Datasheet > LTC5598

LTC5598

更新时间： 2024-11-10 14:58:11

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
16页	288K
描述
5MHz 至 1600MHz 高线性度直接正交调制器

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中文翻译

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LTC5598 数据手册

LTC5598

5MHz to 1600MHz

High Linearity Direct

Quadrature Modulator

FEATURES

DESCRIPTION

The LTC^®5598 is a direct I/Q modulator designed for high

performance wireless applications, including wireless

infrastructure. It allows direct modulation of an RF signal

using differential baseband I and Q signals. It supports

point-to-point microwave link, GSM, EDGE, CDMA,

700MHz band LTE, CDMA2000, CATV applications and

other systems. It may also be conﬁgured as an image

reject upconverting mixer, by applying 90° phase-shifted

signals to the I and Q inputs.

Frequency Range: 5MHz to 1600MHz

High Output IP3: +27.7dBm at 140MHz

+22.9dBm at 900MHz

Low Output Noise Floor at 6MHz Offset:

No Baseband AC Input: –161.2dBm/Hz

= 5.5dBm: –160dBm/Hz

OUT

Low LO Feedthrough: –55dBm at 140MHz

High Image Rejection: –50.4dBc at 140MHz

Integrated LO Buffer and LO Quadrature Phase

Generator

The I/Q baseband inputs consist of voltage-to-current

converters that in turn drive double-balanced mixers.

The outputs of these mixers are summed and applied

to a buffer, which converts the differential mixer signals

to a 50Ω single-ended buffered RF output. The four

balanced I and Q baseband input ports are intended for

DC coupling from a source with a common-mode voltage

level of about 0.5V. The LO path consists of an LO buffer

with single-ended or differential inputs, and precision

quadrature generators that produce the LO drive for the

mixers. The supply voltage range is 4.5V to 5.25V, with

about 168mA current.

50Ω Single-Ended LO and RF Ports

>400MHz Baseband Bandwidth

24-Lead QFN 4mm × 4mm Package

Pin-Compatible with Industry Standard Pin-Out

Shut-down Mode

APPLICATIONS

Point-to-Point Microwave Link

Military Radio

Basestation Transmitter GSM/EDGE/CDMA2K

700MHz LTE Basestation Transmitter

Satellite Communication

L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

CATV/Cable Broadband Modulator

13.56MHz/UHF RFID Modulator

TYPICAL APPLICATION

Noise Floor vs RF Output Power

and Differential LO Input Power

5MHz to 1600MHz Direct Conversion Transmitter Application

–152

4.7μF

1nF

= 140MHz; f = 2kHz; CW (NOTE 3)

LTC5598

20dBm

–154

–156

–158

RF = 5MHz

TO 1600MHz

19.3dBm

13.4dBm

10.4dBm

8.4dBm

6.4dBm

I-DAC

V-I

I-CHANNEL

90o

10nF

Q-CHANNEL

V-I

Q-DAC

–160

–162

5598 TA01

BASEBAND

GENERATOR

10nF

10nF 470nF

VCO/SYNTHESIZER

–14 –12 –10 –8 –6 –4 –2

50Ω

RF OUTPUT POWER (dBm)

5598 TA02

5598f

12 3 4 5 6 7...16

中文翻译

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与LTC5598相关器件

型号	品牌	获取价格	描述	数据表
LTC5598IUF	Linear	获取价格	5MHz to 1600MHz High Linearity Direct Quadrature Modulator
LTC5598IUF#PBF	Linear	获取价格	LTC5598 - 5MHz to 1600MHz High Linearity Direct Quadrature Modulator; Package: QFN; Pins:
LTC5598IUF#TRPBF	Linear	获取价格	LTC5598 - 5MHz to 1600MHz High Linearity Direct Quadrature Modulator; Package: QFN; Pins:
LTC5599	Linear	获取价格	30MHz to 1300MHz Low Power Direct Quadrature Modulator
LTC5599	ADI	获取价格	30MHz 至 1300MHz 低功率直接正交调制器
LTC5599_15	Linear	获取价格	30MHz to 1300MHz Low Power Direct Quadrature Modulator
LTC5599IUF#PBF	Linear	获取价格	LTC5599 - 30MHz to 1300MHz Low Power Direct Quadrature Modulator; Package: QFN; Pins: 24;
LTC5599IUF#TRPBF	Linear	获取价格	LTC5599 - 30MHz to 1300MHz Low Power Direct Quadrature Modulator; Package: QFN; Pins: 24;
LTC559X	Linear	获取价格	300MHz to 4GHz Active Downconverting Mixer
LTC5612ELM	ETC	获取价格	Optoelectronic

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