Datasheet > 射频和微波 > 射频/微波调制器/解调器> LT5528EUF

LT5528EUF

更新时间： 2024-02-01 14:20:53

品牌	Logo	应用领域
凌特 - Linear		射频微波
页数	文件大小	规格书
16页	310K
描述
1.5GHz to 2.4GHz High Linearity Direct Quadrature Modulator

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中文翻译

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LT5528EUF 数据手册

LT5528

1.5GHz to 2.4GHz

High Linearity Direct

Quadrature Modulator

DESCRIPTIO

FEATURES

■

Direct Conversion to 1.5GHz to 2.4GHz

The LT^®5528 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

PHS, GSM, EDGE, TD-SCDMA, CDMA, CDMA2000,

W-CDMA and other systems. It may also be conﬁgured

as an image reject up-converting mixer, by applying

90° phase-shifted signals to the I and Q inputs. 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 an on-chip RF

transformer, which converts the differential mixer signals

to a 50Ω single-ended 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

input, and precision quadrature generators that produce

the LO drive for the mixers. The supply voltage range is

4.5V to 5.25V.

■

High OIP3: 21.8dBm at 2GHz

■

Low Output Noise Floor at 5MHz Offset:

No RF: –159.3dBm/Hz

= 4dBm: –151.8dBm/Hz

OUT

■

4-Ch W-CDMA ACPR: –66dBc at 2.14GHz

Integrated LO Buffer and LO Quadrature Phase

Generator

■

50Ω AC-Coupled Single-Ended LO and RF Ports

50Ω DC Interface to Baseband Inputs

Low Carrier Leakage: –42dBm at 2GHz

High Image Rejection: 45dB at 2GHz

16-Lead QFN 4mm × 4mm Package

APPLICATIO S

■

Infrastructure Tx for DCS, PCS and UMTS Bands

■

Image Reject Up-Converters for PCS and UMTS

Bands

■

Low-Noise Variable Phase-Shifter for 1.5GHz to

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

2.4GHz Local Oscillator Signals

TYPICAL APPLICATIO

1.5GHz to 2.4GHz Direct Conversion Transmitter Application

with LO Feed-Through and Image Calibration Loop

W-CDMA ACPR, AltCPR and Noise vs RF Output

Power at 2140MHz for 1, 2 and 4 Channels

CC 8, 13

–55

–60

–65

–70

–75

–80

–140

–145

–150

–155

–160

–165

DOWNLINK TEST MODEL 64 DPCH

LT5528

RF = 1.5GHz

TO 2.4GHz

I-DAC

V-I

I-CHANNEL

0°

4-CH ACPR

2-CH ACPR

90°

BALUN

2-CH AltCPR

1-CH AltCPR

4-CH NOISE

LO FEED-THROUGH CAL OUT

IMAGE CAL OUT

4-CH AltCPR

1-CH ACPR

Q-CHANNEL

V-I

Q-DAC

CAL

BASEBAND

DSP

VCO/SYNTHESIZER

2, 4, 6, 9, 10, 12, 15, 17

1-CH NOISE

–42 –38 –34 –30 –26 –22 –18 –14

RF OUTPUT POWER PER CARRIER (dBm)

ADC

5528 TA01a

5528 TA01b

5528f

12 3 4 5 6 7...16

中文翻译

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与LT5528EUF相关器件

型号	品牌	获取价格	描述	数据表
LT5528EUF#PBF	Linear	获取价格	LT5528 - 1.5GHz to 2.4GHz High Linearity Direct Quadrature Modulator; Package: QFN; Pins:
LT5528EUF#TRPBF	Linear	获取价格	暂无描述
LT5534	Linear	获取价格	50MHz to 3GHz RF Power Detector with 60dB Dynamic Range
LT5534	ADI	获取价格	具有 60dB 动态范围的 50MHz 至 3GHz RF 功率检波器
LT5534ESC6	Linear	获取价格	50MHz to 3GHz RF Power Detector with 60dB Dynamic Range
LT5534ESC6#PBF	Linear	获取价格	LT5534 - 50MHz to 3GHz RF Power Detector with 60dB Dynamic Range; Package: SC70; Pins: 6;
LT5534ESC6#TR	Linear	获取价格	LT5534 - 50MHz to 3GHz RF Power Detector with 60dB Dynamic Range; Package: SC70; Pins: 6;
LT5534ESC6#TRMPBF	Linear	获取价格	LT5534 - 50MHz to 3GHz RF Power Detector with 60dB Dynamic Range; Package: SC70; Pins: 6;
LT5534ESC6PBF	Linear	获取价格	RF/Microwave Detector, 50 MHz - 3000 MHz RF/MICROWAVE LINEAR DETECTOR, LEAD FREE, PLASTIC,
LT5534ESC6TRPBF	Linear	获取价格	RF/Microwave Detector, 50 MHz - 3000 MHz RF/MICROWAVE LINEAR DETECTOR, LEAD FREE, PLASTIC,

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