si2173 Silicon Laboratories, si2173 Datasheet

si2173

Manufacturer Part Number

si2173

Description

Worldwide Hybrid Tv Tuner With Analog Demodulator

Manufacturer

Silicon Laboratories

Datasheet

1.SI2173.pdf (2 pages)

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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.

MOPLL-based

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.

DVB-T/C demodulator creates a complete terrestrial

and cable hybrid PAL/SECAM and DVB-T/C receiver.

Worldwide Hybrid TV Tuner

nterfacing the Si2173 seamlessly with the Si2165

ANTENNA

INPUT

Balun

Compared

1.8 V

3.3 V

tuners,

RF_IN

RF_IP

Si2173

the

AGC

LDO

traditional

Si2173

SYNTH

FREQ

0 / 90

Worldwide Hybrid TV Tuner with Analog Demodulator

eliminates

discrete

PGA

XOSC

AGC

Features

- Worldwide hybrid TV tuner

- Compliance to A/74, NorDig, D-Book, C-Book,

- Best-in-class real-world reception

- Highly integrated, lowest BOM

- No alignment, tuning or calibration required

- Digital low-IF architecture

- Analog TV demodulator

- Flexible output interface

- 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

ADC

ARIB, EN55020, OpenCable™ specifications

Analog TV: NTSC, PAL/SECAM

Digital TV: ATSC/QAM, DVB-T/T2/C, ISDB-T/C, DTMB

42–1002 MHz frequency range

Exceeds discrete MOPLL-based tuners

No SAW filters required

Integrated LNAs and complete tracking filters

Integrated channel select filters

Superior video SNR performance

Customizable video filters

Overmodulation and ICPM tolerant

CVBS + SIF/AF to audio/video processor or SoC

DLIF to digital TV demodulator or SoC

DEMOD

FILTER

LOW-IF

DSP

ATV

AGC

DLIF

CVBS

SIF/AF

RSTB

INTB

SDA

SCL

ADDR

Si2173

DEMOD

DTV

SoC

8.19.11

Related parts for si2173

si2173 Summary of contents

Page 1

... 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 ...

Page 2

... ATV Receiver Sensitivity ATV Receiver Unweighted Video SNR +1 dBm input level; M/N | B/G, D L/L’ DLIF Output Center Frequency DLIF Differential Output Voltage Swing *Note: Measured at the F-connector input of the Si2173 reference design and includes all connector, PCB, and front-end circuit losses. Pin Assignments 30 ...

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