廬
STV0297J
Universal digital cable demodulator
DATA BRIEF
Description
The
STV0297J
is a highly integrated device,
compliant with DVB-C/ITUJ83-A/B/C.
It provides a small footprint, low-power solution
enabling it to be easily integrated into broadcast
and interactive set-top boxes and network inteface
modules.
Furthermore, the
STV0297J
is the first QAM
demodulator with the integrated support for
transport stream multiplex frame required for
Japanese cable set-top boxes.
Application:
Advanced solution for very low-cost broadcast and interactive cable set-top boxes
DEMODULATOR
Quadrature
demodulation
Vin +
Vin -
ADC
Nyquist filtering AGC Derotator
Channel
equaliser
FEC
Signal
quality
estimator
AGC1
AGC2
WBAGC
&
delayed AGC
Symbol
timing
recovery
Carrier
recovery
FEC B
FEC A/C
Lock status
&
IRQ generator
SCL
SDA
I虜C
interface
to all registers
Trellis decoder
De-randomiser
De-interleaver
RS FEC decoder
MPEG sync
Shared RAM
TSMF function
I虜C
repeater
CLK
Output
formatter
Output stream
Bit error
rate
tester
Clock
generation
SCLT SDAT
XTAL
March 2004
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STMICROELECTRONICS
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