Intermodulation Ratio is Insensitive to Port Mismatches
VSWR: <2.0:1 Typical Midband
Isolation: 35 dB Typical Midband
Impedance: 50 Ohms Nominal
Maximum Input Power: 350 mW Max @ 25°C, Derated
to 85°C @ 3.2 mW/°C
LO Power: +24 dBm Max.
MIL-STD-883 Screening Available
Description
The unique design of the termination insensitive mixer
(TIM) enables it to apply high reverse voltage to diodes
during their “off” phase, in the LO cycle. This allows for
higher power level performance with minimum distortion.
In addition the TIM has internal loads that provide a good
match and also absorb mixer generated LO frequency
terms. Combined, these features give the mixer its
insensitivity to external mismatches, plus superior VSWR.
C-7 (MDC-179)
Pin Configuration (MD-179)
Pin No.
1
2
3
4
Function
GND
GND
GND
IF
Pin No.
5
6
7
8
Function
LO
GND
GND
RF
1
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for additional data sheets and product information.
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MD- / MDC-179
Termination Insensitive Mixer,
1 - 4000 MHz
Electrical Specifications
1
: T
A
= -55°C to +85°C
Parameter
Frequency Range
Conversion Loss
2,3
Test Conditions
RF, LO Ports
IF Port
Frequency
1 - 4000
5 - 1500
5 - 1000 MHz
5 - 2500 MHz
5 - 3500 MHz
1 - 4000 MHz
LO to RF
LO to IF
RF to IF
RF Input
SSB Noise Figure
Typical Two-Tone IM
Ratio
3rd Order
Intermodulation Ratio
Degradation
1 dB Compression
1 dB Desensitization
Within 1 dB of Conversion Loss
Max
with a –10 dBm input, each tone
60 MHz IF
@ IF VSWR 3:1
5 - 1000 MHz
1 - 4000 MHz
5 - 1000 MHz
1 - 4000 MHz
10 - 500 MHz
1 - 4000 MHz
—
—
—
10 MHz
500 MHz
3000 MHz
—
Units
MHz
MHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
—
dB
dB
dB
dB
Min
—
—
—
—
—
—
30
20
30
20
30
16
—
—
—
—
—
—
—
Typ
—
—
—
—
—
—
—
—
—
—
—
—
+5
+3
—
49
52
50
3
Max
—
—
7.5
8.5
9.5
10.5
—
—
—
—
—
—
—
—
—
—
—
—
—
Rev. V3
Isolation
1. All specifications apply when operated at +7 dBm available LO power with 50 Ohm source and load impedance.
2. For IF Frequencies of 5 - 300 MHz and RF of –10 dBm or less.
3. For MDC-179, add 1.0 dB to conversion loss.
This product contains elements protected by United States Patent Number 4,224,572.
Typical Performance Curves
Conversion Loss - LO @ +7 dBm,
IF @ 60 MHz
11
60
50
Isolation - Input +7 dBm
R-I
L- I
L- R
Conversion Loss (dB)
10
9
8
7
6
5
0
3
30
1000
3000
4500
Isolation (dB)
40
30
20
10
0
0
3
30
1000
3000
4500
F re que nc y (M H z)
F re que nc y ( M H z)
2
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MD- / MDC-179
Termination Insensitive Mixer,
1 - 4000 MHz
Typical Performance Curves
Conversion Loss vs. LO Power - RF
@ 2000 MHz
–10
dBm, IF @ 60 MHz
3rd Order Intermod. Ratio
(dB)
Rev. V3
3rd Order IM Ratio - Input +7 dBm
IF Po r t T er minat ed
wit h 3 .0 :1 M ismat ch
60
IF Po r t M at ch
Conversion Loss (dB)
10
9
8
7
6
5
4
0
2
4
6
8
10
12
14
55
50
45
40
0.3
3.0
30.0
1000.0
3000.0
4500.0
LO P o wer (dB m)
F re que nc y ( M H z)
VSWR
IF
3
RF
LO
2.0
IF Port Response
IF Port Response
2.5
1.5
VSWR
2
1.0
1.5
0.5
1
0
3
30
1000
3000
4500
0.0
0
3
30
1000
3000
4500
F re que nc y ( M H z)
IF F re que nc y ( M H z)
Ordering Information
Part Number
MD-179 PIN
MDC-179 SMA
Package
FP-2
C-7
3
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MD- / MDC-179
Termination Insensitive Mixer,
1 - 4000 MHz
Rev. V3
M/A-COM Technology Solutions Inc. All rights reserved.
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4
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.