參數(shù)資料
型號: MAX4090
廠商: Maxim Integrated Products, Inc.
英文描述: 3V/5V, 6dB Video Buffer with Sync-Tip Clamp and 150nA Shutdown Current
中文描述: 3V/5V、6dB視頻緩沖器,具有同步頭鉗位和150nA關(guān)斷電流
文件頁數(shù): 10/12頁
文件大?。?/td> 651K
代理商: MAX4090
M
3V/5V, 6dB Video Buffer with Sync-Tip Clamp
and 150nA Shutdown Current
10
______________________________________________________________________________________
0.1
1
10
100
FREQUENCY RESPONSE
FREQUENCY (MHz)
G
0
-60
-50
-40
-30
-20
-10
Figure 5. Frequency Response for R1 = R2 = 150
R2
150
R1
150
C1
120pF
C2
120pF
L1
4.7
μ
H
C3
6.8pF
C4
0.1
μ
F
R3
75
C5
22
μ
F
C6
22
μ
F
C7
1
μ
F
IN
OUT
GND
FB
SHDN
V
CC
V
CC
V
CC
V
OUT
4
2
3
5
6
1
VIDEO
CURRENT
DAC
R
IS
49.9
3-POLE RECONSTRUCTION LPF
MAX4090
Figure 6. Sag Correction Configuration
Layout and Power-Supply Bypassing
The MAX4090 operates from single 2.7V to 5.5V sup-
ply. Bypass the supply with a 0.1μF capacitor as close
to the pin as possible. Maxim recommends using
microstrip and stripline techniques to obtain full band-
width. To ensure that the PC board does not degrade
the device’s performance, design it for a frequency
greater than 1GHz. Pay careful attention to inputs and
outputs to avoid large parasitic capacitance. Whether
or not you use a constant-impedance board, observe
the following design guidelines:
Do not use wire-wrap boards; they are too inductive.
Do not use IC sockets; they increase parasitic
capacitance and inductance.
Use surface-mount instead of through-hole compo-
nents for better, high-frequency performance.
Use a PC board with at least two layers; it should be
as free from voids as possible.
Keep signal lines as short and as straight as possible.
Do not make 90° turns; round all corners.
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