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