AD6655-125EBZ1 AD [Analog Devices], AD6655-125EBZ1 Datasheet - Page 25
AD6655-125EBZ1
Manufacturer Part Number
AD6655-125EBZ1
Description
IF Diversity Receiver
Manufacturer
AD [Analog Devices]
Datasheet
1.AD6655-125EBZ1.pdf
(84 pages)
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Figure 25. AD6655-150 Single-Tone FFT with f
Figure 26. AD6655-125 Single-Tone FFT with f
Figure 27. AD6655-125 Single-Tone FFT with f
–100
–120
–140
–100
–120
–140
–100
–120
–140
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
0
0
0
0
0
0
150MSPS
445.1MHz @ –1dBFS
SNR = 67.4dBc (65.4dBFS)
SFDR = 74.1dBc
f
125MSPS
30.3MHz @ –1dBFS
SNR = 74.7dBc (75.7dBFS)
SFDR = 89.6dBc
f
NCO
NCO
= 429MHz
= 21MHz
SECOND HARMONIC
5
5
5
THIRD HARMONIC
10
10
10
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
15
THIRD HARMONIC
15
15
20
SECOND HARMONIC
125MSPS
2.4MHz @ –1dBFS
SNR = 74.5dBc (75.5dBFS)
SFDR = 87.8dBc
f
NCO
IN
IN
IN
20
20
= 445.1 MHz, f
=2.4 MHz, f
= 15.75MHz
= 30.3 MHz, f
25
30
25
25
HARMONIC
NCO
THIRD
NCO
NCO
= 15.75 MHz
35
= 429 MHz
= 21 MHz
30
30
Rev. 0 | Page 25 of 84
Figure 29. AD6655-125 Single-Tone FFT with f
Figure 30. AD6655-125 Single-Tone FFT with f
Figure 28. AD6655-125 Single-Tone FFT with f
–100
–120
–140
–100
–120
–140
–100
–120
–140
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
0
0
0
0
0
0
5
5
5
10
10
10
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
15
15
15
125MSPS
70.3MHz @ –1dBFS
SNR = 74.6dBc (75.6dBFS)
SFDR = 86.1dBc
f
125MSPS
140.1MHz @ –1dBFS
SNR = 74.1dBc (75.1dBFS)
SFDR = 90.3dBc
f
125MSPS
220.1MHz @ –1dBFS
SNR = 73.4dBc (74.4dBFS)
SFDR = 90.2dBc
f
THIRD HARMONIC
NCO
NCO
NCO
IN
IN
IN
20
20
= 140.1 MHz, f
20
= 220.1 MHz, f
= 70.3 MHz, f
= 78MHz
= 142MHz
= 231MHz
THIRD HARMONIC
25
25
25
AD6655
NCO
NCO
NCO
= 78 MHz
= 142 MHz
= 231 MHz
30
30
30
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