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Rainbow-electronics MAX2108 Manual de usuario

Busca en linea o descarga Manual de usuario para Hardware Rainbow-electronics MAX2108. Rainbow Electronics MAX2108 User Manual Manual de usuario

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For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
General Description
The MAX2108 is a low-cost direct-conversion tuner IC
designed for use in digital direct-broadcast satellite
(DBS) television set-top box units and microwave links.
Its direct-conversion architecture reduces system cost
compared to devices with IF-based architectures.
The MAX2108 directly tunes L-band signals to base-
band using a broadband I/Q downconverter. The oper-
ating frequency range spans from 950MHz to
2150MHz. The IC includes a low-noise amplifier (LNA)
with gain control, two downconverter mixers with output
buffers, a 90° quadrature generator, and a divide-by
32/33 prescaler.
Applications
DirecTV, PrimeStar, EchoStar DBS Tuners
DVB-Compliant DBS Tuners
Cellular Base Stations
Wireless Local Loop
Broadband Systems
LMDS
Microwave Links
Features
♦ Low-Cost Architecture
♦ Operates from Single +5V Supply
♦ On-Chip Quadrature Generator, Dual-Modulus
Prescaler (/32, /33)
♦ Input Levels: -20dBm to -70dBm per Carrier
♦ Over 50dB RF Gain-Control Range
♦ 10dB Noise Figure at Maximum Gain
♦ +8dBm IIP3 at Minimum Gain
MAX2108
Direct-Conversion Tuner IC
________________________________________________________________
Maxim Integrated Products
1
PS_SEL GC GND GND RFIN
RFIN
GND IOUT
IOUT
PSOUT
V
CC
V
CC
V
CC
V
CC
PSOUT GND GND N.C. LO LO QOUT QOUT
N.C. GND
1211109 876543 21
13 14 15 16 17 18 19 20 21 22 23 24
MAX2108
/32
/33
90
Q
0
I
Functional Diagram
19-1449; Rev 0; 4/99
PART
MAX2108CEG 0°C to +70°C
TEMP. RANGE PIN-PACKAGE
24 QSOP
Ordering Information
Pin Configuration appears at end of data sheet.
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Indice de contenidos

Pagina 1 - Direct-Conversion Tuner IC

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.For small orders, phone 1-800-835-8769.General Descript

Pagina 2

MAX2108Direct-Conversion Tuner IC10 ______________________________________________________________________________________2423222120191817123456781615

Pagina 3

MAX2108Direct-Conversion Tuner IC______________________________________________________________________________________ 11242322212019181712345678QOUT

Pagina 4

MAX2108Direct-Conversion Tuner ICMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product

Pagina 5

MAX2108Direct-Conversion Tuner IC2 _______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSDC E

Pagina 6

MAX2108Direct-Conversion Tuner IC_______________________________________________________________________________________ 3AC ELECTRICAL CHARACTERISTIC

Pagina 7

MAX2108Direct-Conversion Tuner IC4 _______________________________________________________________________________________Typical Operating Characteri

Pagina 8

MAX2108Direct-Conversion Tuner IC_______________________________________________________________________________________ 5NAME FUNCTION1IOUTInverting

Pagina 9

MAX2108Direct-Conversion Tuner IC6 ______________________________________________________________________________________________________Detailed Desc

Pagina 10

MAX2108Direct-Conversion Tuner IC_______________________________________________________________________________________ 7Power-Supply SequencingThe M

Pagina 11

MAX2108Direct-Conversion Tuner IC8 _______________________________________________________________________________________RSC1 C2 C3 C4RLADCSDSPMATCHE

Pagina 12

MAX2108Direct-Conversion Tuner IC_______________________________________________________________________________________ 9MHzDESIREDCHANNEL(20Msps)dBc

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