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参数资料
| 型号： | MPT1416VA |
| 元件分类： | 衰减器 |
| 英文描述： | RF/MICROWAVE VARIABLE ATTENUATOR |
| 文件页数： | 1/2页 |
| 文件大小： | 15K |
| 代理商： | MPT1416VA |
MPT1416VA Revised 10/23/00
Page# 23
ADVANCED DATA
SHEET
MPT 1416VA VECTOR ATTENUATOR
FEATURES
FREQUENCY RANGE OF 1400 MHz TO 1600 MHz
SURFACE-MOUNT PACKAGE
DESCRIPTIONS
MPT 1416VA is a vector attenuator in a 18-
pin surface mount package of 1.0” X 0.9.” It is
functionally equivalent to the combination of
an endless phase shifter and attenuator, for use
at 1400 MHz to 1600 MHz. MPT 1416VA may be
used anywhere it is necessary to control the
amplitude and phase of a signal without
introducing intermodulation distortion,
dispersion, or variation in group delay.
While MPT 1416VA is not architecturally
similar to the combination of a phase shifter
and attenuator, it serves the same purpose
and has several other advantages. For
example, there is no limitation on phase
change. With negligible delay variation, phase
can increase or decrease continuously without
reaching an end point.
The 1416VA can also transition directly from
any attenuation and phase to any other
attenuation and phase. For example,
minimum attenuation at 0
° to minimum
attenuation at 180
°, without a continuous
phase transition from 0
° to 90° to 180°.
These qualities make the 1416VA particularly
useful in signal cancellation systems where the
phase and amplitude of one signal must be
adjusted so that it can be completely cancel
another signal of arbitrary amplitude and
phase.
Typical applications include gain and
phase adjustment in the cancellation loops of
feed - forward amplifiers and in RF predistorters.
Application notes are available describing
their use in these types of systems.
Input
Output
Ι
1
Q
1
1416VA Block Diagram
0
°
90
°
0
°
0
°
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