MITEL SL1914, SL1914AKG, SL1914AMP1S, SL1914AMP1T, SL1914KG Datasheet

1

Preliminary Information SL1914

SL1914

Satellite Tuner Front End LNA with AGC

Preliminary Information

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.

.

Features

● 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)

Applications

● Satellite receiver systems

● Data communications systems

● Master Antennae Distribution Systems

DS5137 Issue no 1.6 April 1999

Ordering Information

SL1914A/KG/MP1S
SL1914A/KG/MP1T

Figure 1 Block Diagram

RE INPUT

AGC

OUTPUT
OUTPUTB

Vcca
Vccb
Vee

2

4

6

5

1
8

3

2

SL1914 Preliminary Information

Figure 2 Pin Connections

MP8

8

SPOT

REF.

Vcca
RFIP
Vee
AGC

Vccb
N/C
OP
OPB

Quick Reference Data

Characteristic Units

Operating frequency 950 - 2150 MHz
Input DSB NF at max gain 8 dB

Maximum conversion gain 20 dB
Minimum conversion gain -10 dB
IPIP3

2T

117 dBµV

IPIP2

2T

127 dBµV

Functional Description

The SL1914 is a bipolar, low noise AGC amplifier
designed primarily for application in satellite tuner front
ends. It contains a low noise input amplifier, an AGC
stage with a minimum of 30dB of gain control and a 75
Ohm output drive. It replaces all active circuitry in
conventional architectures.

.

The typical key performance numbers under nominal
load ambient and supply conditions are contained in
table headed Quick Reference Data.