Multimedia Digital Demodulator Copyright © 2015 by Silicon Laboratories 10.29.2015
HDTV MPEG S.o.C.
Si2167B
HOST_SCL
HOST_SDA
FRONT
END
OSC
& PLL
nPSK
DEMOD
S_ADC_IN
S_ADC_IP
S_ADC_QN
S_ADC_QP
ADC (I)
ADC (Q)
EQUAL-
IZER
I
2
C
SWITCH
TUN_SDA
TUN_SCL
GPIOCTRL
MPEG TS
INTERFACE
I
2
C
I/F
MP_C/_D (Sat.)
GPIO_0
RESETB1.2, 3.3V
DSP &
SYNCHRO
DVB-T/C/S/S2
FEC MODULE
OFDM
QAM
DEMOD
EQUAL-
IZER
DiSEqC
TM
2.0
DISEQC_IN
DISEQC_OUT
TC_ADC_P
TC_ADC_N
AGCs
ADC
MP_A/_B (T & C)
Ext. Clk or Xtal
QPSK / 8PSK
Satellite
ZIF Tuner
Silicon Labs
(Si217x/5x/4x)
TV Tuner
CLK_IN_OUT
VITERBI RS
LDPC BCH
TS_ERR/
GPIO_1
TS_SYNC
TS_VAL
8
TS_CLK
TS_DATA
Si2167-B22
Combo DVB-T/C/S/S2 Digital TV Demodulator
Description
The Si2167-B22 integrates DVB-T, DVB-C, DVB-S,
DVB-S2 (AMC-compliant), and DSS digital demodulators
into a single CMOS chip for terrestrial, cable, and satellite
TV standards. Leveraging Silicon Labs' proven digital
demodulation architecture, the Si2167-B22 achieves
superior reception performance for each media while
minimizing front-end design complexity and cost.
Connecting the Si2167-B22 to a terrestrial and cable hybrid
TV tuner, such as Silicon Labs’ Si217x, results in a high
performance and cost optimized TV front-end solution.
DVB-T and DVB-C demodulators are enhanced versions of
proven
an
d broadly used Si2169/68/67-A Silicon Labs
devices. Furthermore, ITU J.83 Annex B is also supported
for US and South American cable networks. The IF input
supports standard IF (36 MHz) or low-IF.
For DVB-T and DVB-S/DSS, an innovative and advanced
FEC de
codin
g scheme is implemented resulting in higher
performance.
The satellite demodulation functionality allows
demod
ula
ting widely deployed DVB-S, DIRECTV™ (DSS)
legacy standards, and DVB-S2 satellite broadcast. A
zero-IF interface allows for a seamless connection to
market proven satellite silicon tuners. Constant Coding
Modulation (CCM), QPSK/8PSK demodulation schemes
and broadcast profile are the main specifications of the
DVB-S2 demodulator. Silicon Labs' innovative LDPC and
BCH decoding architecture delivers best-in-class reception
while exhibiting low power dissipation.
The Si2167-B22 offers an on-chip blind scanning algorithm
fo
r
DVB-S/S2 and DVB-C standards (as well as blind lock
function). It also integrates DiSEqC™ 2.0 LNB interface for
satellite dish control.
The Si2167-B22 programmable Transport Stream interface
provid
es a
flexible range of output modes and is fully
compatible with all MPEG decoders or conditional access
modules to support any customer application. Si2167-B22
is fully API compatible with Si2164/69/68/66.
Features
- DVB-T (ETSI EN 300 744)
- COFDM demodulator and enhanced FEC decoder
- Supports all C.R., G.I., LP, and HP streams
- NorDig Test Spec 2.2.2, D-Book 7 V3 compliant
- DVB-C (ETSI EN 300 429) / ITU J.83 Annex A/B/C
- QAM demodulator and FEC decoder
- 1 to 7.2 MSymbol/s
- C-Book compliant
- DVB-S2 (ETSI EN 302 307 & TR102-376)
- QPSK/8PSK demodulator and FEC decoder
- Broadcast profile: CCM, 64800 bits frame, single TS
-
1 to 45 MSymbol/s
- DIRECTV™ AMC compatible
- DVB-S (ETSI EN 300 421)
- QPSK demodulator and enhanced FEC decoder
- 1 to 45 MSymbol/s
- DIRECTV™ DSS supported
- DiSEqC™ 2.0 interface and Unicable support
- I
2
C serial bus interfaces (master and host)
- Three ADCs with independent IF and ZIF (differential)
inputs for terrestrial/cable and satellite
- GPIOs and multi-purpose ports for independent AGCs
(up to 4) to control satellite and T/C tuners
- Firmware control for upgradeability
- Flexible TS interface with serial or parallel single output
- Fast lock times for all media
- Only two power supplies: 1.2 and 3.3 V
- Pin-to-pin and API compatibility with
Si2164/69/68/66
- 7x7 mm, QFN-48 pin package, Pb-free/RoHS compliant
Applications
- Full-NIM
- iDTV (integrated Digital TV)
- Digital terrestrial, cable, and satellite STB
- PC-TV accessories
- PVR, DVD, and Blue Ray disc recorders
