
High Level Termination Insensitive
V 3.00
Mixer, 1 - 3500 MHz
MD-/MDS-189
Features
n Operates Over Full PCN/PCS/PHS/MSS Bands
n Low Conversion Loss
n Hermetic Flatpack Package
n Intermodulation Ratio Insensitive to System
Mismatches
n VSWR: < 2.0:1 Typical Midband
n Isolation: 35 dB Typical Midband
n High IIP
(+28 dBm Typical 1 - 3500 MHz)
3
Description
M/A-COM’s MD-189 and MDS-189 are high level
termination insensitive mixers. These devices are packaged
in 8-lead flatpack and SMT packages. These mixers offer
consistent and repeatable flat intermodulation performance
and flat conversion loss with low spurious signal generation
independent of system mismatch from 1 to 3500 MHz. The
MD-189 and MDS-189 are ideally suited for RF/IF
communications applications requiring high intercept point
performance.
SF-1 (MDS-189)
FP-2 (MD-189)
Pin Configuration (MD-189)
Pin No. Function Pin No. Function
1 GND 5 LO
2 GND 6 GND
3 GND 7 GND
4 IF 8 RF
Pin Configuration (MDS-189)
Pin No. Function Pin No. Function
1 GND 3 LO
2 IF 4 RF
Absolute Maximum Ratings 1
Parameter
Max Input Power 2
Total Power
LO Power +27 dBm
1. Operation of this device above any one of these
parameters may cause permanent damage.
2. Ambient Temperature (TA) = +25°C
Absolute Maximum
0.5W Derated to 85°C
@ 3.2 mW/°C

High Level Termination Insensitive Mixer, 1 - 3500 MHz
Electrical Specifications1: TA = -55°C to +85°C,
Frequency: RF, LO Ports = 1 - 3500 MHz, IF Port = 5 - 1500 MHz
Parameter Test Conditions Frequency Units Min Typ Max
MD-/MDS-189
V 3.00
Conversion Loss LO @ 23 dBm
IF @ 60 MHz
Isolation LO to RF 1 - 2000 MHz
LO to IF 1 - 2000 MHz
RF to IF 10 - 500 MHz
Input Compression
(1 dB)
LO @ 23 dBm
IF @ 60 MHz
IIP3 LO @ 23 dBm
IF @ 60 MHz
Desensitivity (1 dB) LO @ 23 dBm
IF @ 60 MHz
SSB Noise Figure LO @ 23 dBm
IF @ 60 MHz
Within 1 dB of conversion loss
Bottom View of SF-1
5 - 1000 MHz
1000 - 3000 MHz
1 - 3500 MHz
1 - 3500 MHz
1 - 3500 MHz
1 - 3500 MHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
—
—
—
30
25
25
20
30
15
— dBm — +20 —
— dBm — +28 —
— dBm —
— — — — —
Typical Performance Curves
Isolation - Input +23 dBm
6.5
7.5
8.0
35
30
30
25
35
20
7.0
8.5
9.5
—
—
—
—
—
—
+17 —
.385 Ref
.002
.000
.165
.220
.000
.002
.080
4X .016 ± .002
.506
.143
.205
.305
.367
.430
6X .050 (+.020/-.000)
.510 Ref
4X .099 ± .010
.381
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.
L-IL-R R-I
60
50
40
30
20
Isolation (dB)
10
0
0 1 3 10 30 100 1000 2000 3000 4000
Frequency (MHz)
2

High Level Termination Insensitive Mixer, 1 - 3500 MHz
Typical Performance Curves
MD-/MDS-189
V 3.00
Conversion Loss vs. LO Power -
RF @ 2000 MHz 0 dBm, IF @ 60 MHz
10
9
8
7
6
Conversion Loss (dB)
5
4
0 15 17 19 21 23 25 27
LO Power (dBm)
3rd Order IM Ratio - LO @ +23 dBm,
IF Port Terminated
with 3.0:1 Mismatch
65
60
IF Port Matched
Conversion Loss - LO @ +23 dBm,
IF @ 60 MHz
10
9
8
7
6
Conversion Loss (dB)
5
4
0 1 3 10 30 100 1000 2000 3000 4000
Frequency (MHz)
VSWR
LOIF RF
3.0
2.5
55
50
3rd Order IM Ratio (dB)
45
0 1 3 10 30 100 1000 2000 3000 4000
Frequency (MHz)
IF Port Response
2.0
1.5
1.0
0.5
Relative Loss (dB)
0.0
0.3 5.0 50.0 1000.0 3000.0
Frequency (MHz)
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.
2.0
1.5
3rd Order Intercept (dBm)
1.0
0 1 3 10 30 100 1000 2000 3000 4000
Frequency (MHz)
Ordering Information
Part Number Package
MD-189 PIN FP-2
MDS-189 PIN SF-1
3