SI21802-B60 Datasheet, PDF (1/2 Pages) Silicon Laboratories – Dual ISDB-T and DVB-T/C Demodulator

Si21802-B60
Dual ISDB-T and DVB-T/C Demodulator
Description
The Si21802 integrates two separate high-performance digital
demodulators for the Japanese and South American terrestrial
ISDB-T standard and for the DVB-T and DVB-C standards in a
single compact package. Leveraging Silicon Labs' proven digital
demodulation architecture, the Si21802 achieves excellent
reception performance for each media while significantly
minimizing front-end design complexity, cost, and power
dissipation. Connecting the Si21802 to a dual terrestrial/cable TV
tuner results in a high-performance and cost optimized TV or STB
front-end solution.
Leveraging significant field experience in DVB terrestrial
demodulation (DVB-T), the Si21802 dual 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
legacy standard (ITU-T J.83 Annex A/C) and the Americas' cable
standard (ITU-T J.83 Annex B).
The Si21802 offers an on-chip blind scanning algorithm for DVB-C
standard, as well as blind lock function.
The Si21802 embeds two independent programmable transport
stream interfaces which provide a flexible range of output modes,
including a cross-bar functionality, and are fully compatible with all
MPEG decoders or conditional access modules to support any
customer application.
Features
- Pin-to-pin compatible with all dual demodulator family: Si216x2
and Si218x2
- API compatible with all single and all dual demodulators
- 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
- I²C serial bus interfaces (master and host)
- Upgradeable with firmware patch download via fast SPI or I²C
(broadcast mode supported)
- Firmware control (embedded ROM/NVM)
- Dual independent differential IF input for T/C tuners
- GPIOs and muti-purpose ports (two per demodulator)
- Separate flexible TS interfaces with serial or parallel outputs
and cross-bar feature
- Fast lock times for all media
- Low power consumption
- Only two power supplies: 1.2 and 3.3 V
- 8x8 mm, QFN-68 pin package, Pb-free/RoHS compliant
Applications
- Multi-receiver iDTV: on-board or in a NIM
- Advanced multimedia PVR STBs
- PC-TV accessories
- PVR, DVD, and Blu-Ray disc recorders
TV Tuner
MP_A_A
MP_C_A
TC_ADC_P_A
TC_ADC_N_A
ADC_A
1.2, 3.3V RESETB
Si21802
DEMODULATOR_A CORE
TS_A
SDA_MAST
SCL_MAST
XO
XTAL_I/CLK_IN
CLK_IN/OUT
TV Tuner
TC_ADC_P_B
TC_ADC_N_B
MP_B_B
MP_D_B
Digital Demodulator
I2C Block_A
ADC_B
I2C Block_B
TS_B
DEMODULATOR_B CORE
Copyright © 2015 by Silicon Laboratories
TS1_SYNC
TS1_DATA
TS1_VAL ⁸
TS1_CLK
GPIO1/
TS_ERR_A
ADDR_A
SDA_HOST
SCL_HOST
ADDR_B
GPIO0/
TS_ERR_B
TS2_SYNC
TS2_DATA
TS2_VAL ⁸
TS2_CLK
11.5.15