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参数资料
| 型号： | SL2017 |
| 厂商： | Mitel Networks Corporation |
| 英文描述： | Full Band Satellite Tuner |
| 中文描述： | 全波段卫星调谐器 |
| 文件页数： | 3/17页 |
| 文件大小： | 190K |
| 代理商： | SL2017 |
3
SL2017
The SL2017 is a downconverter mixer with an output AGC
amplifier, which when used with appropriate external varactor
tuned oscillator performs the first IF tuning function for a full
band satellite receiver system. A block diagram is contained
in Fig. 2.
In application the RF input of the device is interfaced
through appropriate impedance matching to the first IF
signal, which is downlinked from the outdoor unit at typically
950-2150MHz. The RF input preamplifier of the device is
designed for low noise figure and for low distortion so
eliminating the requirement for RF AGC. The preamplifier
also provides gain to the mixer section and back isolation from
the local oscillator section.
The output of the preamplifier is fed to the mixer section
where the RF signal is mixed with the local oscillator
frequency, which is generated by an external oscillator.
Signals from the mixer are fed to the AGC IF amplifier,
which gives an overall conversion gain programmable from
-10 to +30dB. The output of this stage can be switched to one
of two outputs to facilitate IF processing.
FUNCTIONAL DESCRIPTION
Fig. 3 RF input matching network
Fig. 4 Typical external VCO application circuit
6.2nH
TO DEVICE
0.7pF
Fig. 5 LO buffer input impedance
0.5
0.2
1
0
+j0.2
+j0.5
+j1
+j2
+j5
2
5
–j5
–j2
–j1
–j0.5
–j0.2
FREQUENCY
MARKERS
A
T 1.3GHz,
1.8GHz, 2.3GHz
, 2..8GHz
S
11
:Z
0
= 50
NORMALISED
T
O 50
X
X
X
X
X
C20
C22
47pF
1nF
C10
5V
5V
C4
C5
1nF
Varactor Line
R1
R2
R3
270
C12
5V
DV1
IT379
C17
C18
NC
DV2
IT379
R6
TR2
BFR182
C21
C19
C52
L1
3
4
1
2
TL1
SNIFFER
R11
22
RF
RF B
C23
C24
100pF
RF INPUT
3
Vcc RF
4
LO
6
LO B
7
Vcc LO
5
Vee LO
8
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相关代理商/技术参数 |
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| SL201A102JAB | 功能描述:多层陶瓷电容器MLCC - 含引线 100volts 1000pF 5% C0G RoHS:否 制造商:AVX 电容:470 pF 容差:10 % 电压额定值:3 kV 端接类型:Radial 工作温度范围: 温度系数/代码:X7R 引线间隔:5.08 mm 产品:Automotive MLCCs 引线类型: |
| SL201A102JABTR1 | 功能描述:多层陶瓷电容器MLCC - 含引线 100volts 1000pF 5% C0G RoHS:否 制造商:AVX 电容:470 pF 容差:10 % 电压额定值:3 kV 端接类型:Radial 工作温度范围: 温度系数/代码:X7R 引线间隔:5.08 mm 产品:Automotive MLCCs 引线类型: |
| SL201A122JAB | 功能描述:多层陶瓷电容器MLCC - 含引线 100volts 1200pF 5% C0G RoHS:否 制造商:AVX 电容:470 pF 容差:10 % 电压额定值:3 kV 端接类型:Radial 工作温度范围: 温度系数/代码:X7R 引线间隔:5.08 mm 产品:Automotive MLCCs 引线类型: |
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