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SI2170-A20-GMR: 产品描述Consumer IC; 产品类别其他集成电路（IC）消费电路; 文件大小160KB，共2页; 制造商Silicon Laboratories Inc

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SI2170-A20-GMR概述

Consumer IC

SI2170-A20-GMR规格参数

参数名称	属性值
包装说明	,
Reach Compliance Code	unknown
Base Number Matches	1

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Si2170/1/2

Worldwide Hybrid TV Tuner with Analog Demodulator

Description

The Si2170/1/2 integrates a complete hybrid TV

tuner with analog TV demodulator supporting all

worldwide analog and digital standards for terrestrial

and cable broadcast applications. Leveraging Silicon

Labs’ proven digital low-IF architecture, the

Si2170/1/2 achieves unmatched performance while

minimizing design complexity and cost. No external

LNAs, tracking filters or SAW filters are used.

The Si2170/1/2 is the industry’s first silicon tuner to

exceed the performance of traditional discrete tuner

implementations, delivering superior picture quality

and a higher number of received stations in

real-world reception conditions. The highly linear

front-end architecture delivers superior blocking

perfromance resulting in higher sensitivity in crowded

and near/far reception conditions with strong

undesired channels and interference.

The Si2170 integrates the complete signal path from

antenna input to IF or analog video and sound

outputs. Compared to traditional discrete tuner

implementations, hundreds of external components

are eliminated including external LNAs, tracking filters

including discrete varactors and hand-tuned

inductors, two or three SAW filters, and the analog TV

demodulator, resulting in the simplest, lowest-cost

BOM for a hybrid tuner.

nterfacing the Si2170/1 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/C, ISDB-T/C)

High performance

Significant margin to A/74, NorDig, ARIB,

CENELEC, OpenCable™ specifications

Best-in-class real-world reception

Highly integrated, lowest BOM

No RF or IF SAW filters required

Integrated LNA and tracking filters

No alignment, tuning or calibration required

Analog TV demodulator

Superior video SNR

Customizable video filters (gain and group delay)

Overmodulation and ICPM tolerance

Flexible output interface

CVBS + SIF/AF to AV processor

LIF or ZIF I/Q to digital TV demodulator

3.3 and 1.8 V power supplies

Standard CMOS process technology

7 x 7 mm, 48-pin, QFN package

Pb-free/RoHS compliant

Applications

Hybrid ½-NIM, ¾-NIM and full-NIM

iDTV (Integrated Digital TV)

Digital terrestrial or cable STB

PC-TV card and USB dongle

Hybrid PVR and DVD recorder

RF_IP

Balun RF_IN

PGA

ADC

FILTER

ATV

DEMOD

OUTPUT

INTERFACE

ANTENNA

INPUT

Si217x

PGA

ADC

DSP

AGC

DLIF

(or ZIF)

CVBS

SIF/AF

RSTB

INTB

SDA

SCL

ADDR

DTV

DEMOD

1.8 V

3.3 V

LDO

FREQ

SYNTH

XOSC

DIV

Hybrid TV Tuner with ATV Demod

CONTROL

INTERFACE

AGC

0 / 90

AGC

LOW-IF

SoC

XTAL_O

XTAL_I

BCLK2

XOUT

BCLK1

GPIO1

GPIO2

5.26.09

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