RF2870PCBA datasheet(1/14 Pages) RFMD

部件名	RF2870PCBA

功能描述	CDMA LOW NOISE AMPLIFIER/MIXER 900MHz DOWNCONVERTER

PDF	14 Pages

Scroll/Zoom	100%

制造商	RFMD [RF Micro Devices]

网页	http://www.rfmd.com

标志

1 / 14 page

8-1

Product Description

Ordering Information

Typical Applications

Features

Functional Block Diagram

RF Micro Devices, Inc.

7628 Thorndike Road

Greensboro, NC 27409, USA

Tel (336) 664 1233

Fax (336) 664 0454

http://www.rfmd.com

Optimum Technology Matching® Applied

Si BJT

GaAs MESFET

GaAs HBT

Si Bi-CMOS

SiGe HBT

Si CMOS

InGaP/HBT

GaN HEMT

SiGe Bi-CMOS

16

15

14

13

11

12

9

10

5

6

7

8

2

1

4

3

IF OUT+

IF OUT-

GND

LO IN

LNA GAIN

LNA IN

LNA EMITTER

LNA OUT

RF2870

CDMA LOW NOISE AMPLIFIER/MIXER

900MHz DOWNCONVERTER

• CDMA Cellular Systems

• JCDMA Cellular Systems

• AMPS Cellular Systems

• General Purpose Downconverter

• Commercial and Consumer Systems

• Portable Battery-Powered Equipment

The RF2870 is a receiver front-end for CDMA cellular

applications. It is designed to amplify and downconvert

RF signals, while providing 28.5dB of stepped gain con-

trol range. Features include digital control of LNA gain,

mixer gain, and power down mode. Another feature of the

chip is adjustable IIP3 of the mixer using an off-chip cur-

rent setting resistor. Noise figure, IP3, and other specs

are designed to be compatible with the IS-98B interim

standard for CDMA cellular communications. The IC is

manufactured on an advanced Silicon Germanium Bi-

CMOS process and is assembled in a 3mmx3mm, 16-

pin, QFN package.

• 3mmx3mm LNA/Mixer Solution

• Adjustable Mixer Current/IIP3

• Meets IMD Tests with Three Gain

States/Two Logic Control Lines

• Integrated TX LO Buffer Amplifier

• All Pins ESD Protected

RF2870

CDMA Low Noise Amplifier/Mixer 900MHz Downcon-

verter

RF2870 PCBA

Fully Assembled Evaluation Board

0

Rev A8 030507

0.90

0.85

0.05 C

0.05

0.00

0.70

0.65

12°

MAX

-C-

SEATING

PLANE

1.50 TYP

0.10 C A

2 PLCS

-A-

3.00

0.10 C B

2 PLCS

1.37 TYP

0.10 C A

2 PLCS

2.75 SQ

0.10 C B

2 PLCS

3.00

-B-

0.60

0.24

TYP

0.50

0.30

PIN 1 ID

R.20

0.50

1.65

1.35

SQ.

0.10

C AB

M

0.30

0.18

2

NOTES:

1. Shaded lead is pin 1.

Dimension applies to plated terminal: to be measured

between 0.20 mm and 0.25 mm from terminal end.

2

Dimensions in mm.

Package Style: QFN, 16-Pin, 3x3

类似零件编号 - RF2870PCBA

制造商	部件名	数据表	功能描述
RF Micro Devices	RF2878	197Kb / 12P	3V LOW NOISE AMPLIFIER/ 3V PA DRIVER AMPLIFIER
RF Micro Devices	RF2878	282Kb / 11P	3V LOW NOISE AMPLIFIER/ 3V PA DRIVER AMPLIFIER
Qorvo, Inc	RF2878	492Kb / 14P	3V LOW NOISE AMPLIFIER/ 3V PA DRIVER AMPLIFIER 27 January 2003
RF Micro Devices	RF2878PCBA-D	197Kb / 12P	3V LOW NOISE AMPLIFIER/ 3V PA DRIVER AMPLIFIER
RF Micro Devices	RF2878PCBA-D	282Kb / 11P	3V LOW NOISE AMPLIFIER/ 3V PA DRIVER AMPLIFIER

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类似说明 - RF2870PCBA

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RF Micro Devices	RF2449	288Kb / 14P	CDMA/FM LOW NOISE AMPLIFIER/MIXER 900MHZ DOWNCONVERTER
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Maxim Integrated Produc...	MAX2685	188Kb / 10P	Low-Cost, 900MHz, Low-Noise Amplifier and Downconverter Mixer 19-1493; Rev 0; 7/99
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	RF2461	355Kb / 12P	CDMA/FM LOW NOISE AMPLIFIER/MIXER 900MHz DOWNCONVERTER
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Maxim Integrated Produc...	MAX2685	174Kb / 10P	Low-Cost, 900MHz, Low-Noise Amplifier and Downconverter Mixer Rev 1; 12/00
RF Micro Devices	RF2861	773Kb / 15P	CDMA LOW NOISE AMPLIFIER/MIXER 900MHz DOWNCONVERTER