參數(shù)資料
型號: LTC2202CUK#TRPBF
廠商: Linear Technology
文件頁數(shù): 17/32頁
文件大小: 0K
描述: IC ADC 16-BIT 10MSPS 48-QFN
標準包裝: 2,000
位數(shù): 16
采樣率(每秒): 10M
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 165mW
電壓電源: 單電源
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 48-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 48-QFN-EP(7x7)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 1 個差分
配用: DC919A-F-ND - BOARD DEMO 16BIT MSPS LTC2202
DC890B-ND - BOARD USB DATA COLLECTION
LTC2203/LTC2202
24
22032fd
Digital Output Randomizer
Interference from the ADC digital outputs is sometimes
unavoidable. Interference from the digital outputs may be
from capacitive or inductive coupling or coupling through
the ground plane. Even a tiny coupling factor can result in
discernible unwanted tones in the ADC output spectrum.
By randomizing the digital output before it is transmitted
off chip, these unwanted tones can be randomized, trading
a slight increase in the noise oor for a large reduction
in unwanted tone amplitude.
CLKOUT
OF
D15/D0
D14/D0
D2/D0
D1/D0
D0
D1
RAND = HIGH,
SCRAMBLE
ENABLED
D2
D14
D15
OF
CLKOUT
RAND
22032 F11
LTC2203/LTC2202
Figure 10. Functional Equivalent of Digital Output Randomizer
The digital output is “Randomized” by applying an exclu-
sive-OR logic operation between the LSB and all other data
output bits. To decode, the reverse operation is applied;
that is, an exclusive-OR operation is applied between the
LSB and all other bits. The LSB, OF and CLKOUT output
are not affected. The output Randomizer function is active
when the RAND pin is high.
APPLICATIONS INFORMATION
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