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产品 预告(展)
PINDESCRIPTION
1
2
3
4
12
11
10
9
SCLK
同步
IOV
DD
SDO
V
输出
一个
V
DD
地
V
输出
B
VFBA
VREFA
PD
DCEN
CLR
SDIN
VFBB
VREFB
16 15 14 13
5 6 7 8
DAC7553
SLAS477–AUGUST2005
RGTPACKAGE
(topview)
TerminalFunctions
TERMINALDESCRIPTION
非.名字
1VOUTAAnalogoutputvoltagefromDACA
2VDDAnalogvoltagesupplyinput
3GNDGround
4VOUTBAnalogoutputvoltagefromDACB
5vfbbdacbamplifiersenseinput.
6VREFBPositivereferencevoltageinputforDACB
7PDPowerdown
8dcendaisy-chainenable
9SDOSerialdataoutput
10iovddi/ovoltagesupplyinput
11syncframesynchronizationinput.thefallingedgeofthesyncpulseindicatesthestartofaserialdataframeshiftedout
totheDAC7553
12SCLKSerialclockinput
13SDINSerialdatainput
14clrasynchronousinputtoclearthedacregisters.whenclrislow,thedacregistersaresetto000handtheoutputto
midscalevoltage.
15VREFAPositivereferencevoltageinputforDACA
16vfbadacaamplifiersenseinput.
6
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