SI2173-A Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – Worldwide Hybrid TV Tuner with Analog Demodulator

Si2173
Worldwide Hybrid TV Tuner with Analog Demodulator
Description
The Si2173 integrates a complete hybrid tuner with
analog TV demodulator supporting all worldwide
terrestrial and cable TV standards. Leveraging
Silicon Labs’ proven digital low-IF architecture, the
Si2173 extends the unmatched performance and
design simplicity of the original Si2170/1/2 while
further reducing footprint size. No external LNAs,
tracking filters, or SAW filters are used.
Compared with competing silicon tuners and discrete
MOPLL-based tuners, the Si2173 delivers superior
picture quality and a higher number of received
stations in crowded and near/far real-world reception
conditions. This unprecedented level of performance
in the field is enabled by a novel front-end
architecture which uniquely combines very high
linearity and low noise, delivering superior blocking
performance and higher sensitivity in the presence of
strong undesired channels and interference.
The Si2173 integrates the complete signal path from
antenna input to IF or analog video and sound
outputs. Compared to traditional discrete
MOPLL-based tuners, the Si2173 eliminates
hundreds of external components including external
LNAs, tracking filter varactors and inductors (unlike
competing silicon tuners), and SAW filters, resulting in
the simplest, lowest-cost BOM for a hybrid TV tuner
while improving performance.
Interfacing the Si2173 seamlessly with the Si2165
DVB-T/C demodulator creates a complete terrestrial
and cable hybrid PAL/SECAM and DVB-T/C receiver.
Features
- Worldwide hybrid TV tuner
- Analog TV: NTSC, PAL/SECAM
- Digital TV: ATSC/QAM, DVB-T/T2/C, ISDB-T/C, DTMB
- 42–1002 MHz frequency range
- Compliance to A/74, NorDig, D-Book, C-Book,
ARIB, EN55020, OpenCable™ specifications
- Best-in-class real-world reception
- Exceeds discrete MOPLL-based tuners
- Highly integrated, lowest BOM
- No SAW filters required
- Integrated LNAs and complete tracking filters
- No alignment, tuning or calibration required
- Digital low-IF architecture
- Integrated channel select filters
- Analog TV demodulator
- Superior video SNR performance
- Customizable video filters
- Overmodulation and ICPM tolerant
- Flexible output interface
- CVBS + SIF/AF to audio/video processor or SoC
- DLIF to digital TV demodulator or SoC
- 3.3 and 1.8 V power supplies
- Standard CMOS process technology
- 6 x 6 mm, 40-pin QFN package
- RoHS compliant
Applications
- Hybrid ½-NIM, ¾-NIM and full-NIM
- iDTV (Integrated Digital TV)
- Digital terrestrial and cable STB
- Hybrid PVR and DVD recorder
ANTENNA
Si2173
INPUT
RF_IP
PGA
Balun _{RF_IN}
PGA
RF
AGC
0 / 90
IF
AGC
1.8 V
3.3 V
LDO
FREQ
SYNTH
XOSC
I
ADC
DDSSPP
FFIILLTTEERR
Q
ATV
ADC _DEMOD
LOW-IF
AGC
DTV
DLIF _DEMOD
CVBS
SIF/AF
RSTB
INTB
AV
SoC
SDA
SCL
ADDR
Worldwide Hybrid TV Tuner
Copyright © 2011 by Silicon Laboratories
8.19.11