Datasheet > STV4100

STV4100

更新时间： 2024-09-23 06:14:55

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
7页	169K
描述
Ultra-compact low-power 3.3-V terrestrial tuner IC

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STV4100 数据手册

STV4100

Ultra-compact low-power 3.3-V terrestrial tuner IC

Data Brief

Features

Description

! RF-to-baseband direct conversion

The STV4100 terrestrial tuner is a direct-

conversion (zero-IF) receiver with quadrature

outputs intended for digital TV broadcasting.

(IQ interface only)

! Single 3.3-V DC supply

On each VHF and UHF input is a low noise

amplifier with both switchable and variable gain to

ensure an optimal signal level for the two mixers.

Each mixer, which down-converts the signal to

baseband, is followed by a low-pass filter and

amplifier. The baseband gain is programmable via

a dedicated pin.

! Input frequency range 174 to 230 MHz and

470 to 870 MHz

! Fully integrated VCO

! Harmonic rejection mixer stage

! Fully integrated RF AGC with RF power

monitoring

! Programmable channel filter covers 6 to 8 MHz

The LO signals are provided by an integrated PLL

which contains an on-chip voltage controlled

oscillator meeting stringent phase noise

requirements. The LO frequencies are

programmable.

channel spacing

! Low external component count

! Low power consumption (625 mW typical)

! Temperature range -10° C to 70° C

The comparison frequency for the

! Crystal frequency output to drive the

phase/frequency detector is generated by dividing

the crystal oscillator reference frequency. The

crystal frequency can be from 16 MHz to 31 MHz

depending on application.

demodulator IC

! Compatible with 5-V and 3.3-V I C bus

! Fully Nordig Unified (versions 1.0.2, 1.0.3, 2.0)

compliant

Typical applications

! Terrestrial set-top box

! iDTV

! DTG (D-Book) compliant

! Digitenne compliant

! VFQFPN-32 5x5x1 mm , exposed pad down

! PCTV

! ECOPACK, environmentally-friendly package,

RoHS (2002/95/EC) compliant.

BBAGC

RFAGC

VHF_IN

BBIP

BBIN

BBQP

BBQN

UHF_IN

PLL, dividers

DC offset compensation

SCL

XTI, XTO

Amplifier

I C Bus Interface

SDA

FREF

March 2009

Rev 1

1/7

For further information contact your local STMicroelectronics sales office.

www.st.com

12 3 4 5 6 7

中文翻译

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