SI2147 Datasheet, PDF (1/2 Pages) Silicon Laboratories – Worldwide Digital TV Tuner

Si2147
Worldwide Digital TV Tuner
Description
A universal digital TV tuner, the Si2147 supports
digital reception for all worldwide terrestrial and cable
TV standards. By combining Silicon Laboratories’
proven digital low-IF architecture with a
5^th-generation RF front-end, the Si2147 maintains
the highest performance that exceeds that of
MOPLL-based tuners, including industry-leading 2^nd
order distortion performance. Pin- and
API-compatibility to the previous generation minimize
customers’ development effort.
The Si2147 delivers unprecedented integration with
no external balun, tracking filters, LNAs, SAW filters,
or inductive power supply filtering. While other
solutions may also eliminate the balun, they suffer
degradation in NF and 2^nd order distortion
compromising reception. Silicon Laboratories’
proprietary and field-proven architecture delivers not
only an optimized BOM but also world-class system
performance. Options for single or dual supply and
internal power-on reset are included. A harmonic
rejection mixer delivers outstanding immunity to
Wi-Fi and LTE interference, replacing the need for
external filtering.
For advanced digital terrestrial TV reception, DVB-T2
and DVB-C2 constellations demand outstanding
phase noise specifications, and the Si2147 rises to
the challenge, delivering industry-leading integrated
phase noise. Additionally, a software-selectable
cable mode offers optimized return loss.
The Si2147 delivers exceptional picture quality and a
higher number of received stations when compared
to other solutions. Incorporating worldwide field
experience from four prior tuner generations in mass
production, the Si2147 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
- Industry-leading margin to A/74, NorDig, D-Book,
C-Book, ARIB, EN55020, OpenCable™ specifications
- 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
- Exceeds discrete MOPLL-based tuners
- 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
- Single-supply option for 3.3 V-only operation
- Integrated power-on reset circuit
- Low-IF output to SoC or demodulator
- Standard CMOS process technology
- 4x4 mm, 28-pin QFN package
- RoHS compliant
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 ^Si2147
INPUT
PGA
I
DSP
ADC
DSP
FILTER
PGA
Q
FIALTVER
ADC _DEMOD
AGC
DTV
DLIF _DEMOD
RF
AGC
0 / 90
IF
AGC
3.3 V
1.8 V ^LDO
FREQ
SYNTH
XOSC
LOW-IF
RSTB AV
SoC
SDA
SCL
ADDR
Digital TV Tuner
Copyright © 2012 by Silicon Laboratories
12.21.12