Si2115/13/11
Digital TV Receiver for DVB-T/C
Description
Features
The Si2115/13/11 digital TV receiver integrates a complete
digital TV tuner and a DVB-T and/or DVB-C digital
demodulator into a single, monolithic, CMOS mixed-signal
IC.
- Digital TV tuner
- 42–870 MHz frequency range
- No alignment, tuning or calibration
- Digital TV (DTV) demodulator and FEC decoder
- DVB-T (ETSI EN 300 744)(Si2115 and Si2111 only)
- DVB-C (ETSI EN 300 429)(Si2115 and Si2113 only)
- ITU J.83 Annex A/C (Si2115 and Si2113 only)
- Supports all DVB-T modes
- Supports DVB-C symbol rates from 1 to 7.2 MBaud
- Advanced echo equalizer
- Best-in-class real-world reception
- Compliance with NorDig 2.1, D-Book, and C-Book
An enhanced version of the proven DVB-T/C demodulator
technology from Silicon Labs' Si2165 has been
incorporated into the Si2115/13/11 to deliver superior
performance under a wide variety of field conditions. The
digital demodulator uses sophisticated on-chip algorithms
to ensure optimal reception even under difficult
transmission conditions. In addition, the Si2115/13/11
offers on-chip Blindscan and Blindlock scanning algorithms
for DVB-C as well as DSP-assisted DVB-T fast channel
scanning.
By combining digital tuner and demodulator functions in a
single device, the Si2115/13/11 enables a full TV receiver
solution in a very small PCB footprint and with minimal
external components. The Si2115/13/11 contains an
on-chip crystal oscillator and only requires the connection
of a standard 24 MHz crystal or a reference clock. For
dual-receiver applications, the primary Si2115/13/11 can
provide a reference clock on its XOUT pin directly to the
XTAL_I pin of the secondary Si2115/13/11, thus saving the
cost of one crystal. The Si2115/13/11 programmable
Transport Stream interface provides both serial and parallel
modes, and is fully compatible with all MPEG decoders and
conditional access modules (CI/CI+) to support any
customer application.
ANTENNA
or CABLE
INPUT
Si2115/13/11
Balun
RF_IN
I
ADC
PGA
RF_IP
LNA
Q
ADC
PGA
specifications
- Highly integrated, lowest BOM
- No SAW filters required
- Integrated LNAs and complete tracking filters
- Customizable channel select filters
- Flexible output interface to AV processor
- Serial or parallel TS output
- Low IF output to optional external demodulator
- Single die in standard CMOS process
- 3.3 and 1.8 V power supplies
- 7x7 mm, 48-pin QFN package, RoHS compliant
Applications
-
DSP
DIGITAL
FILTER
FILTER
ATV
DEMOD
Digital terrestrial or cable STB
Digital PVR and DVD recorder
Digital TV
Digital PC TV card and USB dongle
Digital full-NIM tuner module
DIGITAL
I/Q
DVB
DEMOD
EQUALIZER
FEC
DSP
VDD_L, VDD_D (1.8 V)
VDD_H, VDD_IO (3.3 V)
VDD_S (3.3 or 5 V)
RF
AGC
0 / 90
DC/DC
FREQ
SYNTH
IF
AGC
LOW-IF
CONTROL
INTERFACE
XOSC
OUTPUT
INTERFACE
Leveraging Silicon Labs' proven 3rd-generation digital
low-IF tuner architecture, the Si2115/13/11 delivers a
higher number of received channels in real-world crowded
spectrum conditions without the need for external LNAs,
tracking filters, or SAW filters.
TS_SYNC
TS_VAL
TS_ERR
TS_CLK
TS_DATA
[0..7]
8
A/V
SoC
SDA
SCL
INTB
RSTB
ADDR
GPIO1
BCLK
XOUT
XTAL_I
XTAL_O
24 MHz
Digital TV Receiver for DVB-T/C
Copyright © 2011 by Silicon Laboratories
09.06.11
Si2115/13/11
Digital TV Receiver for DVB-T/C
Selected Electrical Specifications
(VDD_H = 3.3 V, VDD_L = 1.8 V, VDD_D = 1.8 V, TA = 25 °C)
Parameter
Test Condition
Typ
Unit
1.8 and 3.3
V
1.1
W
42 to 870
MHz
Max gain
4.0
dB
N±18,±36; max RF gain
+18
dBm
N±1,±2; max RF gain
–5
dBm
125 Hz | 250 Hz | 1 kHz | 10 kHz | 100 kHz
–83 | –91 | –96 | –95 | –104
dBc/Hz
Integrated DSB: 125 Hz to 4 MHz
0.4 (–43)
°rms (dBc)
80
dB
8K, 64-QAM, 2/3CR, Gaussian Channel
–84
dBm
8K, 64-QAM, 2/3CR, Gaussian Channel
17
dB
Supply Voltage
Total Power Consumption
DVB-T mode
RF Input Frequency Range
Noise
Figure1
Wideband IIP3
1
Inband IIP31
LO Phase Noise at 860 MHz
Adjacent Channel Attenuation
DVB-T
N±1; RF
Sensitivity2
DVB-T Carrier to Noise
Ratio2
input1 to
DLIF output
Notes:
1. Measured at the F-connector input of the Si2115/13/11 reference design and includes all front-end circuit losses.
2. Measured at Quasi Error Free conditions (BER = 2 x 10–4).
Selection Guide
Part #
Description
Si2115
Digital TV receiver for DVB-T/C
Si2113
Digital TV Receiver for DVB-C
Si2111
Digital TV Receiver for DVB-T
XOUT
BCLK
VDD_L
DLIF_P
DLIF_N
NC
VDD_H
NC
DLIF_AGC
ADDR
VDD_S
SCL
Pin Assignments
36
35
34
33
32
31
30
29
28
27
26
25
XTAL_O 37
7x7 mm QFN-48 Package Information
24 SDA
XTAL_I / RCLK 38
23 TS_CLK
VDD_H 39
22 TS_DATA0 / TS_SER
Si2115/13/11
GND 40
VDD_H 41
GND 42
21 TS_DATA1
20 TS_DATA2
19 VDD_IO
GND_PAD
RF_SHLD 43
18 GND
QFN-48
7x7 mm
RF_IN 44
RF_IP 45
17 TS_DATA3
16 TS_DATA4
RF_SHLD 46
15 TS_DATA5
GND 47
14 TS_DATA6
2
3
4
5
6
7
8
9
10
11
12
GND
GPIO1
INTB
RSTB
VDD_H
GND
VDD_IO
TS_ERR / GPIO2
TS_SYNC
TS_VAL
VDD_D
13 TS_DATA7
1
VDD_H
GND 48
Digital TV Receiver for DVB-T/C
Symbol
Min
A
D, E
e
0.80
Nom
Max
Unit
0.85
0.90
7.00 BSC
0.50 BSC
mm
mm
mm
Copyright © 2011 by Silicon Laboratories
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.
09.06.11
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