26–33 GHz GaAs MMIC
Image Rejection Balanced Mixer
AM028R1-00
Features
I
Low Conversion Loss, 8 dB
I
Insensitive to LO Power Variations
OHMIC ADDED 9-4-92
Chip Outline
2.155
I
Image Rejection, 20 dB
I
No DC Bias Required
OHMIC
ADDED 9-4-92
1.563
I
Requires External IF 90° Hybrid
1.061
1.060
Description
Alpha’s image rejection balanced GaAs Schottky diode
mixer has a typical conversion loss of 8 dB at an LO power
level as low as 11 dBm over the band 26–33 GHz. An
external 90° IF hybrid is required to combine the IF
1
and
IF
2
signals at the desired IF frequency. The chip uses
Alpha’s proven Schottky diode technology, and is based
upon MBE layers for the highest uniformity and
repeatability. The diodes employ surface passivation to
ensure a rugged, reliable part with through-substrate via
holes and gold-based backside metallization to facilitate
an epoxy die attach process. All chips are screened for
DC diode parameters and lot samples are RF measured
to guarantee performance. This device is recommended
for applications requiring down conversion.
0.000
0.000
0.381
1.119
1.270
2.008
0.610
SMHO 05
0.085
2.320
Dimensions indicated in mm.
All pads are
≥
0.07 mm wide.
Chip thickness = 0.1 mm.
Absolute Maximum Ratings
Characteristic
Operating Temperature
Storage Temperature
Total Input Power (RF + LO)
Value
-55°C to +125°C
-65°C to +150°C
23 dBm
Electrical Specifications at 25°C
Parameter
RF and LO Frequency Range
IF Frequency Range
LO Power Level
Conversion Loss
1
Image
Rejection
1
Isolation
1
Point
1
RF and LO Return Loss
1
LO to RF
LO to IF Isolation
1
RF Input 1 dB Compression
Individual Diode Series Resistance
1. Not measured on a 100% basis.
2. Typical represents the median parameter value across the specified
frequency range for the median chip.
Symbol
F
RF
, F
LO
F
IF
P
LO
L
C
IR
RL
RF
, RL
LO
ISO
LO-RF
ISO
LO-IF
P
1 dB
R
S
Min.
Typ.
2
26–33
0–3
11–19
8
20
17
18
30
12
Max.
Unit
GHz
GHz
dBm
dB
dB
dB
dB
dB
dBm
3.0
Ω
Alpha Industries, Inc.
[781] 935-5150
•
Fax
[617] 824-4579
•
Email
sales@alphaind.com
•
www.alphaind.com
Specifications subject to change without notice. 2/00A
1
ALPHA [ ALPHA INDUSTRIES ]
