Datasheet > MAX3544

MAX3544

更新时间： 2024-11-23 11:17:31

品牌	Logo	应用领域
美信 - MAXIM		电视
页数	文件大小	规格书
20页	1012K
描述
Multiband Digital Television Tuner

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数据手册

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MAX3544 数据手册

19-5470; Rev 0; 7/10

Multiband Digital Television Tuner

General Description

Features

S Standard IF Architecture Ensures < -70dBc Spurs

S Integrated RF Tracking Filter

The MAX3544 broadband single-conversion television

tuner is designed for use in digital (DVB-T, DVB-C,

GB20600) television sets and terrestrial receivers. It

receives all television bands from 47MHz to 862MHz and

converts the selected channel to an industry-standard

36MHz IF.

S Integrated IF Bandpass Filter

S Full-Band Coverage (47MHz to 862MHz)

S 70dB Image Rejection

The MAX3544 includes a variable-gain low-noise input

amplifier; an RF tracking filter; an image rejection mixer;

a peak detector; an optional internal, self-contained RF

gain-control loop (RFAGC); a VCO with fractional-N PLL;

an IF bandpass filter; an IF variable-gain amplifier; and

a crystal oscillator.

S 4dB Noise Figure

S Fast-Locking, Low Phase-Noise PLL Supports

256QAM

S Crystal Oscillator and Buffer/Divider to Drive

Baseband IC

S 745mW Power Dissipation

The MAX3544 is available in a small, 6mm x 6mm, thin QFN

package, and the application circuit fits in 20mm x 25mm on

a two-layer board with single-sided component mounting.

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

Applications

DTMB/GB20600

MAX3544CTL+

0NC to +70NC

40 TQFN-EP*

DVB-T/DVB-T2

DVB-C

+Denotes a lead(Pb)-free/RoHS-compliant package.

*EP = Exposed paddle.

ATSC

Block Diagram/Typical Application Circuit/Pin Configuration

TFVL2

SCL

I C

FRAC-N

PLL

TFVH1

TFVH2

TFU1

CCDIG

DIGITAL

DEMODULATOR

REFOUT

GND

MAX3544

REF_OUT

IFVGC

TFU2A

TFU2B

TFU3

DTVOUT+

DTVOUT-

GND

DIG_IF

TRACKING

FILTER

PDET

LEXT

GND

RFINL

IFIN+

LC BANDPASS

FILTER

NOTE: LAYOUT FITS 25mm x 20mm ON 2-LAYER BOARD WITH DEVICE PLACEMENT ON TOP SIDE ONLY.

_______________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

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