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參數(shù)資料
| 型號： | SHC615AU |
| 英文描述： | Wide-Bandwidth, DC RESTORATION CIRCUIT |
| 中文描述： | 寬帶寬，直流修復(fù)電路 |
| 文件頁數(shù)： | 17/19頁 |
| 文件大?。?/td> | 299K |
| 代理商： | SHC615AU |
17
SHC615
Make short, low-inductance traces. The entire physical
circuit should be as small as possible.
Use a low-impedance ground plane on the component side
to ensure that a low-impedance ground is available through-
out the layout.
Do not extend the ground plane under high-impedance
nodes sensitive to stray capacitances such as the amplifier’s
input terminals.
Sockets are not recommended since they add significant
inductance and parasitic capacitance. If sockets are re-
quired, use zero-profile sockets.
Use low-inductance, surface-mount components. Surface-
mount components offer the best AC performance.
A resistor of 100 to 250
in series with the high-imped-
ance inputs is recommended to reduce peaking.
Plug-in prototype boards and wire-wrap boards will not
function well. A clean layout using RF techniques is
essential—there are no shortcuts.
Terminate transmission line loads. Unterminated lines,
such as box cables, can appear to the amplifier to be a
capacitive or inductive load. By terminating a transmission
line with its characteristic impedance, the amplifier’s load
then appears purely resistive.
Protect the hold control input with an external diode if
necessary.
NOTE: (1)
±
V
CC
=
±
6V absolute max.
FIGURE 6. Basic Connections
SOTA
OTA
R
Q
GND
9
3
4
Switching Stage
Sampling Comparator
(SC)
7
10
11
S/H In+
S/H In–
Hold
Control
C
HOLD
Base
R
(25
to 200
)
2
12
Biasing
5
13
+V
CC
–V
–5V
(1)
+5V
(1)
1
2.2μF
10nF
470pF
10nF
2.2μF
470pF
Solid Tanatlum
+
+
I
Q
Adjust
Collector
Emitter
R
Q
= 300
sets roughly
I
Q
= ±14mA
(20
to
200
)
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