LC-32LE40E-LC-42LE40E
55
2.3 U1011(MT5135AE/A)
General Description
MT5135AE is an integrated channel demodulator for European TV solutions. It provides high performance DVB-T and DVB-C demodulation function with
low overall costs. The integrated SAW filter technology eliminates the need for on-board SAW filters and VGAs, resulting in a lower BOM cost and a more
compact PCB design. The integrated CI+ controller and interface also reduce the complexity of TS routing.
The integrated DVB-T and DVB-C demodulators fully comply with the related ETSI and ITU standards. They meet performance requirements of NorDig
Unified, C-Book, and D-Book. A high-performance analog front-end, consisting of a PGA and a 10-bit ADC preceding the digital data path, can accept the
IF or low-IF signal inputs directly from RF can tuners or silicon tuners. The digital data path realizes a set of refined algorithms to achieve quality
demodulation under varying channel conditions and impairments. An on-chip micro-processor controls the robust acquisition flow for both DVB-T and
DVB-C demodulators, and thus enables MT5135AE to successfully lock on the desired TV channel with a high carrier frequency offset (CFO) or timing
frequency offset (TFO). In addition, proprietary mechanisms are incorporated to speed up the channel scan. They include the automatic mode
detection for DVB-T, and the automatic symbol rate and modulation type detection for DVB-C.
With MT5135AE, the cost and system complexity of a TV can be significantly reduced. Taking advantage of the integrated SAW filter technology, the SAW
filter together with the accompanying VGA, conventionally found on board or inside a NIM, can be spared. This solution calls for a simple RF tuner directly
feeding the IF inputs of MT5135AE, leaving a lean PCB design with a smaller component count and a lower BOM cost as well. Furthermore, MT5135AE
provides an integrated CI+ controller with the complete complementing interfaces among the CAM, the main decoder chip, and an additional demodulator
chip. When not in use, these interfaces can be set to hi-impedance mode to support multiple demodulators or multiple CAMs operation. With the highly
flexible CI+ controller and interfaces, MT5135AE effectively addresses the TS routing complexity for the application scenarios such as simultaneous PVR
recording and playback, or time-shift playback. The need for on-board TS multiplexers is eliminated and the PCB layout can be kept as compact as
possible.
Features
Integrated DVB-T and DVB-C demodulators
Integrated CI/CI+ controller and interface
On-chip integrated SAW filter function for lower BOM cost
On-chip high-performance PGA and 10-bit ADC accepting IF or low-IF inputs
RSSI measurement
Independent RF and IF AGC controls
On-chip micro-processor for acquisition control
Good CAM compatibility
One parallel or serial TS interface accepting outputs from other demodulator chips
TS interfaces supporting instant playback and PVR recording and playback
SPI for host communication
On-chip SIF master for tuner control
Low power consumption: less than 200 mW
LQFP-128 14 x 14 mm2 package
DVB-T Demodulator Features
ETSI 300 744 & NorDig Unified compliant
Excellent performance for SFN & Indoor reception
Supporting 2k and 8k modes
Supporting QPSK,16-, and 64-QAM constellations
Supporting 1/4, 1/8, 1/16, and 1/32 guard Intervals
Supporting hierarchical & non-hierarchical modes
Accepting 6,7,8 MHz channel bandwidth
Automatic mode detection
Full-digital timing/frequency with wide acquisition range
Support triple offset
Excellent adjacent channel interference (ACI) rejection capability
Excellent co-channel interference (CCI) rejection capability
Fast channel lock time
Содержание AQUOS LC-42LE40E
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