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FEC IC. STV0196B Datasheet







STV0196B IC. Datasheet pdf. Equivalent






Part

STV0196B

Description

QPSK/BPSK DEMODULATOR AND FEC IC

Manufacture

ST Microelectronics

Datasheet
Download STV0196B Datasheet


ST Microelectronics STV0196B

STV0196B; ( DataSheet : www.DataSheet4U.com ) STV 0196B QPSK/BPSK DEMODULATOR AND FEC IC . . . . . . . . . . . FRONT-END INTER FACE I AND Q 6 BITS DIGITAL INPUTS AT 2 Fs QPSK DEMODULATION (Two Modes : A and B) INPUT SYMBOL FREQUENCY (Fs) UP TO 3 0MSYMBOLS/S DIGITAL NYQUIST ROOT FILTER : ROLL-OFF VALUE OF 0.35 IN MODE A DIG ITAL CARRIER LOOP : - ON-CHIP DEROTATOR AND TRACKING LOOP.


ST Microelectronics STV0196B

- CARRIER OFFSET INDICATOR - LOCK DETEC TOR - C/N INDICATOR FOR DISH POSITIONIN G DIGITAL TIMING RECOVERY : - INTERNAL TIMING ERROR EVALUATION AND FILTER - OU TPUT CONTROL SIGNAL FOR A 2Fs EXTERNAL VCO OR VCXO DIGITAL AGC : - INTERNAL SI GNAL POWER ESTIMATION AND FILTER - OUTP UT CONTROL SIGNAL FOR AGC (1 BIT PULSE DENSITY MODULATION) DESCRIPTION Design ed for the fast gr owing direct broadcast satellite (DBS) d igital TV receiver market, the SGS-THOM SON STV0196B Digital Satellite Receiver Front-end integrates all the functions needed to demodulate incoming digital satellite TV signals from the tuner : N yquist filters, QPSK/BPSK demodulator, signal power estimator, automatic gain control, Viterbi decoder, deinterleaver , ReedSolomon deco.



Part

STV0196B

Description

QPSK/BPSK DEMODULATOR AND FEC IC

Manufacture

ST Microelectronics

Datasheet
Download STV0196B Datasheet




 STV0196B
( DataSheet : www.DataSheet4U.com )
STV0196B
QPSK/BPSK DEMODULATOR AND FEC IC
FRONT-END INTERFACE
. I AND Q 6 BITS DIGITAL INPUTS AT 2Fs
. QPSK DEMODULATION (Two Modes : A and B)
. INPUT SYMBOL FREQUENCY (Fs) UP TO
30MSYMBOLS/S
. DIGITAL NYQUIST ROOT FILTER :
ROLL-OFF VALUE OF 0.35 IN MODE A
. DIGITAL CARRIER LOOP :
- ON-CHIP DEROTATOR AND TRACKING
LOOP
- CARRIER OFFSET INDICATOR
. - LOCK DETECTOR
- C/N INDICATOR FOR DISH POSITIONING
DIGITAL TIMING RECOVERY :
- INTERNAL TIMING ERROR EVALUATION
AND FILTER
. - OUTPUT CONTROL SIGNAL FOR A 2Fs
EXTERNAL VCO OR VCXO
DIGITAL AGC :
- INTERNAL SIGNAL POWER ESTIMATION
AND FILTER
- OUTPUT CONTROL SIGNAL FOR AGC
(1 BIT PULSE DENSITY MODULATION)
.FORWARD ERROR CORRECTION
INNER DECODER :
- VITERBI SOFT DECODER FOR CONVOLU-
TIONAL CODES, CONSTRAINT LENGTH
M = 7, RATE 1/2
- PUNCTURED CODES 1/2, 2/3, 3/4, 5/6 AND
7/8 IN MODE A
. - AUTOMATIC OR MANUAL RATE AND
PHASE RECOGNITION
DEINTERLEAVER :
. - WORD SYNCHRO EXTRACTION
- CONVOLUTIVE DEINTERLEAVER
OUTER DECODER :
- IN MODE A : REED-SOLOMON DECODER
FOR 16 PARITY BYTES ; CORRECTION OF
UP TO 8 BYTE ERRORS
- BLOCK LENGTHS : 204 IN MODE A
- ENERGY DISPERSAL DESCRAMBLER
.CONTROL
I2C SERIAL BUS
DESCRIPTION
Designed for the fast growing direct broadcast
satellite (DBS) digital TV receiver market,
the SGS-THOMSON STV0196B Digital Satellite
Receiver Front-end integrates all the functions
needed to demodulate incoming digital satellite TV
signals from the tuner : Nyquist filters, QPSK/BPSK
demodulator, signal power estimator, automatic
gain control, Viterbi decoder, deinterleaver, Reed-
Solomon decoder and energy dispersal descram-
bler. This high level of integration greatly reduces
the package count and cost of a set top box. The
demodulator blocks are suitable for a wide range
of symbol rates while the advanced error correction
functions guaranteea low error rate even with small
receiver antennas or low power transmitters.
The STV0196B has multistandard capability.
It is fully compliant with the recently defined Digital
Video Broadcasting (DVB) standard (already
adopted by satellite TV operators in the USA,
Europe and Asia) and also compatible with the
main consumer digital satellite TV standards in use.
PQFP64
(Plastic Package)
ORDER CODE : STV0196B
September 1996
1/23
www.DataSheet4U.com





 STV0196B
STV0196B
PIN CONNECTIONS
TE S T
TE S T
VS S
VDD
TE S T
TE S T
VS S
VDD
VS S
VDD
VS S
VDD
TE S T
TE S T
TE S T
TE S T
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
1 48
2 47
3 46
4 45
5 44
6 43
7 42
8 41
9 40
10 39
11 38
12 37
13 36
14 35
15 34
16 33
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
M_C LK
MODE
CLKREC
VDD
AGC
VDD
VS S
VS S
S DA
SCL
VDD
VS S
NRES
D60
ERROR
D/P
2/23



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