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参数资料
| 型号： | RC6334MT |
| 厂商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 中文描述： | 4 CHANNEL, VIDEO AMPLIFIER, PDSO14 |
| 封装： | SOIC-14 |
| 文件页数： | 4/9页 |
| 文件大小： | 69K |
| 代理商： | RC6334MT |
PRODUCT SPECIFICATION
RC6334
4
Test Circuit
65-3527-04
1/4
RC6334
10 pF
CL
75
W
RL
75
W
Video
Output
RF
250
W
250
W
Video
Input
RG
RS
RLOAD = RL + RS
Applications Discussion
Capacitive Load
The RC6334 can drive a capacitive load from 10 to over 50
pF. In back terminated video applications, bandwidth will
only be limited by the RC time constants of the external out-
put components. When driving a 75
W cable, place the 75W
source termination resistor as close to the amplier output as
possible.
DC Accuracy
Since the RC6334 is a voltage-feedback amplier, the invert-
ing and non-inverting inputs have similar impedances and
bias currents. To minimize offset voltage, match the source
resistances seen by inverting and non-inverting inputs.
Feedback Components
Because the RC6334 is a voltage-feedback amplier, it facil-
itates using reactive (capacitive and inductive) feedback
components for implementing lters, integrators, sample/
hold circuits, etc. The feedback network and the parasitic
capacitance at the inverting (summing junction) input create
a pole and affect the transfer function of the circuit. For sta-
ble operation, minimize the parasitic capacitance and equiva-
lent resistance of the components used in the feedback
circuit.
Circuit Board
High-frequency applications require good grounding, power
supply decoupling, low parasitic capacitance and inductance,
and good isolation between the inputs to minimize their
crosstalk. Avoid coupling from output to input to prevent
positive feedback.
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