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SI21812-B60 Fiches technique(PDF) 1 Page - Silicon Laboratories

No de pièce SI21812-B60
Description  Dual ISDB-T and DVB-S2/S2X/T/C/S Digital TV Demodulator
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Fabricant  SILABS [Silicon Laboratories]
Site Internet  http://www.silabs.com
Logo SILABS - Silicon Laboratories

SI21812-B60 Fiches technique(HTML) 1 Page - Silicon Laboratories

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Dual Digital Demodulators
Copyright © 2015 by Silicon Laboratories
11.5.15
Si21812-B60
Dual ISDB-T and DVB-S2/S2X/T/C/S Digital TV Demodulator
Description
The Si21812 integrates two separate high-performance digital
demodulators for the Japanese and South American terrestrial
ISDB-T standard and for the DVB-T, DVB-C, DVB-S2/S and
DVB-S2X standards into a single compact package. Leveraging
Silicon Labs' proven digital demodulation architecture, the
Si21812 achieves excellent reception performance for each media
while significantly minimizing front-end design complexity, cost,
and power dissipation. Connecting the Si21812 to both a dual
terrestrial/cable TV tuner, and a dual satellite tuner, results in a
high-performance and cost optimized TV front-end solution.
Leveraging significant field experience in DVB terrestrial
demodulation (DVB-T2/T), the Si21812 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.
The DVB-T and DVB-C, including ITU-T J.83 annex B,
demodulators are enhanced versions of proven and broadly used
Si2164/67/68/69 Silicon Labs devices.
The satellite reception allows demodulating widespread DVB-S,
DIRECTV™ (DSS), DVB-S2, DIRECTV™ (AMC) legacy
standards, and new Part II of DVB-S2 (S2X) satellite broadcast
standard. A zero-IF interface (differential) allows for a seamless
connection to market proven satellite silicon tuners. It also
integrates two DiSEqC™ 2.0 LNB interfaces for satellite dish
control and, for each satellite demodulator, an equalizer to
compensate for echoes in long cable feeds from the LNB to the
satellite tuner RF input.
The Si21812 offers an on-chip blind scanning algorithm for DVB-S/
S2/S2X and DVB-C standards, as well as blind lock function. The
Si21812 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
- AC1 and AC2 decoding
- DVB-T (ETSI EN 300 744)
- NorDig Unified 2.5, D-Book 8 compliant
- DVB-C (ETSI EN 300 429) / ITU-T J.83 Annex A/B/C
- 1 to 7.2 MSymbol/s, C-Book compliant
- DVB-S2 (ETSI EN 302 307-1 V1.4.1)
- QPSK/8PSK demodulator
- DVB-S2X (ETSI EN302 307-2 V1.1.1)
- QPSK/8PSK, 8/16/32APSK demodulator
- Roll-off factors from 0.05 to 0.35
- Channel bonding for TS transmission supported
- DVB-S (ETSI EN 300 421) and DSS supported
- Dual DiSEqC™ 2.x interface, Unicable support
- 1 to 45 MSps for all satellite standards 
(<40 MSps in 32APSK)
- I2C serial bus interfaces (master and host)
- Upgradeable with firmware patch download via fast SPI or I2C
(broadcast mode supported)
- Dual independent differential IF input for T/C tuners and differ-
ential ZIF I/Q inputs for satellite tuners
- GPIOs and multi-purpose ports (two per demodulator)
- Separate flexible TS interfaces with serial or parallel 
outputs and cross-bar feature
- Fast lock times for all standards
- 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
I2C Block_A
DEMODULATOR_A CORE
DiSEqC_A
ADC_A
ADC_A
ADC_A
Si21812
SCL_HOST
SDA_HOST
RESETB
1.2, 3.3V
DiSEqC_IN_A_B
SDA_MAST
SCL_MAST
XO
XTAL_I/CLK_IN
CLK_IN/OUT
I2C Block_B
DEMODULATOR_B CORE
DiSEqC_B
ADC_B
ADC_B
ADC_B
DiSEqC_OUT_A
DiSEqC_CMD
TC_ADC_P_A
TC_ADC_N_A
S_ADC_IN_A
S_ADC_IP_A
S_ADC_QN_A
S_ADC_QP_A
Dual Satellite
Tuner
TC_ADC_N_B
TC_ADC_P_B
S_ADC_QP_B
S_ADC_QN_B
S_ADC_IP_B
S_ADC_IN_B
DiSEqC_OUT_B
MP_C_A
MP_A_A
MP_B_B
MP_D_B
ADDR_A
ADDR_B
TV Tuner
TV Tuner
TS1_CLK
TS1_SYNC
8
TS1_DATA
TS1_VAL
TS2_SYNC
8
TS2_DATA
TS2_VAL
TS2_CLK
GPIO0/
TS_ERR_B
TS_A
TS_B
GPIO1/
TS_ERR_A


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