Stv0360 - Toshiba 27WLT56B Service Manual

STV0360

13.9.
13.9.1. General Description
The STV0360 is a single-chip COFDM (coded orthogonal frequency division multiplex) demodulator
that performs IF to MPEG-2 block processing of OFDM carriers. It is intended for digital terrestrial
receivers for compressed video, sound and data services.
The chip implements all the functions from the tuner IF output up to the MPEG-2 transport stream input.
The STV0360 is fully compliant with the DVB-T specification (ETS 300 744) and handles 2K/8K modes.
The STV0360 integrates an A/D converter that delivers the required performance to handle up to 64
QAM carriers in a direct IF sampling architecture, thus eliminating the need for an external down-
converter. The chip also integrates an internal programmable gain amplifier (PGA) to compensate for
SAW filter level degradation, thus eliminating the need for external IF amplifiers. A 10-bit ADC, intended
for RF signal strength indication, eliminates the need for external components when using wide-band
AGC tuners.
In addition to all the demodulation and FEC (forward error correction) functions required for recovery of
the QAM modulated bit streams with very low BER, it also includes several features that give easy and
immediate access to various quality monitoring parameters or lock status. The STV0360 also provides
output such as delayed AGC or noise-free I²C bus dedicated to tuner control, which facilitates the
design of high quality integrated receiver decoders.
The STV0360 outputs error-corrected MPEG-2 transport streams and complies with the DVB common
interface format, with programmable data clock frequency. It also interfaces seamlessly with the packet
de-multiplexers embedded in the STi55xx Omega family of single-chip decoders.
13.9.2. Features
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Decodes DVB-T (ETS300744) and NorDig II
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TPS decoded or automatic FEC mode detection
•
Embeds PGA for IF level adaptation
•
Generates system clock on-chip from 20 to 27-MHz crystal quartz
•
Four I²C addresses available
•
Low power consumption (< 500 mW)
•
Small footprint: TQFP64 (10 X 10 mm)
•
1.8 V operation, CMOS technology
13.9.3. Pin Description
27" TFT TV Service Manual
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05/09/2005