Digital Demodulator Copyright © 2015 by Silicon Laboratories 11.5.15
Si2180-B60
ISDB-T and DVB-T/C Demodulator
Description
The Si2180 integrates digital demodulators for the Japanese
and South American terrestrial ISDB-T standard and for the
DVB-T and DVB-C standards in a single advanced CMOS die.
Leveraging Silicon Labs' proven digital demodulation
architecture, the Si2180 achieves excellent reception
performance for each media while significantly minimizing
front-end design complexity, cost, and power dissipation.
Connecting the Si2180 to a hybrid TV tuner or digital only
tuner, such as Silicon Labs' Si217x/5x/4x devices, results in a
high-performance and cost optimized TV or STB front-end
solution.
Leveraging significant field experience in DVB terrestrial
de
modul
ation (DVB-T), Silicon Labs’ internally-developed
ISDB-T demodulator can accept standard or low-IF inputs
(differential) and complies with the Brazilian SBTVD-T
terrestrial specifications (ABNT NBR 16.601 and 15.604).
Main features include fast channel scan, very short lock times,
state of the art CCI performance, partial reception, and
auxiliary channels decoding. DVB-T and DVB-C demodulators
are next-generation enhanced versions of proven and
broadly-used Silicon Labs’ Si2169/68/67/66/64/62/60 devices.
The cable reception allows demodulating widely deployed
DVB-C leg
a
cy standard (ITU J.83 Annex A/C) and the
Americas' cable standard (ITU J.83 Annex B).
The Si2180 offers an on-chip blind scan algorithm for DVB-C
stand
ard, as well as a blind lock function. The Si2180
programmable transport stream output interface provides a
flexible range of output modes and is fully compatible with all
MPEG decoders or conditional access modules to support any
customer application.
Features
- Pin-to-pin compatible with all Si216x/8x single demods fam-
ily
- API compatible with all single and dual demods families
- ISDB-T (ABNT NBR 16.601 and 15.604)
- 6, 7, and 8 MHz bandwidth
- Partial reception supported (reception of only one
OFDM segment at the center of a group of segments)
- AC1 and AC2 decoding
- DVB-T (ETSI EN 300 744)
- OFDM demodulator and enhanced FEC decoder
- NorDig unified 2.5 and D-Book 8 compliant
- DVB-C (ETSI EN 300 429) and ITU-T J.83 Annex A/B/C
- QAM demodulator and FEC decoder
- 1 to 7.2 MSymbol/s
- I
2
C serial bus interfaces (master and host)
- Firmware control (embedded ROM/NVM)
- Upgradeable with patch download via I
2
C or fast SPI
- Flexible TS output interface (serial, parallel, and slave)
- Fast lock times for all media
- Low power consumption
- Two power supplies: 1.2 and 3.3 V
- 7x7 mm, QFN-48 pin package, Pb-free/RoHS compliant
Applications
- iDTV: on-board design or in a NIM
- Advanced multimedia STB, PVR, and Blu-ray recorders
- PC-TV accessories
