Worldwide Digital TV Tuner
Description
Features
Si2141
The Si2141 is the industry's most advanced digital TV
tuner supporting all worldwide terrestrial and cable TV
standards for digital TV reception. Leveraging five
generations of field-proven digital TV tuner technology, the
Si2141 delivers the same or better RF performance as
Silicon Labs' Si2147 digital TV tuner while further reducing
footprint size and bill of materials cost.
Available in an industry-leading 3x3 mm QFN package, the
Si2141 eliminates the need for an external balun, LNAs,
SAW filters, and inductive power supply filtering to deliver
the lowest-cost, most design-friendly and area-efficient
solution available today. While competing solutions may
also eliminate the balun, they suffer degradation in NF and
second-order distortion, compromising reception. A
fully-integrated 1.8 V LDO enables single supply operation,
while a dual supply option offers additional system
flexibility. Increased immunity to LTE interference and a
harmonic rejection mixer with outstanding immunity to
Wi-Fi interference eliminate the need for external filtering.
For advanced digital broadcast standards with high-order
constellations, such as DVB-T2 and DVB-C2, the superior
integrated phase noise of the Si2141 provides several dB
of improved reception performance compared to
competing solutions. Additionally, a software-selectable
cable mode offers optimized return loss.
The Si2141 delivers exceptional picture quality and a
higher number of received stations when compared to
other silicon tuners. Incorporating worldwide field
experience from five prior digital tuner generations in mass
production, the Si2141 delivers the highest tolerance to
real-world reception conditions.
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Worldwide digital TV tuner
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ATSC/QAM, DVB-T2/T/C2/C, ISDB-T/C, DTMB
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1.7 MHz, 6 MHz, 7 MHz, 8 MHz, and 10 MHz chan-
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nel bandwidths
Industry-leading margin to A/74, NorDig, D-Book,
C-Book, ARIB, EN55020, OpenCable™, DTMB
Lowest BOM for a silicon digital TV tuner
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No balun
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No SAW filters or wire-wound inductors
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Integrated LNAs and complete tracking filters
Best-in-class real-world reception
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Industry-leading phase noise performance
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High immunity to Wi-Fi and LTE interference
Low power consumption
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3.3 V and 1.8 V power supplies
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Integrated 1.8 V LDO for 3.3 V single-supply
operation
Single LIF output to SoC and/or demodulator
Standard CMOS process technology
Smallest footprint for a silicon digital TV tuner
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3x3 mm, RoHS-compliant 24-pin QFN
Digital ½-NIM tuner module
iDTV (Integrated Digital TV)
Digital terrestrial and cable STB
Digital PVR, DVD and Blu-Ray disc recorder
PC-TV accessories
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Applications
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Si2141
ANTENNA
INPUT
DSP
FILTER
OUTPUT
INTERFACE
PGA
I
ADC
Q
ADC
AGC
LIF
DTV
DEMOD
PGA
CONTROL
INTERFACE
RF
AGC
3.3 V
1.8 V
1.8 V
LDO
0 / 90
IF
AGC
LOW-IF
SDA
SCL
ADDR
AV
SoC
FREQ
SYNTH
XOSC
XOUT
XTAL_O
XTAL_I
GPIO
Digital TV Tuner
Copyright © 2014 by Silicon Laboratories
9.29.2014
Worldwide Digital TV Tuner
Selected Electrical Specifications
(V
DDH
= 3.3 V, V
DDL
= 1.8 V, T
A
= 25 °C)
Parameter
Supply Voltage
Total Power Consumption
RF Input Frequency Range
NF, terrestrial*
VHF-L1 (42–103 MHz)
VHF-L2 (104–198 MHz)
VHF-H (199–470 MHz)
UHF (471–870 MHz)
Return Loss*
Out-of-band IIP3*
In-Band IIP3*
LO Phase Noise at 860 MHz
LO Integrated Phase Noise at 860 MHz
LIF Output Center Frequency
LIF Differential Output Voltage
Terrestrial mode
Cable mode
VHF-H, N±18, ±36
VHF-H, N±1, ±2
1 kHz
10 kHz
100 kHz
1 MHz
DSB: 125 Hz to 4 MHz offset
Channel BW = 6 MHz
7 MHz
8 MHz
Programmable
External 1.8 V supply
Test Condition
Typ
1.8 and 3.3, or only 3.3
494
42 to 1002
3.6
2.3
3.0
3.2
3
8
+5
–6
–100
–100
–105
–132
0.25
(–47)
4 to 7
4.5 to 6.5
5 to 6
0.5 to 2.0
Unit
V
mW
MHz
dB
dB
dB
dB
dB
dB
dBm
dBm
dBc/Hz
Si2141
rms
(dBc)
MHz
Vppd
*Note:
Includes all connector, PCB and front-end circuit losses at the F-connector input of the Si2141 EVB.
Selection Guide
Part #
Si2141
Description
Worldwide digital TV tuner for ATSC/QAM, DVB-T2/T/C2/C, ISDB-T/C, DTMB
Pin Assignments
XTAL_I
VDDH
VDDH
GND
3x3 mm QFN-24 Package Information
RF_REF 19
RF_IP 20
GND 21
RF_IN 22
ADDR 23
GPIO1 24
1
GPIO2
2
SDA
NC
18
XTAL_O
17
16
15
14
13
12 XOUT
11 LIF_P
GND
PAD
10 LIF_N
9
8
VDDH
GND
Dimension
A
D, E
e
e1
J, K
Min
0.80
Nom
0.85
3.00 BSC
0.40 BSC
0.45 BSC
Max
0.90
Unit
mm
mm
mm
mm
3
SCL
4
AGC2
5
AGC1
6
GND
7 VDDL
1.60
1.70
1.80
mm
Digital TV Tuner
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
Copyright © 2014 by Silicon Laboratories
9.29.2014
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