Universal digital cable demodulator
®
STV0297J
Universal digital cable demodulator
DATA BRIEF
Description
The STV0297J is a highly integrated device, comp...
Description
®
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 I²C interface to all registers
Trellis decoder De-randomiser De-interleaver RS FEC decoder MPEG sync Shared RAM
TSMF function I²C repeater CLK Output formatter Output stream
Bit error rate tester
Clock generation SCLT SDAT XTAL
March 2004
1/2
STV0297J
Features
■ Integrated high performance ADC ■ Support for 4-, 16-, 32-, 64-, 128-, 256-point constellation variable symbol ■ Rate from 0.87 MBaud to 11.7 MBaud ■ Robust integrated adaptative equaliser ■ I²C serial bus and I²C repeater ■ DVB common parallel interface-compliant serial and parallel data output ■ Lock time <100ms ■ Low power consumption <0.5W typ. ■ TQFP 64 10x10 package
Ordering information
De...
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