RF2444 데이터 시트보기 (PDF) - RF Micro Devices

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RF2444

HIGH FREQUENCY LNA/MIXER

RF Micro Devices 

RF2444

8

HIGH FREQUENCY LNA/MIXER

Typical Applications

• WLAN or Wireless Local Loop

• Part of 2.4GHz Chipset

• Digital Communication Systems

• Portable Battery-Powered Equipment

• Spread-Spectrum Communication Systems • UHF Digital and Analog Receivers

Product Description

The RF2444 is a monolithic integrated UHF receiver front

end suitable for 2.4GHz ISM band applications. The IC

contains all of the required components to implement the

RF functions of the receiver except for the passive filter-

4.90

+ 0.20

ing and LO generation. It contains an LNA (low-noise

amplifier), a second RF amplifier and a doubly balanced

mixer. The output of the LNA is made available as an out-

put to permit the insertion of a bandpass filter between

the LNA and the RF/Mixer section. The mixer outputs can

be selectively disabled to allow for the IF filter to be used

8° MAX

in the transmit mode.

0° MIN

3.90

+ 0.10

0.25

+ 0.05

0.65

-A-

0.05

+ 0.05

Note 3

NOTES:

1. Shaded lead is pin 1.

2. Lead coplanarity - 0.10 with

respect to datum "A".

3. Lead standoff is specified from the

lowest point on the package underside.

6.00

+ 0.20

Dimensions in mm.

1.40

+ 0.10

3.302

EXPOSED DIE

FLAG

8

0.60

0.24

+ 0.15

0.20

2.286

Optimum Technology Matching® Applied

Si BJT

üSi Bi-CMOS

GaAs HBT

SiGe HBT

GaAs MESFET

Si CMOS

GAIN SEL 1

LNA IN 2

PD 3

VCC1 4

VCC2 5

MIX OUT- 6

MIX OUT+ 7

LO IN 8

LNA

Bias

Circuits

RF AMP

MIXER

BACKSIDE GND

16 VCC4

15 LNA OUT

14 NC

13 NC

12 MIXIN

11 GND3

10 VCC3

9 RX EN

Package Style: SSOP-16 EDF Slug

Features

• Single 2.7V to 3.6V Power Supply

• 2400MHz to 2500MHz Operation

• Two Gain Settings: 28dB or 12dB

• 4.5dB Cascaded NF, High Gain Mode

• 20mA DC Current Consumption

• Input IP3: -23dBm or -8dBm

Ordering Information

RF2444

High Frequency LNA/Mixer

RF2444 PCBA-H Fully Assembled Evaluation Board (2.5GHz)

Functional Block Diagram

RF Micro Devices, Inc.

7625 Thorndike Road

Greensboro, NC 27409, USA

Tel (336) 664 1233

Fax (336) 664 0454

http://www.rfmd.com

Rev A3 010717

8-53

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