參數(shù)資料
型號: AD9877ABSZ
廠商: Analog Devices Inc
文件頁數(shù): 14/36頁
文件大小: 0K
描述: IC PROCESSOR FRONT END 100MQFP
標(biāo)準(zhǔn)包裝: 1
位數(shù): 12
通道數(shù): 3
功率(瓦特): 1.17W
電壓 - 電源,模擬: 3.3V
電壓 - 電源,數(shù)字: 3.3V
封裝/外殼: 100-BQFP
供應(yīng)商設(shè)備封裝: 100-MQFP(14x20)
包裝: 托盤
AD9877
Rev. B | Page 21 of 36
Table 7. Cable Driver Gain Control
Bits [7:4]
CA Interface Transmit Word
0000
0000 0000 (default)
0001
0000 0001
0010
0000 0010
0011
0000 0100
0100
0000 1000
0101
0001 0000
0110
0010 0000
0111
0100 0000
1000
1000 0000
In this mode, the lower bits determine the fine gain setting of
the DAC output.
Table 8. DAC Output Fine Gain Setting
Bits [3:0]
DAC Fine Gain
0000
0.0 dB (default)
0001
0.5 dB
0010
1.0 dB
0011
1.5 dB
...
1110
7.0 dB
1111
7.5 dB
New data is automatically sent over the 3-wire CA interface
(and DAC gain adjust) whenever the value of the active gain
control register changes or a new profile is selected. The default
value is 0x00 (lowest gain).
The formula for the combined output level calculation of the
AD9877 fine gain and the AD8327 or AD8322 coarse gain is
V8327 = V9877(0) + (fine)/2 + 6(coarse) 19
V8322 = V9877(0) + (fine)/2 + 6(coarse) 14
where:
fine is the decimal value of Bits [3:0].
coarse is the decimal value of Bits [7:8].
V9877(0) is the level at AD9877 output in dBmV for fine = 0.
V8327 is the level at output of the AD8327 in dBmV.
V8322 is the level at output of the AD8322 in dBmV.
相關(guān)PDF資料
PDF描述
AD9878BSTZ IC FRONT-END MIXED-SGNL 100-LQFP
AD9879BSZ IC PROCESSOR FRONT END 100MQFP
AD9901KQ IC PHASE/FREQ DISCRIMR 14-CDIP
AD9920ABBCZRL IC PROCESSOR CCD 12BIT 105CSPBGA
AD9978BCPZRL IC PROCESSOR CCD 14BIT 40-LFCSP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD9877BS 制造商:Analog Devices 功能描述:
AD9877-EB 制造商:Analog Devices 功能描述:
AD9878 制造商:AD 制造商全稱:Analog Devices 功能描述:Mixed-Signal Front End for Broadband Applications
AD9878BST 制造商:Analog Devices 功能描述:Mixed Signal Front End 100-Pin LQFP
AD9878BSTRL 制造商:Analog Devices 功能描述:Mixed Signal Front End 100-Pin LQFP T/R 制造商:Analog Devices 功能描述:MIXED SGNL FRONT END 100LQFP - Tape and Reel