PS20250 Datasheet, PDF (1/23 Pages) List of Unclassifed Manufacturers – Dual COFDM demodulator with PID filters

PS20250
Dual COFDM demodulator with PID filters
Data Sheet
1 System
Data Sheet 292108 issue 1
1.1 Features
Ordering Information
PS20250C1L1A5 80 Pin LQFP* Trays
• Dual Channel DVB-T Demodulator optimised for:
*Pb Free Matte Tin
o Watch and Record applications
-10°C to +80°C
• Dual Parallel/serial MPEG stream output
• Optional PID Filtered transport stream multiplexing to one MPEG port Nordig Unified and ETSI 300
744 compliant
• Superior Single Frequency Network performance Unique active impulse-noise filtering
• Single SAW operation on 6, 7 & 8 MHz OFDM
• RF level detect ADC on-chip to indicate signal power for each channel
• Excellent performance with any echo profile: pre, post, inside or outside the guard interval Automatic
co-channel and adjacent-channel interference suppression
• Fast AGC and good Doppler performance for portable applications
• Large frequency capture range to enable channel acquisition with triple offsets IF sampling at 36.17,
43.5 or 5 - 10 MHz from a single crystal frequency Channel bandwidth of 6, 7 & 8 MHz
• Blind acquisition capability (including 2K/8K mode detect) Automatic spectral inversion detection
• Fast auto-scan and acquisition technology Very low software overhead
• Access to channel SNR, pre- and post-Viterbi bit error rates On-chip PLL clock generation using a single
20.48MHz crystal
• Hardware MPEG2 PID filters (enables low bandwidth operation, can be turned off) 8 general purpose
ports, 2 dedicated and 6 shared function
• 3.3/1.2V operation 80 pin LQFP
• Low external component count
Applications
• Terrestrial PC applications
• Digital terrestrial TV set-top boxes
• Digital terrestrial integrated televisions
• Portable TV receivers
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