SI2141 Datasheet, PDF (1/2 Pages) Silicon Laboratories – Worldwide Digital TV Tuner

Si2141
Worldwide Digital TV Tuner
Description
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.
Features
- Worldwide digital TV tuner
- ATSC/QAM, DVB-T2/T/C2/C, ISDB-T/C, DTMB
- 1.7 MHz, 6 MHz, 7 MHz, 8 MHz, and 10 MHz chan-
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
- No balun
- No SAW filters or wire-wound inductors
- Integrated LNAs and complete tracking filters
- Best-in-class real-world reception
- Industry-leading phase noise performance
- High immunity to Wi-Fi and LTE interference
- Low power consumption
- 3.3 V and 1.8 V power supplies
- 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
- 3x3 mm, RoHS-compliant 24-pin QFN
Applications
- 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
ANTENNA
INPUT
Si2141
PGA
I
ADC
DSP
PGA
Q
FILTER
ADC
AGC
DTV
LIF
DEMOD
RF
AGC
0 / 90
IF
AGC
3.3 V
1.8 V
1.8 V ^LDO
FREQ
SYNTH
XOSC
LOW-IF
SDA
SCL
AV
SoC
ADDR
Digital TV Tuner
Copyright © 2014 by Silicon Laboratories
9.29.2014