M A COM MD-124PIN Datasheet

Double-Balanced Mixer,
500 KHz - 500 MHz

V 3.00

MD-124

Features

n Usable down to 200 KHz
n Conversion Loss: 6.5 dB Typical
n Impedance: 50 Ohms Nominal
n Maximum Input Power: 300 mW max. @ 25°C,

Derated to 85°C @ 3.2 mW/°C

n IF Port Current: 50 mA Max.
n MIL-STD-883 Screening Available

Description

Transformers convert to the LO and RF paths to balanced
lines connecting a low barrier, Schottky diode ring quad.
These transformers help provide excellent isolation between
ports. Conversion loss is low. The direct connection of the
IF port to the diode quad allows these mixers to be used as
phase detectors and bi-phase modulators.

Pin Configuration

Pin No. Function Pin No. Function

1 GND 5 LO
2 GND 6 GND
3 GND 7 GND
4 IF 8 RF

FP-2

Electrical Specifications1: TA = -55°C to +85°C

Parameter Test Conditions Frequency Units Min Typ Max

Frequency Range RF, LO Ports

IF Port

Conversion Loss dB — — 7.0

Isolation LO to RF

LO to IF 0.5 - 10 MHz

RF to IF 0.5 - 10 MHz

DC Polarity Negative — — — — —

DC Offset — — mV — <3 —

RF Input 1 dB Compression

1 dB Desensitization

1. All specifications apply when operated at +7 dBm available LO power with 50 ohm source and load impedance.

0.5 - 500
DC - 500

0.5 - 10 MHz

10 - 200 MHz

200 - 500 MHz

10 - 200 MHz

200 - 500 MHz

10 - 200 MHz

200 - 500 MHz

dBm

MHz
MHz

dB
dB
dB

dB
dB
dB

dB
dB
dB

dBm

—
—

35
30
25

30
25
20

25
15
15

—
—

—
—

—
—
—

—
—
—

—
—
—

+2

-2

—
—

—
—
—

—
—
—

—
—
—

—
—

Double-Balanced Mixer, 500 KHz - 500 MHz

Electrical Specifications: TA = -55°C to +85°C

Parameter Test Conditions Frequency Units Min Typ Max

MD-124

V 3.00

SSB Noise Figure Within 1 dB of Conversion Loss

Typical Two Tone IM

Ratio

With –10 dBm input, each input 25

Max.

MHz and 35 MHz IF

Typical Performance Curves

Conversion Loss (LO = +7 dBm,
RF = -5 dBm)

7

6

Conversion Loss (dB)

5

0.2 1 5 20 50 100 300 500 700

Frequency (MHz)

— — — — —

100 - 400 MHz
400 - 500 MHz

dB
dB

—
—

Isolation

LO - RF LO - IF RF - IF

50

45

40

35

30

Isolation (dB)

25

20

0.2 1 5 20 50 100 300 500 700

Frequency (MHz)

>50
>40

—
—

Conversion Loss vs. LO Power
(LO = 35 MHz, RF = 30 MHz @ -20
dBm, IF = 5 MHz)

11
10

9
8

Loss (dB)

7
6
5

-10.0 -7.5 -5.0 -2.5 0.0 2.5 5.0 7.5 10.0

LO Power (dBm)

Specifications subject to change without notice.

n North America: Tel. [phone]
n Asia/Pacific: Tel.[phone], Fax [phone]
n Europe: Tel. [phone], Fax[phone]

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

Ordering Information

Part Number Package

MD-124 PIN FP-2

2