bcm3440 Broadcom Corp., bcm3440 Datasheet

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bcm3440

Manufacturer Part Number
bcm3440
Description
Bcm3440 - Digital Satellite Receiver
Manufacturer
Broadcom Corp.
Datasheet

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Direct conversion architecture in standard CMOS process
Supports QPSK and 8PSK demodulation
Input frequency range: 950 to 2150 MHz
Supports 1 to 45 Mbaud data rates
Input signal: -25 to -70 dBm
Baseband in-phase and quadrature outputs
Programmable bandwidth I/Q baseband filters
Integrated LO with on-chip VCO and PLL
Integrated LNA with RF AGC
On-chip IF AGC
Two wire I2C host interface
Differential signals for high noise immunity
Uses a low-cost crystal
3.3V operation
48-pin TQFP
BCM3440 DIRECT CONVERSION SATELLITE TUNER
L-band
F E A T U R E S
BCM3440 Tuner Application Example (Satellite Set-Top Box)
BCM3440
SatelliteTuner
®
Q
I
Advanced Modulation
Satellite Receiver
BCM4500
BCM3440
Designed to work with the BCM4500 and BCM4201 satellite
receivers
Operates across entire satellite L-band frequency range
Extremely low phase noise for operation with 8PSK
modulation systems
Highly integrated solution minimizes design time and system
cost
Operates using single 3.3V supply to eliminate the need for 5V
Complete reference design available to minimize customer RF
expertise requirement
S U M M A R Y O F B E N E F I T S
Memory
Transport Demux,
HDTV MPEG-2
Display Engine
Audio/ Video
Decoder and
BCM7020
Host CPU
Conditional
Access
HD Video
Audio

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bcm3440 Summary of contents

Page 1

... Differential signals for high noise immunity • Uses a low-cost crystal • 3.3V operation • 48-pin TQFP BCM3440 Tuner Application Example (Satellite Set-Top Box) BCM3440 SatelliteTuner L-band BCM3440 • Designed to work with the BCM4500 and BCM4201 satellite receivers • ...

Page 2

... The chip has integrated LNA, VCO and PLL and has both RF and IF AGCs. The BCM3440 uses a single 16-MHz crystal that it shares with the BCM4500 for reduced system cost. The BCM3440 is a single-chip satellite tuner implemented in low-cost CMOS technology ...

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