255 MHz (-7 dBFS), IMD3 = 65 dBFS
Note:
The ADC input signal is sampled at 1.4 Gsps but data acquisition is 8 times decimated. Thus,
the spectrum is displayed from DC to Fs/2 divided by the decimation factor
[(Fs/2)/8 = 87.5 MHz]. The dual tone IMD3 at 1.4 Gsps is around -65 dBFS for Fin = 1 GHz
± 250 MHz (Fin range is from 750 MHz to 1250 MHz).
-100
-110
-10
-20
-30
-40
-50
-60
-70
-80
-90
10
0
0
2F1 - F2 = 8 MHz
F1 = -7 x (FS/8) + Fin = 19 MHz
-7dBFS
5
-68 dBFS
10
F1 - F2 = 11 MHz
15
-66 dBFS
20
IMD3
25
30
2F2 - F1 = 41 MHz
F2 = - 7 x (FS/8) + Fin2 = 30 MHz
-7dBFS
35
-65 dBFS
40
45
MHz
50
F1 + F2 = 49 MHz
-68 dBFS
55
60
65
2F1 + F2 = 68 MHz
70
TS83102G0B
2F2 + F1 = 79 MHz
-62 dBFS
75
-60 dBFS
80
= Fs/16
85
87.5
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