Flatpack Double-Balanced Mixer,
0.6 - 3 GHz
V 3.00
MD-156
Features
n Noise Figure: 6.5 Typical
n LO-RF Isolation: 30 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
Conversion Loss and
SSB Noise Figure
Isolation LO to RF
DC Polarity Negative — — — — —
DC Offset — — mV — <6 —
RF Input 1 dB Compression
SSB Noise Figure Within 1 dB of Conversion Loss
Typical Two-Tone IM
Ratio
1. All specifications apply when operated at +7 dBm available LO power with 50 ohm source and load impedance.
With –10 dBm input, each input 25
IF Port
800 - 2000 MHz
LO to IF
1 dB Desensitization
Max.
MHz and 35 MHz IF
600 - 3000
DC - 1000
600 - 3000 MHz
600 - 2000 MHz
2000 - 3000 MHz
600 - 2000 MHz
2000 - 3000 MHz
dBm
— — — — —
800 MHz
1500 MHz
2500 MHz
MHz
MHz
dB
dB
dB
dB
dB
dB
dBm
dB
dB
dB
—
—
—
—
25
20
20
17
—
—
—
—
—
—
—
—
—
—
—
—
—
0
-4
44
40
40
—
—
8.0
9.0
—
—
—
—
—
—
—
—
—
Flatpack Double-Balanced Mixer, 0.6 - 3 GHz
Typical Performance Curves
MD-156
V 3.00
Conversion Loss
10
8
6
Conversion Loss (dB)
4
0.5 1.0 1.5 2.0 2.5 3.0 3.5
Frequency (GHz)
Conversion Loss vs. LO Power
9
8
7
Loss (dB)
6
Isolation
L - R L - X
40
35
30
Isolation (dB)
25
20
0.5 1.0 1.5 2.0 2.5 3.0 3.5
Frequency (GHz)
IF Port Response
2.0
1.5
1.0
0.5
IF Port Response
5
0.0 2.0 4.0 6.0 8.0 10.0 12.0
LO Power (dBm)
Ordering Information
Part Number Package
MD-156 PIN FP-2
Specifications subject to change without notice.
n North America: Tel. (800) 366-2266
n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
0.0
0 250 500 1000 1250 1500 2000
IF Frequency (MHz)
2