Si2167-B20
Combo DVB-T/C/S/S2 Digital TV Demodulator
Description
The Si2167-B20 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-B20 achieves
superior reception performance for each media while
minimizing front-end design complexity and cost.
Connecting the Si2167-B20 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 and broadly used Si2167-A10 and Si2169/68
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 decoding scheme is implemented resulting in higher
performance.
The
satellite
demodulation
functionality
allows
demodulating widely deployed DVB-S, DIRECTV™ (DSS)
legacy standards, and new generation 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-B20 offers an on-chip blind scanning algorithm
for 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-B20 programmable Transport Stream 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. Si2167-B20
is software compatible with Si2167-A10 and is also fully
API compatible with Si2166-B and Si2168/69.
DISEQC_OUT
DISEQC_IN
Features
-
DVB-T (ETSI EN 300 744)
-
COFDM demodulator and enhanced FEC decoder
-
NorDig Unified 2.2.1, D-Book 7.0 compliant
-
Supports all C.R., G.I., LP, and HP streams
-
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 (optimized for 2 to 32 MSymbol/s)
-
DIRECTV™ AMC compatible
-
DVB-S (ETSI EN 300 421)
-
QPSK demodulator and enhanced FEC decoder
-
1 to 45 MSymbol/s
-
DIRECTV™ DSS compliant
-
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 compatibility with former Si2167/66-A10,
Si2166-B, and Si2168/69
7x7 mm, QFN-48 pin package, Pb-free/RoHS compliant
Full-NIM
iDTV (integrated Digital TV)
Digital terrestrial, cable, and satellite STB
PC-TV accessories
PVR, DVD, and Blue Ray disc recorders
Applications
1.2, 3.3V
RESETB
DiSEqC
TM
2.0
QPSK / 8PSK
S_ADC_IP
S_ADC_IN
S_ADC_QP
S_ADC_QN
MP_C/_D (Sat.)
MP_A/_B (T & C)
TC_ADC_P
TC_ADC_N
Ext. Clk or Xtal
DSP &
SYNCHRO
nPSK
DEMOD
EQUAL-
IZER
CTRL
GPIO_0
GPIO
TS_ERR/
GPIO_1
AGCs
OFDM
QAM
DEMOD
EQUAL-
IZER
VITERBI
RS
8
Silicon Labs
(Si217x/5x/4x)
ADC
OSC
& PLL
DVB-T/C/S/S2
FEC MODULE
TV Tuner
Si2167B
HOST_SDA
HOST_SCL
CLK_IN_OUT
TUN_SDA
TUN_SCL
I
2
C
SWITCH
I
2
C
I/F
Multimedia Digital Demodulator
Copyright © 2012 by Silicon Laboratories
HDTV MPEG S.o.C.
ADC (Q)
FRONT
END
INTERFACE
MPEG TS
Satellite
ZIF Tuner
ADC (I)
LDPC
BCH
TS_SYNC
TS_VAL
TS_CLK
TS_DATA
9.17.2012
Si2167-B20
Combo DVB-T/C/S/S2 Digital TV Demodulator
Selected Electrical Specifications
(T
A
= –10 to 75 °C)
Parameter
General
Input clock reference
Supported XTAL frequency
DVB-T
1
/DVB-C
2
Total power consumption
DVB-S
3
DVB-S2
4
Thermal resistance,
JA
Input ADC Sampling Clock
Satellite DVB-S
Satellite DVB-S2
DVB-T/C
Power Supplies
V
DD
_
VCORE
V
DD
_
VANA
V
DD
_
VIO
1.14
3.00
3.00
1.20
3.30
3.30
1.30
3.60
3.60
V
V
V
45 MBaud
32 MBaud
36 MHz standard IF/low-IF
91
65
—
94
70
56
101
101
65
MHz
MHz
MHz
2 layer PCB
4 layer PCB
4
16
—
—
—
—
—
—
—
190/180
230
465
32
23
30
30
—
—
—
—
—
MHz
MHz
mW
mW
mW
°C/W
°C/W
Test Condition
Min
Typ
Max
Unit
Notes:
1.
Test conditions: 8 MHz, IF mode, 8K FFT, 64 QAM, parallel TS output.
2.
Test conditions: 6.9 Mbaud, IF mode, 256 QAM, parallel TS output.
3.
Test conditions: 30 MBaud, CR = 7/8, parallel TS (at QEF: BER = 2. 10
–4
).
4.
Test conditions: 32 MBaud, 3/5 Code Rate, 8PSK, pilots On, parallel TS, C/N at picture failure (PER = 10
–4
).
Pin Assignments
TS_ERR/GPIO_1
26
XTAL_I/CLK_IN
VDD_VCORE
TS_DATA[7]
25
24 TS_DATA[6]
23 TS_DATA[5]
22 VDD_VIO
21 GND
20 VDD_VCORE
19 TS_DATA[4]
18 TS_DATA[3]
17 TS_DATA[2]
16 TS_DATA[1]
15 TS_DATA[0]/TS_SER
14 TS_CLK
13 TS_SYNC
1
MP_A
2
MP_B
3
GPIO_0
4
DISEQC_CMD
5
DISEQC_IN
6
DISEQC_OUT
7
VDD_VCORE
8
GND
9
VDD_VIO
10
SCL_HOST
11
SDA_HOST
12
TS_VAL
VDD_VANA
RESETB
XTAL_O
ADDR
MP_D
MP_C
36
S_ADC_IP 37
S_ADC_IN 38
S_ADC_QP 39
S_ADC_QN 40
TC_ADC_P 41
TC_ADC_N 42
NC 43
CLK_IN_OUT 44
SDA_MAST 45
SCL_MAST 46
GND 47
VDD_VCORE 48
GND
35
34
33
32
31
30
29
28
Si2167B
(GND_PAD)
QFN-48
7x7mm
Selection Guide
Part Number
Si2167-B20-GM
Multimedia Digital Demodulator
Description
Multimedia Digital TV Demodulator for DVB-T/C/S/S2, 7x7 mm QFN-48.
Copyright © 2012 by Silicon Laboratories
9.17.2012
Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc.
Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders.
GND
27
PCB设计
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