27.0-36.0 GHz GaAs MMIC
Transmitter
May 2005 - Rev 20-May-05
Features
Sub-harmonic Transmitter
Integrated IR Mixer, LO Buffer & Output Amplifier
+20.0 dBm Output Third Order Intercept (OIP3)
2.0 dBm LO Drive Level
20.0 dB Image Rejection, 9.0 dB Conversion Gain
100% On-Wafer RF and DC Testing
100% Visual Inspection to MIL-STD-883 Method 2010
Mimix Broadband’s 27.0-36.0 GHz GaAs MMIC transmitter has a
+20.0 dBm output third order intercept and 20.0 dB image
rejection across the band. This device is an image reject sub-
harmonic anti-parallel diode mixer followed by a three stage
output amplifier and includes an integrated LO buffer amplifier.
The image reject mixer reduces the need for unwanted
sideband filtering before the power amplifier. The use of a sub-
harmonic mixer makes the provision of the LO easier than for
fundamental mixers at these frequencies. I and Q mixer inputs
are provided and an external 90 degree hybrid is required to
select the desired sideband. This MMIC uses Mimix Broadband’s
0.15
µm
GaAs PHEMT device model technology, and is based
upon electron beam lithography to ensure high repeatability
and uniformity. The chip has surface passivation to protect and
provide a rugged part with backside via holes and gold
metallization to allow either a conductive epoxy or eutectic
solder die attach process. This device is well suited for
Millimeter-wave Point-to-Point Radio, LMDS, SATCOM and VSAT
applications.
27TRX0357
Chip Device Layout
Absolute Maximum Ratings
Supply Voltage (Vd)
Supply Current (Id1,Id2)
Gate Bias Voltage (Vg)
Input Power (IF Pin)
Storage Temperature (Tstg)
Operating Temperature (Ta)
Channel Temperature (Tch)
uc
Min.
27.0
27.0
12.0
DC
-
-
-
-
-
-
-
-1.2
-
-
Electrical Characteristics (Ambient Temperature T = 25
o
C)
Parameter
Frequency Range (RF) Upper Side Band
Frequency Range (RF) Lower Side Band
Frequency Range (LO)
Frequency Range (IF)
Output Return Loss RF (S22)
Small Signal Conversion Gain IF/RF (S21)
2
LO Input Drive (P
LO
)
Image Rejection
2
Isolation LO/RF @ LOx1/LOx2
Output Third Order Intercept (OIP3)
1,2
Drain Bias Voltage (Vd1,2)
Gate Bias Voltage (Vg1,2,3)
Supply Current (Id1) (Vd1=4.0V, Vg=-0.3V Typical)
Supply Current (Id2) (Vd2=4.0V, Vg=-0.3V Typical)
(1) Measured using constant current.
(2) Measured using LO Input drive level of +2.0 dBm.
e-
pr
od
(3) Channel temperature affects a device's MTTF. It is
recommended to keep channel temperature as low as
possible for maximum life.
Units
GHz
GHz
GHz
GHz
dB
dB
dBm
dBc
dB
dBm
VDC
VDC
mA
mA
Typ.
-
-
-
-
15.0
9.0
+2.0
20.0
10.0
+20.0
+4.0
-0.3
230
140
Pr
tio
General Description
+4.5 VDC
320, 190 mA
+0.3 VDC
0.0 dBm
-65 to +165
O
C
-55 to MTTF Table
3
MTTF Table
3
Max.
36.0
36.0
19.5
3.0
-
-
-
-
-
-
+4.5
+0.1
280
170
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099
Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Characteristic Data and Specifications are subject to change without notice.
©2005
Mimix Broadband, Inc.
Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept
their obligation to be compliant with U.S. Export Laws.
