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
32–37 GHz GaAs MMIC
Ring Hybrid Mixer
Features
■ Low Conversion Loss, 6.0 dB
■ Low LO Power Requirement, 9 dBm
■ High LO to RF Isolation, 28 dB
■ No DC Bias Required
Description
Alpha’s ring hybrid GaAs Schottky diode mixer has a
typical conversion loss of 6.0 dB at an LO power level as
low as 9 dBm over the band 32–37 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
32–37 GHz
IF Frequency Range F
IF
0–3 GHz
LO Power Level P
LO
9–19 dBm
Conversion Loss
1
L
C
6dB
RF and LO Return Loss
1
RLRF, RL
LO
9dB
LO to RF Isolation
1
ISO
LO-RF
28 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
4.0 Ω
Electrical Specifications at 25°C
NUMBOX FO
R M
ASKS MADE O
UTSIDE
2.800
2.027
0.541
2.471
3.195
0.000
0.000
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
AM035N4-00
1. Not measured on a 100% basis.
2. Typical represents the median parameter value across the specified
frequency range for the median chip.
32–37 GHz GaAs MMIC Ring Hybrid Mixer AM035N4-00
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
Performance vs. LO Power
F
RF
= 34.5 GHz, FLO = 35 GHz, PRF = -10 dBm
LO Power (dBm)
Conversion Loss (dB)
0
10
20
30
40
50
Return Loss & Isolation (dB)
4
6
8
10
12
14
7 9 11 13 15 17 19
Conversion Loss
LO Return Loss
LO to RF Isolation
NUMBOX FO
R M
ASKS
MADE O
UTSIDE
IF
RF
LO
30 31 32 33 34 4038 39373635
Performance vs. LO Frequency
F
RF
= FLO - 1.5 GHz, PLO = 12 dBm
4
6
8
10
12
14
LO Frequency (GHz)
Conversion Loss (dB)
Typical Performance Data
Wire Bonding Configurations Circuit Schematic