LT5519

更新时间： 2024-11-10 22:46:51

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
12页	217K
描述
0.7GHz to 1.4GHz High Linearity Upconverting Mixer

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LT5519 数据手册

LT5519

0.7GHz to 1.4GHz

High Linearity

Upconverting Mixer

FEATURES

DESCRIPTIO

The LT^®5519 mixer is designed to meet the high linearity

requirements of wireless and cable infrastructure trans-

mission systems. A high speed, internally 50Ω matched,

LO amplifier drives a double-balanced mixer core, allow-

ing the use of a low power, single-ended LO source. An RF

output transformer is integrated, thus eliminating the

need for external matching components at the RF output,

whilereducingsystemcost, componentcount, boardarea

and system-level variations. The IF port can be easily

matched to a broad range of frequencies for use in many

different applications.

■

Wide RF Frequency Range: 0.7GHz to 1.4GHz

■

17.1dBm Typical Input IP3 at 1GHz

■

On-Chip RF Output Transformer

■

On-Chip 50Ω Matched LO and RF Ports

■

Single-Ended LO and RF Operation

■

Integrated LO Buffer: –5dBm Drive Level

■

Low LO to RF Leakage: – 44dBm Typical

■

Noise Figure: 13.6dB

■

Wide IF Frequency Range: 1MHz to 400MHz

■

Enable Function with Low Off-State Leakage Current

■

Single 5V Supply

^{Small 16-Lead Q}U^{FN Plastic Package}

■

The LT5519 mixer delivers +17.1dBm typical input 3rd

order intercept point at 1GHz with IF input signal levels of

–10dBm. The input 1dB compression point is typically

+5.5dBm. The IC requires only a single 5V supply.

APPLICATIO S

■

Wireless Infrastructure

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

Cable Downlink Infrastructure

Point-to-Point and Point-to-Multipoint Data

Communications

■

High Linearity Frequency Conversion

TYPICAL APPLICATIO

1µF

1000pF

RF Output Power, IM3 and IM2

vs IF Input Power (Two Input Tones)

39nH

BIAS

CC3

CC1

CC2

OUT

10pF

–10

–20

–30

–40

–50

–60

–70

–80

–90

100Ω

BPF

220pF

LT5519

4:1

= 1000MHz

IF1

IF2

= –5dBm

= 1140MHz

= 140MHz

= 141MHz

BPF

33pF

IM3

IM2

–

220pF

100Ω

= 25°C

GND

5pF

85Ω

–16

–12

–8

–4

–

(OPTIONAL)

IF INPUT POWER (dBm/TONE)

5519 F01a

LO INPUT

–5dBm

5519 F01b

Figure 1. Frequency Conversion in Wireless Infrastructure Transmitter

5519f

12 3 4 5 6 7...12

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与LT5519相关器件

型号	品牌	获取价格	描述	数据表
LT5519EUF	Linear	获取价格	0.7GHz to 1.4GHz High Linearity Upconverting Mixer
LT5519EUF#PBF	Linear	获取价格	LT5519 - 0.7GHz to 1.4GHz High Linearity Upconverting Mixer; Package: QFN; Pins: 16; Tempe
LT5520	Linear	获取价格	40MHz to 900MHz Quadrature Demodulator
LT5520	ADI	获取价格	1.3GHz 至 2.3GHz 高线性度上变频混频器
LT5520EUF	Linear	获取价格	1.3GHz to 2.3GHz High Linearity Upconverting Mixer
LT5520EUF#PBF	Linear	获取价格	LT5520 - 1.3GHz to 2.3GHz High Linearity Upconverting Mixer; Package: QFN; Pins: 16; Tempe
LT5521	Linear	获取价格	400MHz to 3.7GHz High Signal Level Downconverting Mixer
LT5521	ADI	获取价格	线性度非常高的有源混频器
LT5521EUF	Linear	获取价格	Very High Linearity Active Mixer
LT5521EUF#PBF	Linear	获取价格	LT5521 - Very High Linearity Active Mixer; Package: QFN; Pins: 16; Temperature Range: -40&

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