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
demodulation (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 legacy 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
standard, 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.
Si2180-B60
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
2
C serial bus interfaces (master and host)
I
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
Digital Demodulator
Copyright © 2015 by Silicon Laboratories
11.5.15
ISDB-T and DVB-T/C Demodulator
Selected Electrical Specifications
(T
A
= –10 to 75 °C)
Parameter
General
Input clock reference
Supported XTAL frequency
ISDB-T
1
Total power consumption
DVB-T
2
DVB-C
3
Thermal resistance
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
2 layer PCB
4 layer PCB
—
—
—
—
4
16
—
—
168
182
142
35
23
—
—
—
—
30
30
MHz
MHz
mW
mW
mW
°C/W
°C/W
Test Condition
Min
Typ
Max
Unit
Si2180-B60
Notes:
1.
Test conditions: 8K, 64-QAM, CR = 7/8, GI = 1/32, 13 segments
2.
Test conditions: 8 MHz, 8K FFT, 64-QAM, parallel TS.
3.
Test conditions: 6.9 Mbaud, 256-QAM, parallel TS.
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
NC
5
NC
6
NC
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
29
36
NC 37
NC 38
NC 39
NC 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
28
Si2180
(GND_PAD)
QFN-48
7x7mm
Selection Guide
Part Number
Si2180-B60-GM
Digital Demodulator
Description
ISDB-T and DVB-T/C Demodulator, 7x7 mm QFN-48
Copyright © 2015 by Silicon Laboratories
11.5.15
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
Analogue and Mixed Signal
京公网安备 11010802033920号
EEWORLD
