Datasheet > MAX2223

MAX2223

更新时间： 2024-10-04 14:57:55

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
26页	364K
描述
超宽带、直接转换、L频段卫星调谐器

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MAX2223 数据手册

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MAX2223

Ultra-Wideband, Direct-Conversion, L-Band

Satellite Tuner

General Description

Benefits and Features

The MAX2223 low-cost, direct-conversion tuner IC is de-

signed for satellite set-top and very small aperture termi-

nal (VSAT) applications. The device directly converts the

satellite signals from the LNB to baseband using a broad-

band I/Q downconverter. The operating frequency range

extends from 925MHz to 2175MHz.

● 925MHz to 2175MHz Frequency Range

● Monolithic VCO

• Low Phase Noise: -97dBc/Hz at 10kHz

• No Calibration Required

● High Dynamic Range: -75dBm to 0dBm

● 1GHz RF Bandwidth Supported

● Single +3.3V ±5% Supply

The device includes an LNA and an RF variable-gain am-

plifier, I and Q down-converting mixers, and baseband

amplifiers. The RF variable-gain amplifier provides more

than 70dB of gain control range. The device supports an

RF bandwidth of 1GHz.

● Low-Power Standby Mode

● Address Pin for Multituner Applications

● Differential I/Q Interface

● I C-Compatible, 2-Wire Serial Interface

● Very Small, 5mm x 5mm, 28-Pin TQFN Package

The device includes fully monolithic VCOs, as well as a

complete fractional-N frequency synthesizer. Additional-

ly, an on-chip crystal oscillator is provided along with a

buffered output for driving additional tuners and demod-

ulators. Synthesizer programming and device configura-

tion are accomplished with a 2-wire serial interface. The IC

features a VCO auto-select (VAS) function that automati-

cally selects the proper VCO. For multituner applications,

the device can be configured to have one of two 2-wire

interface addresses. A low-power standby mode is avail-

able whereupon the signal path is shutdown while leaving

the reference oscillator, digital interface, and buffer circuits

active, providing a method to reduce power in single and

multituner applications.

Ordering Information appears at end of data sheet.

A small number of passive components are needed to

form a complete broadband satellite tuner DVB-S2 RF

front-end solution. The tuner is available in a very small,

5mm x 5mm, 28-pin TQFN package.

Applications

● VSATs

19-100597; Rev 1; 9/20

12 3 4 5 6 7...26

中文翻译

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