SMA428A

更新时间： 2024-11-18 22:43:03

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		射频和微波射频放大器微波放大器
页数	文件大小	规格书
8页	106K
描述
High Gain, Low Noise Amplifier

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中文翻译

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技术参数
数据手册

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SMA428A 技术参数

生命周期：	Obsolete	Reach Compliance Code：	compliant
风险等级：	5.72	Is Samacsys：	N
特性阻抗：	50 Ω	构造：	COMPONENT
增益：	18 dB	最大输入功率 (CW)：	8 dBm
最高工作温度：	85 °C	最低工作温度：	-40 °C
射频/微波设备类型：	NARROW BAND LOW POWER	Base Number Matches：	1

SMA428A 数据手册

SMA428A

High Gain, Low Noise Amplifier

PRELIMINARY DATA

• HIGH GAIN Gp = 21 dB at 1.85 GHz

• LOW NOISE FIGURE NF = 1.3 dB at 1.85 GHz

• LOW CURRENT CONSUMPTION 5.9 mA

• OPEN COLLECTOR OUTPUT

• TYPICAL SUPPLY VOLTAGE: 2.4-3 V

• GAIN-STEP-MODE (36dB)

SOT323-6L (SC70)

• ULTRA MINIATURE SOT323-6L PACKAGE (LEAD

FREE)

ORDER CODE

BRANDING

SMA428ATR

TBD

APPLICATIONS

• LNA FOR CELLULAR MARKET (ideal for GSM900,

DCS1800 and PCS1900).

BLOCK DIAGRAM

Vcc, 1

• LNA FOR GPS APPLICATIONS

DESCRIPTION

GS, 4

In, 6

High gain and low noise figures make the SMA428A an

ideal solution for Low Noise Amplifiers and receiver

front end stages up to 2.5 GHz. SMA428A’s typical

supply voltage range is 2.4 to 3.3 volts. It shows

excellent performances in terms of NF, Gain and

current consumption, using just 3 external matching

components. Applying supply voltage to the GS pin and

grounding Vcc pin, it provides a reduced gain step of 35

dB. SMA428A is housed in ultra miniature SOT323-6L

package(LEAD FREE), the relative dimensions are

1.15mmx1.8mm with 0.8mm thickness.

Out, 3

GND, 2;5

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

Device voltage

out

Voltage at pin Out

Voltage at pin GS

Total Device Current

Current into pin In

3.5

tot

dBm

0.5

Total dissipation, T < 125 C

tot

Input Power

Operating temperature

Storage temperature

-40 to +85

stg

-65 to +150

150

Max. operating junction temperature

THERMAL RESISTANCE

Thermal Resistance Junction soldering point

200

thjs

C/W

1/8

March, 10 2003

12 3 4 5 6 7 8

中文翻译

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