PCS LNA/Downconverter

1800-2000 MHz

MADCSM0012

M/A-COM Inc. and its affiliates reserve the right to make changes to the

product(s) or information contained herein without notice. M/A-COM makes

no warranty, representation or guarantee regarding the suitability of its

products for any particular purpose, nor does M/A-COM assume any liability

whatsoever arising out of the use or application of any product(s) or

information.

• North America Tel: 800.366.2266 / Fax: 978.366.2266

• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300

• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298

Visit www.macom.com for additional data sheets and product information.

V2

1

Features

• Highly Integrated LNA and Downconverter

• 3mm 16-Lead PQFN

• Operates over 2.7 V to 5 V Supply Voltage

• Low Noise Figure: 2.3 dB Typical

• High Input Intercept Point: -9 dBm Typical

• Continuous Current Control Downconverter

• Low LO Drive Level: -10 dBm

Description

M/A-COM’s

MADCSM0012

integra t e d

downconverter combines a low noise amplifier, a RF

amplifier, a downconverting mixer, an IF amplifier,

and LO buffer amplifier.

The MADCSM0012 is

packaged in a low cost 3mm 16-Lead PQFN with an

exposed

pad

for

improved

high

frequency

grounding.

M/A-COM designed the MADCSM0012 for handsets

requiring wide dynamic range and low power

consumption. By application of a suitable control

voltage to pin 6, the linearity of the device can be

controlled in real time to keep the current as low as

possible

The MADCSM0012 is fabricated using M/A-COM’s

0.5-micron low noise E/D GaAs MESFET process.

The process features full passivation for increased

performance and reliability.

Functional Block Diagram

2. Exceeding any one or combination of these limits may cause

permanent damage to this device.

3. M/A-COM does not recommend sustained operation near

these survivability limits.

Ordering Information

1

Part Number

Package

MADCSM0012

Bulk Packaging

MADCSM0012TR

Tape and Reel (1K Reel)

MADCSM0012SMB

Sample Test Board

1. Reference Application Note M513 for reel size information.

Absolute Maximum Ratings

2,3

Parameter

Absolute Maximum

Voltage

6 V

Input Power

0 dBm

Operating Temperature

-30°C to +85°C

Storage Temperature

-65°C to +150°C

Pin Configuration

Pin No. Pin Name

Description

1

LNA IN

Input to LNA; RF matching required

2

GND

DC and RF Ground

3

LNA SRC

Source of LNA output stage FET.

RF bypassing required. Off-chip resis-

tor may be used to increase IIP3

4

LNA OUT

50 Ohm LNA output; DC Blocked

5

LNA second stage supply voltage;

RF bypassing required

6

Downconverter bias control.

0 to 3.0 V allowed

7

GND

DC and RF Ground

8

RFA supply voltage;

RF bypassing required

9

GND

DC and RF Ground

10

RFA IN

50 Ohm RFA Input; DC Blocked

11

LOA supply voltage;

RF bypassing required

12

GND

DC and RF Ground

13

LOA IN

Local oscillator input (-10 to –5 dBm)

14

IF OUT

IF Output of downconverter;

IF matching required

15

IFA MATCH

IF matching between mixer and IFA;

required an inductor to ground

16

LNA first stage supply voltage;

RF bypassing required