Datasheet > MAX2102

MAX2102

更新时间： 2024-11-19 22:55:27

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描述
Direct-Conversion Tuner ICs for Digital DBS Applications

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数据手册

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MAX2102 数据手册

19-1256; Rev 2; 10/98

Dire c t -Co n ve rs io n Tu n e r ICs fo r

Dig it a l DBS Ap p lic a t io n s

/MAX2105

Ge n e ra l De s c rip t io n

____________________________Fe a t u re s

♦ Low-Cost Bipolar Design, Lowest Cost

†

The MAX2102/MAX2105 are low-cost direct-conver-

sion tuner ICs designed for use in digital direct-broad-

cast satellite (DBS) television set-top box units. The

direct-conversion architecture reduces system cost

compared to devices with IF-based architectures.

Architecture

♦ Operate from a Single +5V Supply

♦ 950MHz to 2150MHz Input Frequency Range*

♦ On-Chip Quadrature Generator, Dual-Modulus

The MAX2102/MAX2105 directly tune L-band signals to

b a s e b a nd us ing a b roa d b a nd I/Q d ownc onve rte r.

Operating frequency range spans from at least 950MHz

to 2150MHz.

Prescaler (/64, /65)

♦ Input Levels

-69dBm to -19dBm per Carrier (MAX2102)

The ICs include a low-noise amplifier (LNA) with auto-

matic gain control (AGC), two downconverter mixers,

an oscillator buffer with 90° quadrature generator and

prescaler, and baseband amplifiers.

-60dBm to -19dBm per Carrier (MAX2105)

♦ Over 50dB AGC Control Range (MAX2102)

♦ Noise Figure = 13.2dB (MAX2102);

IP3 = 6.5dBm (at 1450MHz)

The MAX2102 features an AGC range of 50dB, allowing

input power levels as low as -69dBm. The MAX2105

has a reduced AGC range of 41dB and accepts input

power levels down to -60dBm. The reduced AGC range

of the MAX2105 allows the use of a high-gain external

LNA to achieve a lower system noise figure (NF).

♦ Automatic Baseband Offset Correction

♦ Easy Interface to MAX1002/MAX1003 Dual ADC

and Popular Baseband ICs

________________________Ap p lic a t io n s

Ord e rin g In fo rm a t io n

DBS Tuners

Wireless Local Loop

Broadband Systems

LMDS

PART

TEMP. RANGE

0°C to +70°C

PIN-PACKAGE

28 SO

MAX2102CWI

MAX2105CWI

DVB-Compliant DBS Tuners

Cellular Base Stations

28 SO

Fu n c t io n a l Dia g ra m

RFIN

QOUT GND

13 12

GND

AGC

GND

RFIN

GND

IOUT

90°

MAX2102

MAX2105

/64, /65

0°

OFFSET CORRECTION

16 17 18

QDC IDC IDC

QDC

GND

PSGND

PSOUT

MOD V

†

Patents pending

*Contact factory for MAX2102/MAX2105 versions with expanded frequency range.

________________________________________________________________ Maxim Integrated Products

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

12 3 4 5 6 7...16

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与MAX2102相关器件

型号	品牌	获取价格	描述	数据表
MAX2102/MAX2105	MAXIM	获取价格	Direct-Conversion Tuner ICs for Digital DBS Applications
MAX2102_1	MAXIM	获取价格	Evaluation Kit
MAX2102CWI	MAXIM	获取价格	Direct-Conversion Tuner ICs for Digital DBS Applications
MAX2102CWI+	MAXIM	获取价格	Consumer Circuit, Bipolar, PDSO28, SOIC-28
MAX2102CWI+T	MAXIM	获取价格	Consumer Circuit, Bipolar, PDSO28, SOIC-28
MAX2102CWI-T	MAXIM	获取价格	Consumer Circuit, Bipolar, PDSO28, SOIC-28
MAX2102EVKIT	MAXIM	获取价格	5V/3.3V/3V or Adjustable.High-Efficiency.Low-
MAX2102EVKIT-SO	MAXIM	获取价格	Evaluation Kit
MAX2102-MAX2105	MAXIM	获取价格	Direct-Conversion Tuner ICs for Digital DBS Applications
MAX2104	MAXIM	获取价格	Direct-Conversion Tuner IC for Digital DBS Applications

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