VESTEL MB37, Service Manual

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8.2 Features
 Compatible with direct conversion (ZIF) and IF tuners
o
Wide range carrier tracking loop for offset recovery
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Dual analog to digital conversion for IQ baseband interface
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Signal strength indicator dedicated ADC
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Dual ΣΔ digital split AGC for RF and BB
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Flexible clock generation to operate with 4 MHz to 27 MHz external reference

Channel management
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NorDig Unified Specification (v1.0.2) capable
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Dynamic fading compatible
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Urban environment compatible
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Channel reception quality indicator
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Out of guard interval echoes compatible
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Impulsive noise rejection capable
o
Outstanding adjacent and co-channel rejection capability with integrated
channel filters
 Digital carrier, timing and symbol recovery loops
 Decoding
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2K, 4K, 8K FFT length
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6, 7 and 8 MHz channels bandwidth
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1/4, 1/8, 1/16, 1/32 guard interval length
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QPSK - 16 QAM - 64 QAM modulations
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Hierarchical capability
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TPS decoding
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Viterbi soft decoder rate 1/2
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Puncture rates are 1/2, 2/3, 3/4, 5/6, 7/8
o
Outer Reed-Solomon decoder as per DVB-T system
o
Energy dispersal descrambler
 Technology
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Low power CMOS process (90nm)
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Multi supply: 1.0 V core, 2.5 V analog, 3.3 V digital interface
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TQFP64 7x7x1.0 mm
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Power consumption: 350 mW (typ),
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Standby < 80 mW