參數(shù)資料
型號: AD7457BRTZ-REEL7
廠商: Analog Devices Inc
文件頁數(shù): 8/21頁
文件大?。?/td> 0K
描述: IC ADC 12BIT PSEUDO-DIFF SOT23-8
標(biāo)準(zhǔn)包裝: 1
位數(shù): 12
采樣率(每秒): 100k
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 3mW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: SOT-23-8
供應(yīng)商設(shè)備封裝: SOT-23-8
包裝: 標(biāo)準(zhǔn)包裝
輸入數(shù)目和類型: 1 個偽差分,雙極
產(chǎn)品目錄頁面: 777 (CN2011-ZH PDF)
其它名稱: AD7457BRTZ-REEL7DKR
AD7457
Rev. A | Page 15 of 20
Table 5. SPORT0 Configuration
Bit
Setting
Comment/Description
ISCLK
1
Serial clock is generated internally
SLEN
1111
16 bits of conversion data
RFSR
0
Receive frame sync required every word
TFSR
Don’t care
Not used
IRFS
0
RFS is set to be an input and is
generated externally.
ITFS
Don’t care
Not used
RFSW
1
Alternate receive framing
TFSW
Don’t care
Not used
INVRFS
0
RFS is active high
INVTFS
Don’t care
Not used
SPORT0 is configured by setting the bits in its control register,
as listed in Table 5.
The flag to generate the CS signal is generated by SPORT1. It is
connected to both the ADC and the RFS input of SPORT0 to
provide the frame sync signal for the DSP.
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