STV0297E STMicroelectronics, STV0297E Datasheet

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STV0297E

Manufacturer Part Number
STV0297E
Description
QAM demodulator IC
Manufacturer
STMicroelectronics
Datasheet

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Features
December 2006
For further information contact your local STMicroelectronics sales office.
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 I
Easy control and monitoring via 2-wire fast I2C
bus
2
C addresses
QAM demodulator IC with A/D converter
Rev 1
Applications
Additional I
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
Japan, Europe, Asia cable set-top boxes
Cable modems
Cable ready TV
Cable PC card
Cable network module
TQFP64 (10 x 10 x 1.40 mm)
2
C bus (I
2
C repeater) dedicated to
STV0297E
Data Brief
www.st.com
1/5
5

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STV0297E Summary of contents

Page 1

... 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 Rev 1 STV0297E Data Brief 2 C repeater) dedicated to 1/5 www.st.com 5 ...

Page 2

... IF sampling architecture, thus eliminating the need for external downconversion. The IF can MHz while the STV0297E allows the sampling clock to be freely selected from a given range (and meeting constraints derived from SAW filter and symbol rate characteristics) ...

Page 3

... STV0297E Figure 1. STV0297E block diagram IB_IN_P ADC IB_IN_M GPIO/AGC1 AGC and delayed AGC GPIO/AGC2 GPIO/LOCK GPIO/IT GPIO/SCLT GPIO/SDAT GPIO/CS0 GPIO/CS1 to all blocks NRESET Clock generator Initial demodulator Adjacent filter Symbol timing recovery Nyquist filter - Digital AGC Carrier recovery Phase noise tracker ...

Page 4

... Revision history 2 Revision history Table 1. Document revision history Date 19-Dec-2006 4/5 Revision 1 Initial release. STV0297E Changes ...

Page 5

... STV0297E Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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