Preliminary Information
SL1914
SL1914
Satellite Tuner Front End LNA with AGC
Preliminary Information
DS5137
Issue no 1.6
April 1999
Features
Ordering Information
q
Single chip solution for satellite tuner LNA and
AGC
Provides for 30 dB minimum AGC
Low DSB NF at maximum gain
High signal handling at minimum gain
Provides differential output drive
ESD protection (Normal ESD handling
procedures should be observed)
SL1914A/KG/MP1S
SL1914A/KG/MP1T
q
q
q
q
q
Description
The SL1914 is a wideband LNA with AGC designed
primarily for application in satellite tuner front ends,
offering high signal handling capability with low noise
figure compatible with most common tuner input
requirements.
The SL1914 is optimised to complement the SL1925, ZIF
quadrature downconverter, integrating all the active RF
circuitry within the tuner, in a highly compact, efficient
solution, and offering a full 1-45 MS/s tuner capability.
Applications
q
q
q
Satellite receiver systems
Data communications systems
Master Antennae Distribution Systems
.
6
RE INPUT
2
5
OUTPUT
OUTPUTB
AGC
4
1
8
3
Vcca
Vccb
Vee
Figure 1 Block Diagram
1