Datasheet

AD9122
Rev. B | Page 11 of 60
TYPICAL PERFORMANCE CHARACTERISTICS
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0 50 100 150 200 250 300 350 400 450
HARMONICS (dBc)
f
OUT
(MHz)
f
DATA
= 250MSPS, SECOND HARMONIC
f
DATA
= 250MSPS, THIRD HARMONIC
f
DATA
= 400MSPS, SECOND HARMONIC
f
DATA
= 400MSPS, THIRD HARMONIC
08281-101
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0 50 100 150 200 250 300 350 400 450
SECOND HARMONIC (dBc)
f
OUT
(MHz)
0dBFS
–6dBFS
–12dBFS
–18dBFS
08281-104
Figure 4. Harmonics vs. f
OUT
over f
DATA
, 2× Interpolation,
Digital Scale = 0 dBFS, I
FS
= 20 mA
Figure 7. Second Harmonic vs. f
OUT
over Digital Scale, 2× Interpolation,
f
DATA
= 400 MSPS, I
FS
= 20 mA
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0 50 100 150 200 250 300 350 400 450
HARMONICS (dBc)
f
OUT
(MHz)
f
DATA
= 100MSPS, SECOND HARMONIC
f
DATA
= 100MSPS, THIRD HARMONIC
f
DATA
= 200MSPS, SECOND HARMONIC
f
DATA
= 200MSPS, THIRD HARMONIC
08281-102
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0 50 100 150 200 250 300 350 400 450
THIRD HARMONIC (dBc)
f
OUT
(MHz)
0dBFS
–6dBFS
–12dBFS
–18dBFS
08281-105
Figure 5. Harmonics vs. f
OUT
over f
DATA
, 4× Interpolation,
Digital Scale = 0 dBFS, I
FS
= 20 mA
Figure 8. Third Harmonic vs. f
OUT
over Digital Scale, 2× Interpolation,
f
DATA
= 400 MSPS, I
FS
= 20 mA
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0 100 200 300 400 500 600 700
HARMONICS (dBc)
f
OUT
(MHz)
f
DATA
= 100MSPS, SECOND HARMONIC
f
DATA
= 100MSPS, THIRD HARMONIC
f
DATA
= 150MSPS, SECOND HARMONIC
f
DATA
= 150MSPS, THIRD HARMONIC
08281-103
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0 50 100 150 200 250 300 350 400 450
HARMONICS (dBc)
f
OUT
(MHz)
I
FS
= 10mA, SECOND HARMONIC
I
FS
= 20mA, SECOND HARMONIC
I
FS
= 30mA, SECOND HARMONIC
I
FS
= 10mA, THIRD HARMONIC
I
FS
= 20mA, THIRD HARMONIC
I
FS
= 30mA, THIRD HARMONIC
08281-106
Figure 6. Harmonics vs. f
OUT
over f
DATA
, 8× Interpolation,
Digital Scale = 0 dBFS, I
FS
= 20 mA
Figure 9. Harmonics vs. f
OUT
over I
FS
, 2× Interpolation,
f
DATA
= 400 MSPS, Digital Scale = 0 dBFS