參數(shù)資料
型號: AD6654BBCZ
廠商: Analog Devices Inc
文件頁數(shù): 36/88頁
文件大?。?/td> 0K
描述: IC ADC 14BIT W/6CH RSP 256CSPBGA
標(biāo)準(zhǔn)包裝: 1
位數(shù): 14
采樣率(每秒): 92.16M
數(shù)據(jù)接口: 串行,并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 2.5W
電壓電源: 模擬和數(shù)字
工作溫度: -25°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 256-BGA,CSPBGA
供應(yīng)商設(shè)備封裝: 256-CSPBGA(17x17)
包裝: 托盤
輸入數(shù)目和類型: 1 個(gè)差分,單極
AD6654
Rev. 0 | Page 41 of 88
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]
Data Source
000
Channel 0
001
Channel 1
010
Channel 2
011
Channel 3
1x0
Channel 4
1x1
Channel 5
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.
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