參數(shù)資料
型號(hào)： AD9267EBZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 15/24頁(yè)
文件大?。?/td> 0K
描述： BOARD EVALUATION FOR AD9267
標(biāo)準(zhǔn)包裝： 1
ADC 的數(shù)量： 2
位數(shù)： 16
采樣率（每秒）： 640M
數(shù)據(jù)接口： 串行，SPI?
輸入范圍： 2 ~ 3 Vpp
在以下條件下的電源（標(biāo)準(zhǔn)）： 416mW @ 640MSPS
工作溫度： -40°C ~ 85°C
已用 IC / 零件： AD9267
已供物品： 板
AD9267
Rev. 0 | Page 22 of 24
Referring to Figure 46, the 3 dB cutoff frequency of the low-
pass Chebyshev II filter response resides at 15.75 MHz, and at
10 MHz, there is 0.43 dB of attenuation due to the sharp roll-off
of the filter. Table 15 summarizes the components and
manufacturers used to build the circuit.
Table 15. Chebyshev II Filter Components
Parameter
Value
Unit
Manufacturer
C1
39
pF
Murata GRM188 series, 0603
L1
180
nH
Coil Craft 0402AF, 2%
C2
390
pF
Murata GRM188 series, 0603
C3
220
pF
Murata GRM188 series, 0603
–20
0
2
4
6
8
1012
14161820
–18
–16
–14
–12
–10
–8
–6
–4
–2
0
–60
–50
–40
–30
–20
–10
0
10
20
30
40
GR
OU
P
D
E
L
A
Y
(
n
s
)
FREQUENCY (MHz)
AM
P
L
IT
UDE
(
d
B)
07
773
-05
0
Figure 46. Low-Pass Chebyshev II Filter Response
In addition to matching the profile of Figure 44, group delay
and channel matching are important filter design criteria. Low
tolerance components are highly recommended for improved
channel matching, which translates to minimal degradation in
image rejection for quadrature systems.
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