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參數資料
| 型號： | BCM4201 |
| 文件頁數： | 1/2頁 |
| 文件大小： | 39K |
| 代理商： | BCM4201 |
B C M4 2 0 1 U N IV E R S A L S AT E L L IT E R E C E IV E R
The Broadcom BCM4201 is a universal QPSK
receiver for DIRECTV
, DVB and Digicipher II
digital satellite reception
Integrated satellite receiver
2-85 Mbps variable rate BPSK/OQPSK/QPSK receiver
Dual integrated 8-bit A/D converters
Dual square-root Nyquist matched filters (
α
=0.2-0.35)
All digital clock and carrier recovery
Integrated PLLs
DVB/DIRECTV/Digicipher II-compliant FEC decoder
64-state Viterbi decoder supports rates = 5/11, 1/2, 3/5,
2/3, 3/4, 4/5, 5/6, 6/7, 7/8
Programmable convolutional deinterleaver, I=12 or 13
with internal RAM
Reed-Solomon decoder: (n,k) = (204,188) or
(146,130): t=8
Seamless interface to BCM3440 CMOS satellite tuner
or direct IF input
I
2
C and SPI compatible microcontroller interface
IEEE 1149.1 (JTAG) test interface
80-pin PQFP pin package
3.3 Volt operation
S atellite IR D Bloc k Diagram
B C M 4 2 0 1 F E A T U R E S
S U M M A R Y O F B E N E F I T S
A universal digital transmission solution for DVB,
DSS and Digicipher II systems
An integrated solution enabling low complexity/low
cost digital satellite IRDs
Variable data rates support all satellite systems
worldwide
Integrated 8-bit A/D converters and PLL reduce
system manufacturing costs
Receives up to 85 Mbps for high-speed applications
Operates down to 1 MBaud with excellent adjacent
channel rejection characteristics due to 8-bit A/Ds
for low-speed applications such as SCPC
Specialized circuitry provided for cycle slip
minimization
On-chip BER tester to simplify system optimization
BCM7020
HDTV MPEG-2
Transport Demux,
Audio/ Video
Decoder and
Display Engine
BCM3440
SatelliteTuner
Memory
Conditional
Access
HD Video
Audio
L-band
Host CPU
BC M4201
DVB-S
Satellite Receiver
PRODUCT
Brief
Brief
B C M42 01
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