Datasheet

AD9634
Rev. 0 | Page 12 of 32
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = 1.8 V, DRVDD = 1.8 V, sample rate = maximum sample rate per speed grade, DCS enabled, 1.75 V p-p differential input,
VIN = −1.0 dBFS, 32k sample, T
A
= 25°C, unless otherwise noted.
0
–140
–120
–100
–80
–60
–40
–20
080
70605040302010
SECOND
HARMONIC
THIRD
HARMONIC
AMPLITUDE (dBFS)
FREQUENCY (MHz)
170MSPS
90.1MHz @ –1.0dBFS
SNR = 69.1dB (70.1dBFS)
SFDR = 93dBc
09996-004
Figure 4. AD9634-170 Single-Tone FFT with f
IN
= 90.1 MHz
0
–140
–120
–100
–80
–60
–40
–20
08070605040302010
SECOND
HARMONIC
THIRD
HARMONIC
AMPLITUDE (dBFS)
FREQUENCY (MHz)
170MSPS
185.1MHz @ –1.0dBFS
SNR = 68.5dB (69.5dBFS)
SFDR = 86dBc
09996-005
Figure 5. AD9634-170 Single-Tone FFT with f
IN
= 185.1 MHz
0
–140
–120
–100
–80
–60
–40
–20
08070605040302010
SECOND
HARMONIC
THIRD
HARMONIC
AMPLITUDE (dBFS)
FREQUENCY (MHz)
170MSPS
220.1MHz @ –1.0dBFS
SNR = 68.2dB (69.2dBFS)
SFDR = 84dBc
09996-006
Figure 6. AD9634-170 Single-Tone FFT with f
IN
= 220.1 MHz
0
–140
–120
–100
–80
–60
–40
–20
0870605040302010 0
SECOND
HARMONIC
THIRD
HARMONIC
AMPLITUDE (dBFS)
FREQUENCY (MHz)
09996-107
170MSPS
305.1MHz @ –1.0dBFS
SNR = 67.2dB (68.2dBFS)
SFDR = 86dBc
Figure 7. AD9634-170 Single-Tone FFT with f
IN
= 305.1 MHz
120
0
20
40
60
80
100
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0
SNR/SFDR (dBc and dBFS)
INPUT AMPLITUDE (dBFS)
SNR (dBFS)
SFDR (dBc)
SNR (dBc)
SFDR (dBFS)
09996-007
Figure 8. AD9634-170 Single-Tone SNR/SFDR vs.
Input Amplitude (A
IN
) with f
IN
= 90.1 MHz, f
S
= 170 MSPS
100
95
90
85
80
75
70
65
60
60 90 120 150 180 210 240 270 300 330
SNR/SFDR (dBc and dBFS)
INPUT FREQUENCY (MHz)
SNR (dBFS)
SFDR (dBc)
09996-008
Figure 9. AD9634-170 Single-Tone SNR/SFDR vs. Input Frequency (f
IN
),
f
S
= 170 MSPS