Description
●The STV0297E is a complete single-chip QAM (quadrature amplitude modulation) demodulation and FEC (forward error correction) solution that performs sampled IF to transport stream (MPEG-2 or MPEG-4) block processing of QAM signals. It is intended for the digital transmission of compressed television, sound, and data services over cable.
●Features
●■ Decodes ITU-T J.83-Annexes A/C and DVB-C bit streams
●■ Processes Japanese transport stream multiplex frame (TSMF)
●■ High-performance integrated A/D converter suitable for direct IF architecture in all QAM (quadrature amplitude modulation) modes
●■ Supports 16, 32, 64, 128 and 256 point constellations
●■ Small footprint package: (10 x 10 mm²)
●■ Very low power consumption
●■ Full digital demodulation
●■ Variable symbol rates
●■ Front derotator for better low symbol rate performance and relaxed tuner constraints
●■ Integrated matched filtering
●■ Robust integrated adaptive pre and post equalizer
●■ On-chip FEC A/C with ability to bypass individual blocks
●■ 10 programmable GPIO
●■ Two AGC outputs suitable for delayed AGC applications (sigma-delta outputs)
●■ Integrated signal quality monitors, plus lock indicator and interrupt function mapped to GPIO pin
●■ Improved signal acquisition
●■ System clock generated on-chip from quartz crystal
●■ Low frequency crystal operations 4, 16, 25 - 30 MHz
●■ 4 I2C addresses
●■ Easy control and monitoring via 2-wire fast I2C bus
●■ Additional I2C bus (I2C repeater) dedicated to tuner control for minimum tuner disturbance
●■ Programmable clock derived from system clock and available for external use
●■ Parallel and serial output interfaces, with DVB common interface support
●■ On chip voltage regulator
●■ CMOS technology, 1.0 V operation
●Applications
●■ Japan, Europe, Asia cable set-top boxes
●■ Cable modems
●■ Cable ready TV
●■ Cable PC card
●■ Cable network module
