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STV0288
DVB-S and DIRECTV QPSK receiver with autoscan feature
1/3
DATA BRIEF
STV0288DVB-S and DIRECTVTM QPSK receiver with autoscan feature
Rev. 1
DESCRIPTIONSTMicroelectronics introduces the STV0288, its
latest DVB and DIRECTVTM QPSK digital receiver,
which adds blind scan capability and DiSEqC 2.0 to
the industry-leading STV0299 and provides a cost
reduction path or new products.
The STV0288 contains two 8-bit analog-to-digital
converters for I-input and Q-input, a QPSK
demodulator, and a forward error correction (FEC)
unit having both an inner (Viterbi) and an outer
(Reed-Solomon) decoder. The device accepts
baseband differential signals as I and Q inputs.
High-performance clock generation is made from
an external reference which can vary from 4 to 30
MHz with respect to the analog to digital conversion
which is performed by two 8-bit ADC. The FEC unit
is compliant with the DIRECTVTM and DSS
specifications. Processing is fully digital and an
on-chip performant state-machine enables blind
search of satellite transponders without a-priori
knowledge of symbol rate. Thanks to this new
feature, the amount of software required for the
driver to operate the demodulator chip is drastically
reduced versus the previous generation.
The high sampling rate facilitates the
implementation of low-cost, direct conversion
tuners. The STV0288 is controlled via an I²C
interface.
The device operates up to 120 MHz and can
process variable modulation rates, up to 60 Msps.
The chip outputs MPEG transport streams and
interfaces seamlessly to the packet demultiplexers
embedded in the ST Omega chip family. Its low
power consumption, small package and low bill of
material makes it perfect for all satellite
applications.
Figure 1. Package
(TQFP64 with non exposed pas)
STV0288
FEATURES DVB-S / DIRECTVTM system Ultra fast channel blind acquisition for satellite
band scanning Up to 60 Msps operation DVB common interface compliant transport
stream (12 bit)I2 C serial bus interface, including private
repeater DiSEqCTM 2.0 22 kHz to 100 kHz interface Flexible GPIOs and interrupts Monitoring through I²C serial interface90 nm CMOS process Multi supply: 1.0 V core, 2.5 V analog,
3.3 V interfaces Power saving features 1V0 DC regulator integrated TQFP 64 package with no exposed paddle.
PART NUMBERING
Table 1. Order Codes
STV0288
REVISION HISTORY
Table 2. Revision history
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