AD6642 Analog Devices, AD6642 Datasheet - Page 12

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AD6642

Manufacturer Part Number
AD6642
Description
Dual IF Receiver
Manufacturer
Analog Devices
Datasheet

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AD6642
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = 1.8 V, DRVDD = 1.8 V, sample rate = 185 MSPS, 1.75 V p-p differential input, VIN = −1.0 dBFS, 32k sample, T
otherwise noted.
–100
–120
–100
–120
–100
–120
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
0
0
0
0
0
0
Figure 7. Single-Tone FFT with f
f
f
SNR = 65.4dB (66.4dBFS)
SFDR = 86dBc
Figure 5. Single-Tone FFT with f
Figure 6. Single-Tone FFT with f
S
IN
10
= 185MSPS
10
10
= 70.3MHz @ –1dBFS
HARMONIC
THIRD
20
20
20
30
30
30
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
40
HARMONIC
40
40
SECOND
HARMONIC
HARMONIC
50
50
50
SECOND
THIRD
f
f
SNR = 65.7dB (66.7dBFS)
SFDR = 89.7dBc
f
f
SNR = 65.3dB (66.3dBFS)
SFDR = 88dBc
S
IN
S
IN
IN
IN
IN
= 185MSPS
= 185MSPS
= 30.3MHz @ –1dBFS
= 140.1MHz @ –1dBFS
= 140.1 MHz
60
60
60
= 30.3 MHz
= 70.3 MHz
70
70
70
HARMONIC
HARMONIC
THIRD
SECOND
80
80
80
90
90
90
Rev. A | Page 12 of 32
–100
–120
–100
–120
–100
–120
–140
Figure 10. Single-Tone FFT with f
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
0
0
0
0
0
0
Figure 8. Single-Tone FFT with f
Figure 9. Single-Tone FFT with f
10
10
10
in 22% BW Mode with Tuning Word = 28
20
20
20
HARMONIC
SECOND
30
30
30
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
40
40
40
IN
HARMONIC
= 140.1 MHz, NSR Enabled
f
f
NSR 22% BW MODE, TW = 28
SNR = 73dB (74.6dBFS) (IN-BAND)
SFDR = 89.7dBc (IN-BAND)
50
50
50
S
IN
THIRD
HARMONIC
= 185MSPS
f
f
SNR = 64.6dB (65.6dBFS)
SFDR = 86.1dBc
= 140.1MHz @ –1.6dBFS
HARMONIC
f
f
SNR = 64.8dB (65.8dBFS)
SFDR = 80dBc
S
IN
S
IN
THIRD
IN
IN
THIRD
= 185MSPS
= 185MSPS
= 230.3MHz @ –1dBFS
= 200.3MHz @ –1dBFS
= 200.3 MHz
= 230.3 MHz
60
60
60
70
70
70
A
HARMONIC
= 25°C, unless
SECOND
HARMONIC
SECOND
80
80
80
90
90
90

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