Si2115/13/11
Digital TV Receiver for DVB-T/C
Description
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.
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.
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.
Features
-
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
-
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
Digital terrestrial or cable STB
Digital PVR and DVD recorder
Digital TV
Digital PC TV card and USB dongle
Digital full-NIM tuner module
ANTENNA
or CABLE
INPUT
Balun
Si2115/13/11
RF_IP
RF_IN
LNA
PGA
I
ADC
Q
ADC
DSP
DIGITAL
FILTER
FILTER
ATV
DEMOD
DIGITAL
I/Q
PGA
OUTPUT
INTERFACE
DVB
DEMOD
EQUAL-
IZER
FEC
DSP
RF
AGC
0 / 90
IF
AGC
LOW-IF
TS_SYNC
TS_VAL
TS_ERR
TS_CLK
TS_DATA
[0..7]
8
SDA
SCL
INTB
A/V
SoC
VDD_L, VDD_D (1.8 V)
VDD_H, VDD_IO (3.3 V)
VDD_S (3.3 or 5 V)
DC/DC
FREQ
SYNTH
XOSC
CONTROL
INTERFACE
XOUT
BCLK
GPIO1
RSTB
ADDR
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
(V
DD_H
= 3.3 V, V
DD_L
= 1.8 V, V
DD_D
= 1.8 V, T
A
= 25 °C)
Parameter
Supply Voltage
Total Power Consumption
RF Input Frequency Range
Noise Figure
1
Wideband IIP3
1
Inband IIP3
1
LO Phase Noise at 860 MHz
Adjacent Channel Attenuation
DVB-T Sensitivity
2
DVB-T Carrier to Noise Ratio
2
Max gain
N±18,±36; max RF gain
N±1,±2; max RF gain
125 Hz | 250 Hz | 1 kHz | 10 kHz | 100 kHz
Integrated DSB: 125 Hz to 4 MHz
N±1; RF input
1
to DLIF output
8K, 64-QAM, 2/3CR, Gaussian Channel
8K, 64-QAM, 2/3CR, Gaussian Channel
DVB-T mode
Test Condition
Typ
1.8 and 3.3
1.1
42 to 870
4.0
+18
–5
–83 | –91 | –96 | –95 | –104
0.4 (–43)
80
–84
17
Unit
V
W
MHz
dB
dBm
dBm
dBc/Hz
°rms (dBc)
dB
dBm
dB
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 #
Si2115
Si2113
Si2111
Description
Digital TV receiver for DVB-T/C
Digital TV Receiver for DVB-C
Digital TV Receiver for DVB-T
Pin Assignments
DLIF_AGC
DLIF_N
DLIF_P
VDD_H
VDD_S
VDD_L
ADDR
BCLK
XOUT
SCL
7x7 mm QFN-48 Package Information
NC
36
XTAL_O 37
XTAL_I / RCLK 38
VDD_H 39
GND 40
VDD_H 41
GND 42
RF_SHLD 43
RF_IN 44
RF_IP 45
RF_SHLD 46
GND 47
GND 48
1
GND
35
34
33
32
31
30
NC
29
28
27
26
25
24 SDA
23 TS_CLK
22 TS_DATA0 / TS_SER
Si2115/13/11
GND_PAD
21 TS_DATA1
20 TS_DATA2
19 VDD_IO
18 GND
17 TS_DATA3
16 TS_DATA4
15 TS_DATA5
14 TS_DATA6
13 TS_DATA7
QFN-48
7x7 mm
2
VDD_H
3
GPIO1
4
INTB
5
RSTB
6
VDD_H
7
GND
8
VDD_IO
9
TS_ERR / GPIO2
10
TS_SYNC
11
TS_VAL
12
VDD_D
Symbol
A
D, E
e
Min
0.80
Nom
Max
Unit
mm
mm
mm
0.85
0.90
7.00 BSC
0.50 BSC
Digital TV Receiver for DVB-T/C
Copyright © 2011 by Silicon Laboratories
09.06.11
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.
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