Datasheet

REV. D
–5–
Typical Performance Characteristics–AD9057
0
–10
–90
030
dB
–50
–60
–70
–80
–30
–40
–20
ENCODE = 60MSPS
ANALOG IN = 10.3MHz, –0.5dBFS
SINAD = 46.1dB
ENOB = 7.36 BITS
SNR = 46.5dB
FREQUENCY
(
MHz
)
TPC 1. Spectral Plot 60 MSPS, 10.3 MHz
0
–10
–90
030
dB
–50
–60
–70
–80
–30
–40
–20
FREQUENCY (MHz)
ENCODE = 60MSPS
ANALOG IN = 76MHz, –0.5dBFS
SINAD = 44.9dB
ENOB = 7.16 BITS
SNR = 45.2dB
TPC 2. Spectral Plot 60 MSPS, 76 MHz
ANALOG INPUT FREQUENCY
(
MHz
)
dB
0 16020 40 60 80 100 120 140
48
46
30
38
36
34
32
42
40
44
ENCODE = 60MSPS
AIN = –0.5dBFS
SNR
SINAD
TPC 3. SINAD/SNR vs. AIN Frequency
ANALOG INPUT FREQUENCY (MHz)
dB
–30
–70
0 16020 40 60 80 100 120 140
–35
–50
–55
–60
–65
–40
–45
ENCODE = 60MSPS
AIN = –0.5dBFS
THIRD HARMONIC
SECOND HARMONIC
TPC 4. Harmonic Distortion vs. AIN Frequency
FREQUENCY (MHz)
dB
0
–10
–90
03010 20
–50
–60
–70
–80
–30
–40
–20
ENCODE = 60MSPS
F1 IN = 9.5MHz @ –7.0dBFS
F2 IN = 9.9MHz @ –7.0dBFS
2F1 – F2 = –52.0dBc
2F2 – F1 = –53.0dBc
TPC 5. Two-Tone Intermodulation Distortion
ENCODE RATE (MSPS)
54
24
0
5102030405060708090
48
30
18
42
36
AIN = 10.3MHz, –0.5dBFS
SNR
SINAD
dB
12
TPC 6. SINAD/SNR vs. Encode Rate