BCM3440 Datasheet, PDF (1/2 Pages) Broadcom Corporation. – DIRECT CONVERSION SATELLITE TUNER

BCM3440
PRODUCT
Brief
®
BCM3440 DIRECT CONVERSION SATELLITE TUNER
BCM3440 FEATURES
• 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}
SUMMARY OF BENEFITS
• 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
L-band
BCM3440 Tuner Application Example (Satellite Set-Top Box)
BCM3440 ^I
SatelliteTuner
Q
BCM4500
Advanced Modulation
Satellite Receiver
Memory
Conditional
Access
BCM7020
HDTV MPEG-2
Transport Demux,
Audio/ Video
Decoder and
Display Engine
HD Video
Audio
Host CPU