Data Brief

For further information contact your local STMicroelectronics sales office.

August 2008

Rev 1

1/5

5

STV0903

Multi-standard advanced demodulator

for satellite digital TV and data services set-top boxes

Features

– DVBS2 QPSK and 8PSK

– Digital Nyquist root filter with 0.20, 0.25,

0.35 excess bandwidth factors

– Up to 95 mega channel bits per second

(Mcbps) at input to DVBS2 FEC

input to legacy FEC

– Dedicated 27 MHz clock generation for

back-end decoder

– JTAG interface - boundary scan

– GPIOs and interrupt lines

– FSK modem

– 90 nm CMOS process

– Power saving features

– LQFP-128-EP 14x14, 0.4 mm pitch, RoHS.

Description

STV0903 is a high performance satellite

demodulator capable of handling DVB-S,

8PSK) constant coding and modulation signals for

satellite broadcast.

AGCRF

[IN, IP]

[QN, QP]

XTALI

XTALO

SCL, SDA

SDAT, SCLT

DISEQCIN

DISEQCOUT

FSKRX_IN

TAP

GPIO[13:1]

D[7:0]

CLKOUT

STROUT

DPN

ERROR

Dual

8-bit ADC

manager

manager

FSK manager

GPIO

switch matrix

JTAG

boundary

scan

Clock generation

ASIC controller

power management

and

Multi-standard demodulator

IO and

RF AGC

Multi roll-off

nyquist and

interpolation

filters

DVBS2

pilots

processor

and framing

Echo

concealment

equalizer

Demapper

Carrier

recovery

loop

Timing

recovery

loop

CNR

estimator

Lock indicator and

monitoring

DVBS2 FEC

Legacy FEC

Viterbi decoder

Inner de-interleaver

Reed-solomon decoder

Energy descrambler

LDPC decoder

BCH decoder

DVBS2 de-framing

CRC checker

Transport

stream

manager

FSKRX_OUT

FIFO Line 1

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