Double-Balanced Mixer,
500 KHz - 500 MHz
V 3.00
MD-124
Features
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FP-2
Usable down to 200 KHz
Conversion Loss: 6.5 dB Typical
Impedance: 50 Ohms Nominal
Maximum Input Power: 300 mW max. @ 25°C,
Derated to 85°C @ 3.2 mW/°C
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IF Port Current: 50 mA Max.
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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.
1
2
3
4
Function
GND
GND
GND
IF
Pin No.
5
6
7
8
Function
LO
GND
GND
RF
Electrical Specifications
1
: T
A
= -55°C to +85°C
Parameter
Frequency Range
Conversion Loss
Isolation
LO to RF
0.5 - 10 MHz
10 - 200 MHz
200 - 500 MHz
0.5 - 10 MHz
10 - 200 MHz
200 - 500 MHz
0.5 - 10 MHz
10 - 200 MHz
200 - 500 MHz
—
—
Test Conditions
RF, LO Ports
IF Port
Frequency
0.5 - 500
DC - 500
Units
MHz
MHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
—
mV
dBm
dBm
Min
—
—
—
35
30
25
30
25
20
25
15
15
—
—
—
—
Typ
—
—
—
—
—
—
—
—
—
—
—
—
—
<3
+2
-2
Max
—
—
7.0
—
—
—
—
—
—
—
—
—
—
—
—
—
LO to IF
RF to IF
DC Polarity
DC Offset
RF Input
Negative
—
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.
Double-Balanced Mixer, 500 KHz - 500 MHz
Electrical Specifications: T
A
= -55°C to +85°C
Parameter
SSB Noise Figure
Typical Two Tone IM
Ratio
Test Conditions
Within 1 dB of Conversion Loss
Max.
With –10 dBm input, each input 25
MHz and 35 MHz IF
Frequency
—
100 - 400 MHz
400 - 500 MHz
Units
—
dB
dB
Min
—
—
—
Typ
—
>50
>40
MD-124
V 3.00
Max
—
—
—
Typical Performance Curves
Conversion Loss (LO = +7 dBm,
RF = -5 dBm)
7
50
45
Isolation
LO - RF
LO - IF
RF - IF
Conversion Loss (dB)
Isolation (dB)
0.2
1
5
20
50
100
300
500
700
40
35
30
25
6
5
20
0.2
1
5
20
50
100
300
500
700
Frequency (MHz)
Frequency (MHz)
Conversion Loss vs. LO Power
(LO = 35 MHz, RF = 30 MHz @ -20
dBm, IF = 5 MHz)
11
10
Ordering Information
Part Number
MD-124 PIN
Package
FP-2
Loss (dB)
9
8
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.
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North America:
Tel. (800) 366-2266
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Asia/Pacific:
Tel.+81-44-844-8296, Fax +81-44-844-8298
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Europe:
Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
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