Surface Mount Double-Balanced
Mixer, 10 - 500 MHz
V 3.00
MDS-223
Features
Fully Hermetic Package
Low Cost
Conversion Loss: 7 dB Typical Midband
Impedance: 50 Ohms Nominal
Maximum Input Power: 400 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
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SF-1
Description
Transformers convert the LO and RF paths to balanced
lines connecting to 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
Function
GND
IF
Pin No.
3
4
Function
LO
RF
Electrical Specifications
1
: T
A
= -55°C to +85°C
Parameter
Frequency Range
Conversion Loss
Isolation
LO to RF
LO to IF
RF to IF
DC Polarity
DC Offset
RF Input
SSB Noise Figure
Typical Two-Tone IM
Ratio
Negative
—
1 dB Compression
1 dB Desensitization
Within 1 dB of Conversion Loss
Max
with a –10 dBm input, each input,
25 MHz and 35 MHz IF
Test Conditions
RF, LO Ports
IF Port
Frequency
10 - 500
DC - 500
5 - 150 MHz
150 - 500 MHz
5 - 150 MHz
150 - 500 MHz
5 - 150 MHz
150 - 500 MHz
5 - 150 MHz
150 - 500 MHz
—
—
—
—
—
100 - 350 MHz
350 - 500 MHz
Units
MHz
MHz
dB
dB
dB
dB
dB
dB
dB
dB
—
mV
dBm
dBm
—
dB
dB
Min
—
—
—
40
35
35
25
25
20
—
—
—
—
—
—
—
Typ
—
—
—
—
—
—
—
—
—
—
<1
+2.5
0
—
55
40
Max
—
7.0
9.0
—
—
—
—
—
—
—
—
—
—
—
—
—
1. All specifications apply when operated at +7 dBm available LO power with 50 ohm source and load impedance.
Surface Mount Double-Balanced Mixer, 10 - 500 MHz
Bottom View of SF-1
6X .050 (+.020/-.000)
4X .099 ± .010
MDS-223
V 3.00
Typical Performance Curves
Conversion Loss (LO = +7 dBm,
RF = -5 dBm, IF = 5 MHz)
8
4X .016 ± .002
.506
.385 Ref
Conversion Loss (dB)
7
.220
.165
.381
6
.002
.000
5
5
.367
.143
.080
.205
.305
.430
.510 Ref
.000
.002
10
20
50
100
200
300
400
500
Frequency (MHz)
Isolation (Input = +7 dBm)
L-R
60
L-X
R-X
Conversion Loss vs. LO Power
(RF = 200 MHz, RF = 140 MHz @
-10 dBm, IF = 60 MHz)
10
50
Conversion Loss (dB)
Isolation (dB)
8
40
6
30
20
5
10
20
50
100
200
300
400
500
4
-10
-5
0
5
10
15
Frequency (MHz)
LO Power (dBm)
Ordering Information
Part Number
MDS-223 PIN
Package
SF-1
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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