n
Page 1 of 7
27.0-36.0 GHz GaAs MMIC
Transmitter
May 2005 - Rev 20-May-05
27TRX0357
Transmitter Measurements
0357 (IF = 3GHz, LO = -2, 0, +2dBm):
USB Conversion gain and Image Rejection vs. RF freq
0357 (IF = 3GHz, LO = -2, 0, +2dBm):
LSB Conversion gain and Image Rejection vs. RF freq
14
12
10
8
6
4
2
0
-2 24
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
-24
-26
-28
-30
-32
-34
-36
-38
-40
Conv Gain
, MeasFile=R3C3_0357_+2dBmLO_2302B_USB_9062004_1537.mix
, MeasFile=R3C6_0357_+2dBmLO_2302B_USB_9062004_1542.mix
, MeasFile=R4C4_0357_+2dBmLO_2302B_USB_9062004_1547.mix
LSB Conversion gain (dB)/Image Rejection (dBc)
, MeasFile=R5C2_0357_+2dBmLO_2302B_USB_9062004_1552.mix
, MeasFile=R6C4_0357_+2dBmLO_2302B_USB_9062004_1557.mix
, MeasFile=R3C3_0357_0dBmLO_2302B_USB_9062004_1502.mix
, MeasFile=R3C6_0357_0dBmLO_2302B_USB_9062004_1507.mix
, MeasFile=R4C4_0357_0dBmLO_2302B_USB_9062004_1511.mix
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
, MeasFile=R5C2_0357_0dBmLO_2302B_USB_9062004_1516.mix
, MeasFile=R6C4_0357_0dBmLO_2302B_USB_9062004_1521.mix
, MeasFile=R3C3_0357_-2dBmLO_2302B_USB_9062004_1415.mix
, MeasFile=R3C6_0357_-2dBmLO_2302B_USB_9062004_1419.mix
, MeasFile=R4C4_0357_-2dBmLO_2302B_USB_9062004_1424.mix
, MeasFile=R5C2_0357_-2dBmLO_2302B_USB_9062004_1429.mix
, MeasFile=R6C4_0357_-2dBmLO_2302B_USB_9062004_1433.mix
, MeasFile=R3C3_0357_+2dBmLO_2302B_USB_9062004_1537.mix
, MeasFile=R3C6_0357_+2dBmLO_2302B_USB_9062004_1542.mix
, MeasFile=R4C4_0357_+2dBmLO_2302B_USB_9062004_1547.mix
, MeasFile=R5C2_0357_+2dBmLO_2302B_USB_9062004_1552.mix
, MeasFile=R6C4_0357_+2dBmLO_2302B_USB_9062004_1557.mix
, MeasFile=R3C3_0357_0dBmLO_2302B_USB_9062004_1502.mix
Image Reject
, MeasFile=R3C6_0357_0dBmLO_2302B_USB_9062004_1507.mix
, MeasFile=R4C4_0357_0dBmLO_2302B_USB_9062004_1511.mix
, MeasFile=R5C2_0357_0dBmLO_2302B_USB_9062004_1516.mix
, MeasFile=R6C4_0357_0dBmLO_2302B_USB_9062004_1521.mix
, MeasFile=R3C3_0357_-2dBmLO_2302B_USB_9062004_1415.mix
, MeasFile=R3C6_0357_-2dBmLO_2302B_USB_9062004_1419.mix
, MeasFile=R4C4_0357_-2dBmLO_2302B_USB_9062004_1424.mix
, MeasFile=R5C2_0357_-2dBmLO_2302B_USB_9062004_1429.mix
, MeasFile=R6C4_0357_-2dBmLO_2302B_USB_9062004_1433.mix
Image Reject
RF freq (GHz)
RF freq (GHz)
_0357
(IF=3GHz, LO=-2dBm, Vd1=4V, Id1=230mA, Vd2=4V, Id2=140mA):
IP1dB
16
15
14
13
12
11
IP1dB (dBm)
_0357
(IF=3GHz, LO=-2dBm, Vd1=4V, Id1=230mA, Vd2=4V, Id2=140mA):
OP1dB
16
15
10
9
8
7
6
5
od
13
12
11
10
9
8
7
6
5
4
3
2
1
0
25
26
27
28
29
30
31
RF Freq (GHz)
32
33
34
35
36
37
OP1dB (dBm)
14
uc
tio
14
12
10
8
6
4
2
0
-2 24
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
-24
-26
-28
-30
-32
-34
-36
-38
-40
Conv Gain
, MeasFile=R3C3_0357_+2dBmLO_2302B_LSB_9062004_1608.mix
, MeasFile=R3C6_0357_+2dBmLO_2302B_LSB_9062004_1613.mix
, MeasFile=R4C4_0357_+2dBmLO_2302B_LSB_9062004_1618.mix
, MeasFile=R5C2_0357_+2dBmLO_2302B_LSB_9062004_1623.mix
, MeasFile=R6C4_0357_+2dBmLO_2302B_LSB_9062004_1628.mix
USB Conversion gain (dB)/Image Rejection (dBc)
, MeasFile=R3C6_0357_0dBmLO_2302B_LSB_9062004_1644.mix
, MeasFile=R4C4_0357_0dBmLO_2302B_LSB_9062004_1648.mix
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
, MeasFile=R5C2_0357_0dBmLO_2302B_LSB_9062004_1653.mix
, MeasFile=R6C4_0357_0dBmLO_2302B_LSB_9062004_1658.mix
, MeasFile=R3C3_0357_-2dBmLO_2302B_LSB_9062004_1708.mix
, MeasFile=R3C6_0357_-2dBmLO_2302B_LSB_9062004_1713.mix
, MeasFile=R4C4_0357_-2dBmLO_2302B_LSB_9062004_1717.mix
, MeasFile=R5C2_0357_-2dBmLO_2302B_LSB_9062004_1722.mix
, MeasFile=R6C4_0357_-2dBmLO_2302B_LSB_9062004_1726.mix
, MeasFile=R3C3_0357_+2dBmLO_2302B_LSB_9062004_1608.mix
, MeasFile=R3C6_0357_+2dBmLO_2302B_LSB_9062004_1613.mix
, MeasFile=R4C4_0357_+2dBmLO_2302B_LSB_9062004_1618.mix
