Dual Mode Cellular Downconverter

869 - 893 MHz

MADCSM0011

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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.

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

V2

2

Electrical Specifications

Parameter

Test Conditions

Units

Min

Typ

Max

Conversion Gain

LO Pin = -10 dBm

dB

10

12.5

15

Noise Figure

LO Pin = -10 dBm

dB

—

7.5

—

Input Intercept Point

LO Pin = -10 dBm

dBm

6

8

—

Return Loss

RF, LO Pin = -10 dBm

LO, LO Pin = -10 dBm

dB

dB

—

—

12

13

—

—

Isolation

RF to IF, LO Pin = -10 dBm

LO to IF, LO Pin = -10 dBm

dB

dB

25

18

36

21

—

—

LO Pin = -10 dBm

mA

—

12

15

4. All measurements are for both output modes.

Recommended PCB Configuration

Sample Board Schematic

External Circuitry Parts List

Part

Value

Purpose

C1

2.7 pF

Mixer Input RF Matching

C2

1000 pF

Mixer to IFA Matching

C3,C5,

C10,C12

0.1 µF

C4

0.1 µF

IFA Source Bypass

C6,C8

33 pF

IFA Output Matching

C7,C9

12 pF

IFA Output Matching

C11

0.1 µF

Vmode Bypass

L1

16 nH

Mixer Input RF Matching

L2

270 nH

Mixer to IFA Matching

L3

15 nH

LOA Input Matching

L4

15 nH

LOA Matching

L5,L6

150 nH

IFA Output Matching

R1

34 Ohms

IFA Source Resistor

Case

Size

0402

0402

0402

0402

0402

0402

0402

0603

0603

0603

0603

0603

0402