BCM3517
®
ATSC/VSB DIGITAL CABLE READY DTV RECEIVER
FEATURES
•
Integrated VSB/QAM QAMLink
®
Receiver
•
12-bit A/D converter with internal AGC amplifier
•
Full equalizer architecture spans up to –35 to 49 µs delays
•
Direct IF sampled architecture reduces system cost
•
Single IF signal path for QAM/VSB to reduce system costs
•
ITU-T J.83 Annex A/B/C FEC modes
•
MPEG-2 transport output (serial/parallel)
•
All-digital clock and carrier recovery
•
Integrated PLLs to minimize external components
•
All acquisition times typically less than 50 ms
•
QPSK Out-of-Band Receiver
•
100–200-MHz receiver LO with input AGC and 6-bit A/D
•
Variable symbol rate QPSK receiver
•
Digital demodulator, Nyquist filters, tracking loops, and
four-tap adaptive equalizer
•
DVS-167 (Davic™)/DVS-178 (DigiCipherII™) FEC decoder
•
Integrated Acquisition Controller
SUMMARY OF BENEFITS
•
Complete DTV single chip receiver solution
•
FCC VSB and Digital Cable Ready
•
Superior performance under both static and dynamic multi-
path channel conditions
•
Direct interface to CMOS and discrete DTV tuners
•
Reduces system costs through direct IF sampling
•
Single IF path for QAM/VSB simplifies board design
•
Smart antenna support
•
Automatic NTSC co-channel interference and RFI rejection
filters
•
Integrated de-interleaver RAM for VSB FEC, and QAM for
modes up to J=4 reduces system costs
•
BSC master to control peripherals
•
EIA/CEA-909 Antenna Interface
•
144-pin LQFP Package
Digital Cable Ready DTV System Solution
Cable
ATSC
BCM3431
LNA
BCM3418
Tuner
MPEG Transport Serial/Parallel
BCM3517
Out-of-Band
VSB/QAM
OOB/CableCard™
Out-of-band Transport
EIA/CEA-909
Smart Antenna Interface
BOARDCOM [ Broadcom Corporation. ]
