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參數(shù)資料
| 型號： | SSF-2L-4000 |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 92K |
| 代理商： | SSF-2L-4000 |
Ampl.
Balance
0 dB
0.25
0.5
0.75
1.0
2.0 dB
General Notes:
1. Single Sideband Modulators are integrated
networks composed of an in-phase power
divider, two double balanced mixers and two
90°quadrature hybrids. The primary function of
the circuit is to amplitude modulate a carrier such
that all the energy is in either the upper or lower
sideband.
2. These units are especially useful in modulator
applications where the desired and undesired RF
sidebands are so close in frequency that it is not
practical to use a bandpass filter to separate
them or where minimum group delay is required.
3. By vector subtraction, the undesired sideband
is canceled within the unit (internally terminated)
and the desired sideband is reinforced at the
output. The level of cancellation is usually
expressed as sideband rejection ratio in dB.
4. The schematic diagram shows how the
desired receiver signals from the two mixers are
combined in-phase at the
real (RF/LO)
port,
while the undesired spurious signals cancel each
other out. At the image port the reverse occurs
and the unwanted sideband signal is absorbed
by the load resistor. (Continued, next page)
SIDEBAND REJECTION
for a given Amplitude and Phase Balance
Phase Error (degrees)
0
0.5
1
1.5
2
2.5
3
50
45
40
35
30
25
20
15
Image
Rejection
Ratio
PRINCIPAL SPECIFICATIONS
Model
Number
SSF-2F-***/
SSF-2L****/ 1000 - 4000 MHz
A complete Model Number will be assigned with center frequency (***=f
o
)
and slash number, once a full specification is established with factory.
LO Center
Frequency, f
o
10 - 1000 MHz
Bandwidth,
MHz
10% of f
o
10% of f
o
Outline
Style
F
L
SINGLE SIDEBAND MODULATOR
SSF-2 Series
10 to 4000 MHz / Image Rejection to 30 dB / Internal Second Quad / High Sideband Rejection
For further iformatin contact
MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531
26Mar96
GENERAL SPECIFICATIONS
(when used as an Up Converter)
RF/IF Input Characteristics
Impedance:
VSWR:
RF Power Level:
IF Power Level:
IF Bandwidth:
RF Bandwidth:
Output Characteristics
Conversion Loss:
Sideband Suppression:
Operating Temperature:
50
nom.
1.5:1 max.
+10 dBm
0 dBm nom.
up to an octave
10%
9 dB max.
25 dB min.
-- 55 to +85°C
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