M A COM MD-158PIN Datasheet

Double-Balanced Mixer,
5 - 1500 MHz

V 3.00

MD-158

Features

n Low VSWR
n Conversion Loss: 6 dB Typical Midband
n LO-RF Isolation: 35 dB Typical Midband
n Conversion Loss Flatness: 1.5 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. Advanced
transformer design yields improved VSWR.

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 5 - 1500 MHz

Isolation LO to RF 5 - 1500 MHz

LO to IF 5 - 1500 MHz

RF to IF 5 - 1500 MHz

DC Polarity Negative — — — — —

DC Offset — — mV — <1 —

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.

5 - 1500

DC - 1000

5 - 1000 MHz

5 - 1000 MHz

5 - 600 MHz

5 - 1000 MHz

5 - 1000 MHz

5 - 600 MHz

dBm

MHz
MHz

dB
dB

dB
dB
dB

dB
dB

dB
dB
dB

dBm

—
—

—
—

20
25
30

17
20

8
18
20

—
—

—
—

—
—

—
—
—

—
—

—
—
—

+1

-1

—
—

9
7

—
—
—

—
—

—
—
—

—
—

Double-Balanced Mixer, 5 - 1500 MHz

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

Parameter Test Conditions Frequency Units Min Typ Max

MD-158

V 3.00

SSB Noise Figure Within 1 dB of Conversion Loss

Max.

Typical Two-Tone IM

Ratio

With –10 dBm input, each input 60

MHz and 70 MHz IF

Typical Performance Curves

Conversion Loss

8

7

6

Conversion Loss (dB)

5

2 5 10 200 400 600 800 1000 1200 1400 1600

Frequency (MHz)

VSWR

RF IF LO

2.5

— — — — —

300 MHz

1000 MHz

dB
dB

—

—

50
48

Isolation

60

50

40

30

Isolation (dB)

20

10

2 5 10 200 400 600 800 1000 1200 1400 1600

LO - RF LO - IF RF - IF

Frequency (MHz)

Conversion Loss vs. LO Power (RF
@ 1000 MHz—10 dBm, IF = 50 MHz)

9

—
—

2.0

VSWR

1.5

1.0
2 5 10 200 400 600 800 1000 1200 1400 1600

Frequency (MHz)

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.

8

Loss (dB)

7

6

0.0 2.0 4.0 6.0 8.0 10.0 12.0

LO Power (dBm)

2