22
The BCM3556 is available in several package options: WXGA and FHD, PIP and non-PIP, or
MPEG-only and combined AVC/MPEG-2.
Block Diagramm:
TECHNISCHER KUNDENDIENST
8 SATELLITE RECEIVER (BCM4505)
The BCM4505 is a fully integrated satellite receiver single-chip solution targeted at
multituner advanced modulation satellite receiver systems and ideally suited for new
generation satellite receivers and integrated multifunction Home Media Centers. The
BCM4505 integrates a CMOS tuner and advanced modulation decoder supporting
DVB-S2
Broadcast, DVB-S, DIRECTV, and 8PSK Turbo applications. The highly integrated
tuner
section is based on existing volume-production Broadcom technologies and a
directconversion
technology to reduce external components and increase performance.The
BCM4505 is designed to support the full 1-45 Msps DVB operating range with support
for
250 to 2150 MHz input frequencies. It contains two 8-bit A/D converters, all-digital
variable-
rate QPSK/8PSK receivers, an advanced modulation LDPC/BCH and Turbo FEC
decoder,
and a DVB-S compliant FEC decoder. All required RAM is integrated and all required
clocks
are generated on-chip from a single reference crystal. The baseband IQ analog
waveforms
from the tuner section are sampled by the integrated 8-bit A/D converters and
resampled by
the integrated interpolative digital filter banks.
Optimized soft decisions are then fed into either a DVB-S-compliant FEC decoder, or an
advanced-modulation DVB-S2 LDPC/BCH or Turbo decoder. The final error-corrected
output is delivered in MPEG-2 transport format. The output clock is generated by an on-
chip
Loewe Opta GmbH
96317 Kronach, Industriestr. 11
Telefon (0 92 61) 99-0
Telefax (0 92 61) 99-730
e-mail: hotel-service@loewe.de
www
.loewe.de
Seite 10 von 24 Stand: 26.01.2012
SATELLITE RECEIVER (BCM4505)
The BCM4505 is a fully integrated satellite receiver single-chip solution targeted at multituner
advanced modulation satellite receiver systems and ideally suited for new generation satellite
receivers and integrated multifunction Home Media Centers. The BCM4505 integrates a CMOS
tuner and advanced modulation decoder supporting DVB-S2 Broadcast, DVB-S, DIRECTV, and
8PSK Turbo applications. The highly integrated tuner section is based on existing volume-pro-
duction Broadcom technologies and a directconversion technology to reduce external compo-
nents and increase performance.The BCM4505 is designed to support the full 1-45 Msps DVB
operating range with support for 250 to 2150 MHz input frequencies. It contains two 8-bit A/D
converters, all-digital variable rate QPSK/8PSK receivers, an advanced modulation LDPC/BCH
and Turbo FEC decoder, and a DVB-S compliant FEC decoder. All required RAM is integrated
and all required clocks are generated on-chip from a single reference crystal. The baseband IQ
analog waveforms from the tuner section are sampled by the integrated 8-bit A/D converters
and resampled by the integrated interpolative digital lter banks.
Optimized soft decisions are then fed into either a DVB-S-compliant FEC decoder, or an
advanced-modulation DVB-S2 LDPC/BCH or Turbo decoder. The nal error-corrected output is
delivered in MPEG-2 transport format. The output clock is generated by an on-chip PLL for
low-jitter operation and glueless integration with Broadcom's high denition audio video sub-
systems, such as the BCM7401 and the BCM7402. The communication link sections include an
on-chip microcontroller for all system conguration, acquisition, control, monitoring and diag-
nostics functions, as well as an integrated DiSEqC 2.x controller for 2way communication with
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