STV0288
DVB-S and DIRECTVTM QPSK receiver with autoscan feature
DATA BRIEF
DESCRIPTION STMicroelectronics introduces the STV0288, its latest DVB and DIRECTV TM 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)
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Rev. 1 1/3
STV0288
Figure 2. STV0288
DRAM
IR RX/TX
STV0288 and STB6000 tuner
transport stream in STM5105
Audio buffer Video buffer
Smart card
FEATURES TM n DVB-S / DIRECTV system
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NOR Flash
DiSEqCTM 2.0 22 kHz to 100 kHz interface Flexible GPIOs and interrupts Monitoring through I²C serial interface 90 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.
Ultra fast channel blind acquisition for satellite band scanning Up to 60 Msps operation DVB common interface compliant transport stream (12 bit) I2C serial bus interface, including private repeater
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PAR T NUMBERING Table 1. Order Codes
Part Number
STV0288 STV0288-NIM
Description
Silicon receiver Evaluation board
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ST V0288
REVISION HISTORY Table 2. Revision history
Date July-2005 Revision 1 First issue Description of changes
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners 2005 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com
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