AD9975_15 Datasheet, PDF (7/20 Pages) Analog Devices – Broadband Modem Mixed-Signal Front End

Typical Performance Characteristics–AD9975
10
INTERPOLATION FILTER
0
–10
–20
–30
INCLUDING
SIN(X)/X
–40
–50
–60
–70
–80
–90
–100
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
F_SAMPLE
TPC 1. 2 × Low-Pass Interpolation Filter
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0
5
10
15 20
25
30
35
40 45
FREQUENCY – MHz
TPC 4. Single Tone Spectral Plot @ f_DATA = 50 MSPS,
f_OUT = 11 MHz, 2 × LPF
10
INTERPOLATION FILTER
0
–10
INCLUDING
SIN(X)/X
–20
–30
–40
–50
–60
–70
–80
–90
–100
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
F_S – MHz
TPC 2. 2 × Band-Pass Interpolation Filter, F_S/2
Modulation, Adjacent Image Preserved
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
10.0 1.02 10.4 10.6 10.8 11.0 11.2 11.4 11.6 11.8 12.0
FREQUENCY – MHz
TPC 5. Dual Tone Spectral Plot @ f_DATA = 50 MSPS,
f_OUT = 6.7 MHz and 7.3 MHz, 2 × LPF
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0
5
10 15 20
25 30 35 40 45
FREQUENCY – MHz
TPC 3. Single Tone Spectral Plot @ f_DATA = 50 MSPS,
f_OUT = 5 MHz, 2 × LPF
–70
–72
–74
THIRD ORDER
HARMONIC
–76
–78
–80
–82
–84
SECOND ORDER
HARMONIC
–86
–88
–90
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
FREQUENCY – MHz
TPC 6. Harmonic Distortion vs. f_OUT @f_DATA = 50 MSPS
REV. 0
–7–