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electricalcharacteristics(digitalspecifications)
DAC5687
SLWS164B–FEBRUARY2005–REVISEDJUNE2005
electricalcharacteristics(持续)
overrecommendedoperatingfree-airtemperaturerange,avdd=3.3v,clkvdd=3.3v,pllvdd=0v(=3.3vforpll
clockmode),iovdd=3.3v,dvdd=1.8v,iout
FS
=19.2ma,externalclockmode,4:1transformeroutputtermination,
50-
Ω
doublyterminatedload(unlessotherwisenoted)
ACSPECIFICATIONS
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
singlecarrier,baseband,x4,pllclockmode,
78.4
clk1=122.88mhz
singlecarrier,baseband,x4,pllclockmode,
78.5
clk2=491.52mhz
singlecarrier,如果=153.6mhz,x4cmix,externalclock
70.9
模式,clk2=491.52mhz
twocarrier,如果=153.6mhz,x4cmix,externalclock
67.8
模式,clk2=491.52mhz
fourcarrier,baseband,x4,externalclockmode,
76.1
clk2=491.52mhz
ACLR
(4)
AdjacentchannelleakageratiodBc
fourcarrier,如果=92.16mhz,x4l,externalclockmode,
66.8
clk2=491.52mhz
singlecarrier,如果=153.6mhz,x4cmix,externalclock
72.2
模式,clk2=491.52mhz,dvdd=2.1v
twocarrier,如果=153.6mhz,x4cmix,externalclock
69.3
模式,clk2=491.52mhz,dvdd=2.1v
fourcarrier,baseband,x4,externalclockmode,
68.5
clk2=491.52mhz,dvdd=2.1v
fourcarrier,如果=92.16mhz,x4l,externalclockmode,
66.3
clk2=491.52mhz,dvdd=2.1v
50-mhzoffset,1-mhzbw,singlecarrier,baseband,
92
x4,externalclockmode,clk1=122.88mhz
50-mhzoffset,1-mhzbw,fourcarrier,baseband,
81
x4,externalclockmode,clk1=122.88mhz
NoiseFloordBc
50-mhzoffset,1-mhzbw,singlecarrier,baseband,
88
x4,pllclockmode,clk2=491.52mhz
50-mhzoffset,1-mhzbw,fourcarrier,baseband,
81
x4,pllclockmode,clk2=491.52mhz
(4)w-cdmawith3.84mhzbw,5-mhzspacing,centeredatif.testmodel1,10ms
overrecommendedoperatingfree-airtemperaturerange,avdd=3.3v,clkvdd=3.3v,pllvdd=3.3v,iovdd=3.3v,
dvdd=1.8v,iout
FS
=19.2ma(unlessotherwisenoted)
DIGITALSPECIFICATIONS
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
CMOSINTERFACE
V
IH
高-levelinputvoltage23v
V
IL
低-levelinputvoltage000.8v
I
IH
高-levelinputcurrent–4040µa
I
IL
低-levelinputcurrent–4040µa
Inputcapacitance5pF
IOVDD–
I
加载
=–100µAV
0.2
V
OH
plllock,sdo,sdio
0.8x
I
加载
=–8mAV
IOVDD
I
加载
=100µa0.2v
V
OL
plllock,sdo,sdio
0.22x
I
加载
=8mAV
IOVDD
externalordual-clockmodes16250
InputdatarateMSPS
PLLclockmode16160
9
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