STV0910
Multi-standard advanced dual demodulator
for satellite digital TV broadcast set-top boxes
Data brief
Features
■
Dual multi-standard demodulation for
broadcast applications
– DVBS2 QPSK, 8PSK, CCM, VCM
– Legacy DVBS and DirecTV™ QPSK with
SuperFEC™ for enhanced reception
– Multi-tap equalizer for RF reflection
removal
– Wide range carrier frequency tracking loop
for offset recovery
Advanced version for DVBS2 16APSK,
32APSK, low QPSK code rates and ACM
Dual multi-standard decoding
– DVBS2 FEC and framing
– Up to 270 Mbit/s channel bit rate
– DVBS or DirecTV™ legacy
Interfaces
– Dual data to MPEG decoder
AGCRF1
AGCRF2
[IN1, IP1]
[QN1, QP1]
[IN2, IP2]
[QN2, QP2]
XTALI
XTALO
SCL, SDA
SDAT1, SCLT1
SDAT2, SCLT2
DISEQCIN1
DISEQCIN2
DISEQCOUT1
DISEQCOUT2
FSKRX_IN
FSKTX_OUT
GPIO[22:0]
TAP
D2[7:0]
CLKOUT2
STROUT2
DPN2
ERROR2
D1[7:0]
CLKOUT1
STROUT1
DPN1
ERROR1
JTAG
boundary
scan
FSK manager
Dual
10-bit ADC
Dual
10-bit ADC
Clock generation
Slave I
2
C
manager
ASIC
controller
and
power
management
– DVB common interface compliant
– I
2
C serial bus interface, including two
private repeaters for tuners
– JTAG interface for boundary scan
– 2 DiSEqC 2.x 22-kHz interfaces
– FSK interface
– Flexible GPIOs and interrupts
– Bit error rate monitoring and reporting
■
■
■
Technology
– Multi supply: 1.1-V core, 2.5-V analog,
3.3-V digital interfaces
– Fine-grained power management
– LFBGA-168 12x12 mm
2
package, RoHS
Description
The STV0910 is a cost effective,
high-performance dual demodulator/decoder for
advanced DVB satellite reception.
■
Multi-standard demodulators
IO and
RF AGC
Multi roll-off
Nyquist and
interpolation
filters
DVBS2
pilots
processor
and framing
Echo
concealment
equalizer
Demapper
GPIO
switch matrix
Lock indicator and
monitoring
Carrier
recovery
loop
Timing
recovery
loop
CNR
estimator
DiSEqC
TM
2.0
managers
Transport
stream
manager
FIFO Line 1
DVBS2 FECs
LDPC decoder
BCH decoder
DVBS2 de-framing
Legacy FECs
Viterbi decoder
Inner de-interleaver
Reed–Solomon decoder
Energy descrambler
FIFO Line 2
CRC checker
December 2012
Doc ID 024009 Rev 1
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www.st.com
4
For further information contact your local STMicroelectronics sales office.
Overview
STV0910
Overview
The STV0910 features a high-speed DVBS2 forward error corrector (FEC) which is
designed to handle up to 270 channel-Mbits/s at its input. To feed the FEC the STV0910
implements two identical demodulators, each capable of handling QPSK legacy and DVBS2
modulation for satellite broadcast services.
The STV0910 integrates all the features needed to provide a low cost dual broadcast
satellite receiver solution including: integrated crystal oscillator, dual DiSEqC controller, dual
tuner I
2
C repeater, FSK modem, ancillary DACs and ADCs and many unattributed general
purpose input output ports for peripheral control.
Advanced power saving features have been implemented, the LDPC stops once the
solution is sufficiently converged and the various blocks of the IC (demodulator, LDPC,
Legacy FEC, and so on) may be completely shut down if not required.
Features copied from 0913
Benefits
Multi-standard dual demodulation and decoding.
Allows an advanced, high-end set-top box or
receiver to be compatible with multiple markets
and legacy installations and so assists migration
to the advanced services.
For enhanced legacy QPSK performance.
Improves reception in poor RF group-delay and
reflection conditions (narrow transponders,
SMATV installations, poor connectors,
unterminated branched cables).
Allows interface to DVB-CI+ module for decoding
encrypted content.
Private repeater isolates the (sensitive) RF tuner
from potential digital noise from the host
processor.
Allows power to be reduced according to usage
and standby strategy.
To meet emerging energy standards for STBs.
Reduces BoM cost whilst maintaining flexibility in
antenna control.
Allows simple and thorough board testing in
production.
SuperFEC™
Multi-tap equalizer.
DVB common interface compliant.
I
2
C serial bus interface, including private repeater
for tuner.
Fine-grained power management.
Best-in-class, low-power standby mode.
I
ntegrated DiSEqC 2.x 22-kHz and FSK
interfaces.
JTAG interface for boundary scan.
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STV0910
Revision history
Revision history
Table 1.
Date
12-Dec-2012
Document revision history
Revision
1
Initial release.
Changes
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STV0910
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