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BCM3440 Datasheet

  • BCM3440

  • DIRECT CONVERSION SATELLITE TUNER

  • 2頁

  • ETC

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BCM3440
PRODUCT
廬
Brief
O F
B E N E F I T S
BCM3440 DIRECT CONVERSION SATELLITE TUNER
B C M 3 4 4 0
F E AT U R E S
S U M M A R Y
鈥?/div>
Direct conversion architecture in standard
CMOS process
鈥?/div>
Supports QPSK and 8PSK demodulation
鈥?/div>
Input frequency range: 950 to 2150 MHz
鈥?/div>
Supports 1 to 45 Mbaud data rates
鈥?/div>
Input signal: -25 to -70 dBm
鈥?/div>
Baseband in-phase and quadrature outputs
鈥?/div>
Programmable bandwidth I/Q baseband filters
鈥?/div>
Integrated LO with on-chip VCO and PLL
鈥?/div>
Integrated LNA with RF AGC
鈥?/div>
On-chip IF AGC
鈥?/div>
Two wire I C host interface
鈥?/div>
Differential signals for high noise immunity
鈥?/div>
Uses a low-cost crystal
鈥?/div>
3.3V operation
鈥?/div>
48-pin TQFP
2
鈥?/div>
Designed to work with the BCM4500 and BCM4201
satellite receivers
鈥?/div>
Operates across entire satellite L-band
frequency range
鈥?/div>
Extremely low phase noise for operation with 8PSK
modulation systems
鈥?/div>
Highly integrated solution minimizes design time and
system cost
鈥?/div>
Operates using single 3.3V supply to eliminate the need
for 5V
鈥?/div>
Complete reference design available to minimize
customer RF expertise requirement
BCM3440 Tuner Application Example (Satellite Set-Top Box)
Memory
Conditional
Access
BCM7020
HD Video
Audio
BCM3440
SatelliteTuner
I
Q
BCM4500
Advanced Modulation
Satellite Receiver
L-band
HDTV MPEG-2
Transport Demux,
Audio/ Video
Decoder and
Display Engine
Host CPU

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