參數(shù)資料
型號(hào): AD9558/PCBZ
廠商: Analog Devices Inc
文件頁數(shù): 23/104頁
文件大?。?/td> 0K
描述: BOARD EVAL FOR AD9558
產(chǎn)品變化通告: AD9558 Minor Metal Mask Change 17/Apr/2012
設(shè)計(jì)資源: AD9558 Eval Brd BOM
AD9558 Schematic
標(biāo)準(zhǔn)包裝: 1
系列: *
Data Sheet
AD9558
Rev. B | Page 25 of 104
INPUT/OUTPUT TERMINATION RECOMMENDATIONS
AD9557/
AD9558
HSTL OR
LVDS
DOWNSTREAM
DEVICE
WITH HIGH
IMPEDANCE
INPUT AND
INTERNAL
DC BIAS
0.1F
100
09758-
130
Figure 30. AC-Coupled LVDS or HSTL Output Driver
(100 resistor can go on either side of decoupling capacitors and should be
as close as possible to the destination receiver.)
AD9557/
AD9558
HSTL OR
LVDS
Z0 = 50
SINGLE-ENDED
(NOT COUPLED)
LVDS OR 1.8V HSTL
HIGH IMPEDANCE
DIFFERENTIAL
RECEIVER
100
09758-
131
Figure 31. DC-Coupled LVDS or HSTL Output Driver
SINGLE-ENDED
(NOT COUPLED)
VS = 3.3V
3.3V
LVPECL
82
127
0.1F
AD9557/
AD9558
1.8V
HSTL
Z0 = 50
09758-
132
Figure 32. Interfacing the HSTL Driver to a 3.3 V LVPECL Input
(This method incorporates impedance matching and dc biasing for bipolar
LVPECL receivers. If the receiver is self-biased, the termination scheme shown
in Figure 30 is recommended.)
XOA
XOB
AD9557/
AD9558
10MHz TO 50MHz FUNDAMENTAL
AT CUT CRYSTAL WITH
10pF LOAD CAPACITANCE
10pF
09758-
133
Figure 33. System Clock Input (XOA, XOB) in Crystal Mode
(The recommended CLOAD = 10 pF is shown. The values of the 10 pF shunt
capacitors shown here should equal the CLOAD of the crystal.)
XOA
300
150
0.1F
XOB
AD9557/
AD9558
3.3V
CMOS
TCXO
0.1F
09758-
134
Figure 34. System Clock Input (XOA, XOB) When Using a TCXO/OCXO with
3.3 V CMOS Output
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