Dual DVB-T2/C2/S2/S2X/T/C/S Digital TV Demodulator
Description
The Si21642C integrates two separate high-performance digital
demodulators for the DVB-T2/T, DVB-C2/C, DVB-S2/S and
DVB-S2X standards into a single compact package. Leveraging
Silicon Labs' proven digital demodulation architecture, the
Si21642C achieves excellent reception performance for each
media while significantly minimizing front-end design complexity,
cost, and power dissipation. Connecting the Si21642C 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.
Silicon Labs' internally developed DVB-C2 demodulator can
accept a standard IF (36 MHz) or low-IF input (differential) and
support all modes specified by the DVB-C2 standard. The main
features of the DVB-C2 mode are 4096-QAM, 6 or 8 MHz
bandwidth, management of notch insertion (broadband and
narrowband), and support of multiple data slices and PLPs.
DVB-T2 (including T2-Lite) demodulators support all modes
specified by the DVB-T2 standard (V1.4.1). Main features of the
DVB-T2 mode are, SISO and MISO support, FEF management,
fully autonomous signal acquisition including automatic L1
signaling parsing support for all pilot patterns, and DVB-T2/T
auto-detection. 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 Si21642C offers an on-chip blind scanning algorithm for
DVB-S/S2/S2X and DVB-C standards, as well as blind lock
function. The Si21642C 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.
Si21642-C60
Features
-
-
-
-
Pin-to-pin compatible with all dual demodulator family:
-
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)
Si216x2 and Si218x2
API compatible with all single and all dual demodulators
DVB-T2 and T2-Lite (ETSI EN 302 755-V1.4.1)
-
Bandwidth: 1.7, 5, 6, 7 or 8 MHz
-
NorDig Unified 2.5 and D-Book 8 compliant
DVB-C2 (ETSI EN 302 769-V1.2.1)
-
16-QAM to 4096-QAM OFDM demodulation
-
I
2
C serial bus interfaces (master and host)
-
Upgradeable with firmware patch download via fast SPI or I
2
C
-
-
-
-
-
-
-
-
-
-
(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
Multi-receiver iDTV: on-board or in a NIM
Advanced multimedia PVR STBs
PC-TV accessories
PVR, DVD, and Blu-Ray disc recorders
1.2, 3.3V
RESETB
Applications
MP_A_A
MP_C_A
S_ADC_IP_A
S_ADC_IN_A
S_ADC_QP_A
S_ADC_QN_A
TC_ADC_P_A
TC_ADC_N_A
DiSEqC_OUT_A
DiSEqC_CMD
DiSEqC_IN_A_B
SDA_MAST
SCL_MAST
XO
XTAL_I/CLK_IN
CLK_IN/OUT
DiSEqC_OUT_B
TC_ADC_P_B
TC_ADC_N_B
S_ADC_IP_B
S_ADC_IN_B
S_ADC_QP_B
S_ADC_QN_B
MP_B_B
MP_D_B
DiSEqC_B
ADC_B
ADC_B
ADC_B
ADC_A
ADC_A
ADC_A
DiSEqC_A
Si21642C
TS1_SYNC
TS1_DATA
TS1_VAL 8
TS1_CLK
GPIO1/
TS_ERR_A
ADDR_A
SDA_HOST
SCL_HOST
ADDR_B
I2C Block_B
TS_B
Dual Satellite
Tuner
DEMODULATOR_A CORE
TS_A
I2C Block_A
TV Tuner
GPIO0/
TS_ERR_B
TS2_SYNC
TS2_DATA
TS2_VAL 8
TS2_CLK
TV Tuner
DEMODULATOR_B CORE
Dual Digital Demodulators
Copyright © 2015 by Silicon Laboratories
HDTV MPEGS.o.C.
11.5.15
Dual DVB-T2/C2/S2/S2X/T/C/S Digital TV Demodulator
Selected Electrical Specifications
(T
A
= –10 to 70 °C)
.
Parameter
General
Input clock reference
Supported XTAL frequency
Total power consumption for
each demodulator
Test Condition
Min
4
16
—
—
—
—
—
—
—
1.14
3.00
3.00
Typ
—
—
356
182
327
142
421
230
42
1.20
3.30
3.30
Max
30
30
—
—
—
—
—
—
—
1.30
3.60
3.60
Unit
MHz
MHz
mW
mW
mW
mW
mW
mW
°C/W
V
V
V
Si21642-C60
DVB-T2
1
DVB-T
2
DVB-C2
3
DVB-C
4
DVB-S2
5
DVB-S
6
4 layer PCB
Thermal resistance (
JA
)
Power Supplies
V
DD
_
VCORE
V
DD
_
VANA
V
DD
_
VIO
Notes:
1.
Test conditions: 8 MHz, 256-QAM, 32K FFT, CR = 3/5, GI = 1/128, PP7, C/N at picture failure, parallel TS.
2.
Test conditions: 8 MHz, 8K FFT, 64-QAM, parallel TS.
3.
Test conditions: 4096-QAM, CR = 5/6, GI = 1/128, C/N = 34 dB (at picture failure), parallel TS.
4.
Test conditions: 6.9 Mbaud, 256-QAM, parallel TS.
5.
Test conditions: 32 Mbaud, CR = 3/5, 8PSK, pilots On, C/N at picture failure, parallel TS.
6.
Test conditions: 30 Mbaud, CR = 7/8, at QEF: BER = 2 x 10
–4
, parallel TS.
Pin Assignments
S_ADC_IP_A
VDD_ANA
ADDR_B
ADDR_A
XTAL_I/CLK_IN
XO
RESETB
MP_D_B
MP_C_A
VDD_CORE
VDD_CORE
GPIO_1/TS_ERR_A
TS2_DATA[7]
TS1_DATA[7]
TS2_DATA[6]
TS1_DATA[6]
TS2_DATA[5]
51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35
S_ADC_IN_A 52
S_ADC_QP_A 53
S_ADC_QN_A 54
S_ADC_IP_B 55
S_ADC_IN_B 56
S_ADC_QP_B 57
S_ADC_QN_B 58
TC_ADC_P_A 59
TC_ADC_N_A 60
TC_ADC_P_B 61
TC_ADC_N_B 62
CLK_IN_OUT 63
SDA_MAST 64
SCL_MAST 65
GND 66
VDD_CORE 67
VDD_CORE 68
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17
34 TS1_DATA[5]
33 VDD_VIO
32 GND
31 VDD_CORE
30 VDD_CORE
29 TS2_DATA[4]
28 TS1_DATA[4]
27 TS2_DATA[3]
26 TS1_DATA[3]
25 TS2_DATA[2]
24 TS1_DATA[2]
23 TS2_DATA[1]
22 TS1_DATA[1]
21 TS2_DATA[0]/TS2_SER
20 TS1_DATA[0]/TS1_SER
19 TS2_CLK
18 TS1_CLK
Si21642C
(GND_PAD)
QFN-68
8x8mm
Selection Guide
Part #
Si21642-C60-GM/R
Dual Digital Demodulators
Description
Dual Digital TV Demodulator for DVB-T2/C2/S2/S2X/T/C/S, 8x8 mm QFN-68
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
MP_A_A
MP_B_B
GPIO_0/TS_ERR_B
DISEQC_CMD_A
DISEQC_IN_A_B
DISEQC_OUT_A
DISEQC_OUT_B
VDD_CORE
VDD_CORE
GND
VDD_VIO
SCL_HOST
SDA_HOST
TS1_VAL
TS2_VAL
TS1_SYNC
TS2_SYNC
京公网安备 11010802033920号
EEWORLD
