at84ad001b ATMEL Corporation, at84ad001b Datasheet - Page 30

• Manufacturer Part Number: at84ad001b
• Description: Dual 8-bit 1 Gsps Adc
• Manufacturer: ATMEL Corporation

Typical Reconstructed
Signals and Signal
Spectrum
Figure 31. Fs = 1 Gsps and Fin = 20 MHz (1:2 DMUX, Fs/2 DR Type, FiSDA = -15 ps, ISA = -50 ps)
Figure 32. Fs = 1 Gsps and Fin = 500 MHz (1:2 DMUX, Fs/2 DR Type, FiSDA = -15 ps, ISA = -50 ps)
Figure 33. Fs = 1 Gsps and Fin = 1 GHz (1:2 DMUX, Fs/2 DR Type, FiSDA = -15 ps, ISA = -50 ps)
Note:
30
The spectra are given with respect to the output clock frequency observed by the acquisition system (Figures 31 to 33).
AT84AD001B
250
200
150
100
250
200
150
100
250
200
150
100
50
50
50
0
0
0
1
1
1
513
513
513
1025
1025
1025
1537
1537
1537
Samples
Samples
Samples
2049
2049
2049
2561
2561
2561
3073
3073
3073
Ch IA
Ch QA
Ch IA
Ch QA
3585
3585
3585
Ch IA
Ch QA
-100
-120
-100
-120
-20
-40
-60
-80
-100
-120
-20
-40
-60
-80
20
20
-20
-40
-60
-80
0
20
0
0
0
0
0
31
31
31
62
62
62
93
93
93
F (Msps)
F (Msps)
F (Msps)
125
125
125
156
156
156
187
187
187
218
218
218
Ch IA
Ch QA
Ch IA
Ch QA
Ch IA
Ch QA
Fout/2
Fout/2
Fout/2
2153C–BDC–04/04
249
249
249