BCM3520
ConnecTVTM Plug and Play DTV Receiver
Plug and Play DTV System Solution
Integrated VSB/QAM QAMLink receiver
- 12-bit A/D converter with internal AGC amplifier
- Full equalizer architecture spans up to 35 to 49 s delays
- Direct IF sampled architecture reduces system cost
- Single IF signal path for QAM/VSB/NTSC 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
- 100200 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
NTSC/PAL IF Demodulator
- Adjacent channel rejection filters
- Programmable digital audio trap filter
- Programmable group delay compensation filter
- Analog Composite Video Baseband Signal (CVBS) output
- FM demod output supports internal BTSC stereo decoder,
external BTSC stereo decoder (baseband or IF input), or
external Zweiton M decoder
Integrated acquisition controller
EIA/CEA-909 antenna interface
144-pin LQFP package
Complete DTV single chip receiver solution
FCC VSB and Plug and Play functionality
Superior performance under both static and dynamic multi-
path channel conditions
Integrated NTSC demodulator
BTSC decoder on chip
Direct interface to CMOS and discrete DTV tuners
Reduces system costs through direct IF sampling
Single IF path for QAM/VSB/NTSC 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
Analog stereo, mono, or SAP outputs
I2S or baseband multiplexed audio output
On-chip stereo audio DACs
BSC master to control peripherals
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
Smart Antenna Interface
EIA/CEA-909
Out-of-band Transport
Composite Video
MPEG Transport Serial/Parallel
Audio: I2S, L/R, multiplex baseband, IF audio
BCM3520
VSB/QAM
OOB/POD
BCM3419
Tuner
OOB
Tuner
LNA
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