AD6634BBC View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
AD6634BBC Datasheet PDF : 52 Pages
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WIDEBAND INPUT SPECTRUM (؊fSAMPLE/2 TO fSAMPLE/2)
SIGNAL OF INTEREST “IMAGE”
AD6634
SIGNAL OF INTEREST
–fS/2
–3fS/8 –5fS/16
–fS/4
–3fS/16
–fS/8
–fS/16
dc
fS/16
fS/8
3fS/16
fS/4
5fS/16
3fS/8
fS/2
WIDEBAND INPUT SPECTRUM (e.g., 30MHz FROM HIGH SPEED ADC)
AFTER FREQUENCY TRANSLATION
NCO “TUNES” SIGNAL TO BASEBAND
–fS/2
–3fS/8 –5fS/16
–fS/4
–3fS/16
–fS/8
–fS/16
dc
fS/16
fS/8
3fS/16
fS/4
5fS/16
3fS/8
fS/2
FREQUENCY TRANSLATION (e.g., SINGLE 1MHz CHANNEL TUNED TO BASEBAND)
Figure 1a. Frequency Translation of Wideband Input Spectrum
20
0
–20
–40
–60
–80
–100
–120
–1.5؋104
–1.0؋104
–5000
0
kHz
5000
1.0؋104
Figure 1b. Composite Filter Response of rCIC2, CIC5, and RCF
1.5؋104
REV. 0
–5–
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