AD6654 Analog Devices, AD6654 Datasheet - Page 41
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AD6654
Manufacturer Part Number
AD6654
Description
14-Bit, 92.16 MSPS, 4 & 6-Channel Wideband IF to Base Band Receiver
Manufacturer
Analog Devices
Datasheet
1.AD6654.pdf
(88 pages)
Specifications of AD6654
Resolution (bits)
14bit
# Chan
1
Sample Rate
92.16MSPS
Interface
Par
Analog Input Type
Diff-Uni
Adc Architecture
Subranging
Pkg Type
BGA,CSP
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INTERMEDIATE DATA ROUTER
Following the FIR-HB cascade filters is the intermediate data
router. This data router consists of muxes that allow the I and Q
data from any channel front end (input port + NCO + CIC +
FIRHB) to be processed by any channel back end (MRCF +
DRCF + CRCF). The choice of channel front end is made by
programming a 3-bit MRCF data select word in the MRCF
control register. The valid values for this word and their
corresponding settings are listed in Table 19.
Table 19. Data Router Select Settings
MRCF Data Select[2:0]
000
001
010
011
1x0
1x1
Data Source
Channel 0
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Rev. 0 | Page 41 of 88
Allowing different channel back ends to select different channel
front ends is useful in the polyphase implementation of filters.
When multiple AD6654 channels are used to process a single
carrier, a single-channel front end feeds more than one channel
back end. After processing through the channel back ends (RCF
filters), the data is interleaved back from all the polyphased
channels.
AD6654