DMJxxxx Alpha, DMJxxxx Datasheet - Page 2

• Manufacturer Part Number: DMJxxxx
• Description: Silicon Beam-Lead and Chip Schottky Barrier Mixer Diodes
• Manufacturer: Alpha

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Alpha Industries
Figure 1. Typical Forward DC Characteristics
Figure 2. Typical Forward DC Characteristic
0.005
0.002
0.001
0.005
0.002
0.001
10.0
0.05
0.02
0.01
10.0
0.05
0.02
0.01
5.0
2.0
1.0
0.5
0.2
0.1
5.0
2.0
1.0
0.5
0.2
0.1
0
0
Band
Curves – Voltage vs. Current
Curves – Voltage vs. Current
Ku
P–Type Zero
S
C
X
Driver (DMJ)
N–Type HIgh
1 Junctions
Bias
0.480
120
Forward Voltage (mV)
Forward Voltage (mV)
0.960
240
N–Type HIgh
Driver (DMJ)
2 Junctions
P–Type Low
Drive (DMB)
Fax
1.44
N–Type Low
360
Drive (DMF)
Frequencies
2 to 4
4 to 8
8.2 to 12.4
12.4 to 18.0
Medium Drive
N–Type
(DME)
1.92
480
N–Type HIgh
Driver (DMJ)
3 Junctions
2.40
600
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Ordering Information
To order a packaged diode, simply append the part
number to the package outline number. For example,
a Medium Drive Ring Quad, Ku band (part number
DME2859–000) in a 234 package would be ordered
as DME2859–234.
SIG Input
SIG Input
LO Input
LO Input
NF
dB
12.0
11.0
10.0
9.0
8.0
7.0
6.0
Single Ended Mixer
Balanced Mixer
Double Balanced Mixer
LO Input
Figure 3. Typical X–Band Low Drive Mixer
700
600
500
400
300
200
100
ZIF
Diode – RF Parameters vs. Local
0.01
Figure 4. Typical Mixer Circuits
Coupler
Coupler
Hybrid
Silicon Beam–Lead Schottky Barrier Mixer Diodes
3 dB
ZIF
NF
CC
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Local Oscillator Driver (mW)
Oscillator Drive
0.05 0.1 0.2 0.5 1.0 2.0 5.0 10.0
Matching
M.N.
M.N.
Network
IF Output
DME, DMF and DMJ Series
RF Bypass
RF Bypass
DC Retrun
IF Output
SIG Input
IF Output
CC
CC
mA
6.0
5.0
4.0
3.0
2.0
1.0
0
3–13