BCM3517_06 Datasheet, PDF (1/2 Pages) Broadcom Corporation. – ATSC/VSB DIGITAL CABLE READY DTV RECEIVER

BCM3517
®
ATSC/VSB DIGITAL CABLE READY DTV RECEIVER
FEATURES
SUMMARY OF BENEFITS
• 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
• EIA/CEA-909 Antenna Interface
• 144-pin LQFP Package
• 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
Digital Cable Ready DTV System Solution
Cable
ATSC
BCM3431
LNA
BCM3418
Tuner
Out-of-Band
BCM3517
VSB/QAM
OOB/CableCard™
EIA/CEA-909
Smart Antenna Interface
MPEG Transport Serial/Parallel
Out-of-band Transport