ALPHA AM028S1-00 Datasheet
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com 1
Specifications subject to change without notice. 2/00A
26–33 GHz GaAs MMIC Single
Balanced Down Converter Mixer
Features
■ Low Conversion Loss, 6.0 dB
■ Low LO Power Requirement, 8 dBm
■ Wide IF Bandwidth, 0–5 GHz
■ No DC Bias Required
Description
Alpha’s single balanced GaAs Schottky diode mixer has
a typical conversion loss of 6.0 dB at an LO power level
as low as 8 dBm over the band 26–33 GHz.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.
Dimensions indicated in mm.
All pads are ≥ 0.07 mm wide.
Chip thickness = 0.1 mm.
Chip Outline
Parameter Symbol Min. Typ.
2
Max. Unit
RF and LO Frequency Range FRF, F
LO
26–33 GHz
IF Frequency Range F
IF
0–5 GHz
LO Power Level P
LO
8–18 dBm
Conversion Loss
1
L
C
6dB
RF and LO Return Loss
1
RLRF, RL
LO
20 dB
LO to RF Isolation
1
ISO
LO-RF
12 dB
LO to IF Isolation
1
ISO
LO-IF
35 dB
RF Input 1 dB Compression Point
1
P
1 dB
10 dBm
Individual Diode Series Resistance R
S
3.3 Ω
Electrical Specifications at 25°C
OHMIC ADDED 9-4-92OHMIC ADDED 9-4-92
OHMIC ADDED 9-4-92OHMIC ADDED 9-4-92
0.000
0.000
0.780
1.760
1.740
1.426
1.407
Absolute Maximum Ratings
Characteristic Value
Operating Temperature -55°C to +125°C
Storage Temperature -65°C to +150°C
Total Input Power (RF + LO) 20 dBm
AM028S1-00
1. Not measured on a 100% basis.
2. Typical represents the median parameter value across the specified
frequency range for the median chip.
26–33 GHz GaAs MMIC Single Balanced Down Converter Mixer AM028S1-00
2 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
46 81012141618
Performance vs. LO Power
F
RF
= 28 GHz, FLO = 27 GHz, PRF = -10 dBm
4
6
8
10
12
14
LO Power (dBm)
Conversion Loss (dB)
0
10
20
30
40
50
Return Loss & Isolation (dB)
Conversion Loss
LO Return Loss
LO to RF Isolation
LO to IF Isolation
01234 1089765
Performance vs. IF Frequency
F
RF
= 28 GHz, FLO = FRF + FIF, PLO = 10 dBm
4
6
8
10
12
14
IF Frequency (GHz)
Conversion Loss (dB)
OHMIC ADDED 9-4-92OHMIC ADDED 9-4-92
IF
RF
LO
90˚ Phase Shifter/Splitter
IF
RF LO
Performance vs. LO Frequency
F
RF
= FLO + 1 GHz, PRF = 10 dBm
LO Frequency (GHz)
Conversion Loss (dB)
0
10
20
30
40
50
Return Loss & Isolation (dB)
4
6
8
10
12
14
25 26 27 28 29 30 31 32 33 34
Conversion Loss
LO Return Loss
LO to RF Isolation
LO to IF Isolation
Typical Performance Data
Wire Bonding Configuration
Circuit Schematic
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