PS20251 Datasheet, PDF (2/25 Pages) List of Unclassifed Manufacturers – Dual COFDM demodulator with PID filters and MRC diversity

PS20251
1.2 Application
The PS20251 is designed to be used in a low-cost DVB-T receiver module. The system is shown in
Figure 1.
Figure 1 Dual DVB-T receiver module
I/F
TUNER 1
I/F
TUNER 2
8 MHz
SAW
6/7/8 MHz
IF AGC 1
8 MHz
SAW
6/7/8 MHz
IF AGC 2
2-wire BUS
PS20251
Muxed TS
Or
2 x serial/
parallel TS
MPEG
Figure 2 Block diagram
OFDM
ADC _DEMOD
OFDM
ADC _DEMOD
MRC
Diversity
FEC
Optional
TS _{PID FILTER}
FEC
Optional
TS _{PID FILTER}
Buffer
2-wire
SERIAL BUS
PLESSEY SEMICONDUCTORS LTD
TAMERTON ROAD | ROBOROUGH | PLYMOUTH | DEVON | PL6 7BQ
2