
14
FN6804.2
September 10, 2009
Typical Performance Curves All Typical Performance Characteristics apply under the following conditions unless otherwise
noted: AVDD = OVDD = 1.8V, TA = +25°C, AIN = -1dBFS, fIN = 105MHz, fSAMPLE = Maximum
Conversion Rate (per speed grade).
FIGURE 5. SNR AND SFDR vs fIN
FIGURE 6. HD2 AND HD3 vs fIN
FIGURE 7. SNR AND SFDR vs AIN
FIGURE 8. HD2 AND HD3 vs AIN
FIGURE 9. SNR AND SFDR vs fSAMPLE
FIGURE 10. HD2 AND HD3 vs fSAMPLE
50
55
60
65
70
75
80
85
90
SFDR @ 250MSPS
SNR @ 250MSPS
SNR @ 125MSPS
SFDR @ 125MSPS
0M
200M
400M
600M
800M
1G
INPUT FREQUENCY (Hz)
SNR
(dBFS)
AN
D
SFDR
(dBc)
SFDR @ 250MSPS
SNR @ 250MSPS
SNR @ 125MSPS
SFDR @ 125MSPS
-100
-95
-90
-85
-80
-75
-70
-65
-60
-55
-50
INPUT FREQUENCY (Hz)
HD2
AND
HD3
MAGNIT
UDE
(dBc)
HD2 @ 250MSPS
HD2 @ 125MSPS
HD3 @ 125MSPS
HD3 @ 250MSPS
0M
200M
400M
600M
800M
1G
0
10
20
30
40
50
60
70
80
90
100
-60
-50
-40
-30
-20
-10
0
INPUT AMPLITUDE (dBFS)
SNR
AN
D
SFDR
SFDRFS (dBFS)
SFDR (dBc)
SNRFS (dBFS)
SNR (dBc)
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-60
-50
-40
-30
-20
-10
0
INPUT AMPLITUDE (dBFS)
H
D
2AND
H
D
3MAGNITUDE
HD3 (dBFS)
HD3 (dBc)
HD2 (dBc)
HD2 (dBFS)
60
65
70
75
80
85
90
95
70
100
130
160
190
220
250
SAMPLE RATE (MSPS)
S
N
R
(dBFS)
AND
S
F
DR
(dBc)
SFDR
SNR
-120
-110
-100
-90
-80
-70
-60
70
100
130
160
190
220
250
SAMPLE RATE (MSPS)
HD
2AND
HD
3MAGN
ITUDE
(dBc)
HD2
HD3
KAD5514P