, MeasFile=R5C2_0357_+2dBmLO_2302B_LSB_9062004_1623.mix
, MeasFile=R6C4_0357_+2dBmLO_2302B_LSB_9062004_1628.mix
, MeasFile=R3C3_0357_0dBmLO_2302B_LSB_9062004_1639.mix
, MeasFile=R3C6_0357_0dBmLO_2302B_LSB_9062004_1644.mix
, MeasFile=R4C4_0357_0dBmLO_2302B_LSB_9062004_1648.mix
, MeasFile=R5C2_0357_0dBmLO_2302B_LSB_9062004_1653.mix
, MeasFile=R6C4_0357_0dBmLO_2302B_LSB_9062004_1658.mix
, MeasFile=R3C3_0357_-2dBmLO_2302B_LSB_9062004_1708.mix
, MeasFile=R3C6_0357_-2dBmLO_2302B_LSB_9062004_1713.mix
, MeasFile=R4C4_0357_-2dBmLO_2302B_LSB_9062004_1717.mix
, MeasFile=R5C2_0357_-2dBmLO_2302B_LSB_9062004_1722.mix
, MeasFile=R6C4_0357_-2dBmLO_2302B_LSB_9062004_1726.mix
USB, LO=+2dBm,
LSB, LO=+2dBm
USB, LO=+0dBm
LSB, LO=+0dBm
USB, LO=-2dBm
LSB, LO=-2dBm
3
2
1
0
25
26
27
28
29
30
31
RF Freq (GHz)
32
Pr
e-
pr
4
33
34
35
36
37
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099
Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Characteristic Data and Specifications are subject to change without notice.
©2005
Mimix Broadband, Inc.
Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept
their obligation to be compliant with U.S. Export Laws.
n
, MeasFile=R3C3_0357_0dBmLO_2302B_LSB_9062004_1639.mix
USB, LO=+2dBm,
LSB, LO=+2dBm
USB, LO=+0dBm
LSB, LO=+0dBm
USB, LO=-2dBm
LSB, LO=-2dBm
Page 2 of 7
27.0-36.0 GHz GaAs MMIC
Transmitter
May 2005 - Rev 20-May-05
27TRX0357
1.133
(0.045)
2.533
(0.100)
2.933
(0.116)
Mechanical Drawing
1.750
(0.069)
2
3
4
1.231
(0.049)
1
tio
5
0.555
(0.022)
uc
8
7
6
9
0.0
0.733
(0.029)
0.0
2.533
(0.100)
2.933 3.333 3.500
(0.116) (0.131) (0.138)
Units: millimeters (inches) Bond pad dimensions are shown to center of bond pad.
Thickness: 0.110 +/- 0.010 (0.0043 +/- 0.0004), Backside is ground, Bond Pad/Backside Metallization: Gold
All Bond Pads are 0.100 x 0.100 (0.004 x 0.004).
Bond pad centers are approximately 0.109 (0.004) from the edge of the chip.
Dicing tolerance: +/- 0.005 (+/- 0.0002). Approximate weight: 3.798 mg.
Bond Pad #1 (RF Out)
Bond Pad #2 (Vg1)
Bond Pad #3 (IF1)
Bond Pad #4 (Vd2)
e-
pr
Vg1
IF1
3
4
7
8
Bond Pad #5 (LO)
Bond Pad #6 (Vg3)
od
5
(Note: Engineering designator is 27TRX0357)
Bond Pad #7 (Vg2)
Bond Pad #8 (IF2)
Bond Pad #9 (Vd1)
Bias Arrangement
Bypass Capacitors
- See App Note [2]
Vd2
2
RF
1
Pr
LO
6
9
Vg2,3
Vd1
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099
Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Characteristic Data and Specifications are subject to change without notice.
©2005
Mimix Broadband, Inc.
Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept
their obligation to be compliant with U.S. Export Laws.
n
Page 3 of 7
27.0-36.0 GHz GaAs MMIC
Transmitter
May 2005 - Rev 20-May-05
27TRX0357
MTTF Tables (TBD)
Backplate
Temperature
55 deg Celsius
75 deg Celsius
95 deg Celsius
Channel
Temperature
deg Celsius
deg Celsius
deg Celsius
Rth
MTTF Hours
uc
E+
E+
E+
These numbers were calculated based on accelerated life test information and thermal model analysis received from the fabricating foundry.
FITs
C/W
E+
E+
E+
Bias Conditions:
Vd1=Vd2=4.0V, Id1=230 mA, Id2=140 mA
Pr
e-
pr
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099
Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Page 4 of 7
Characteristic Data and Specifications are subject to change without notice.
©2005
Mimix Broadband, Inc.
Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept
their obligation to be compliant with U.S. Export Laws.
od
C/W
C/W
tio
App Note [2] Bias Arrangement
- Each DC pad (Vd1,2 and Vg1,2,3) needs to have DC bypass capacitance (~100-200 pF)
as close to the device as possible. Additional DC bypass capacitance (~0.01 uF) is also recommended.
n
App Note [1] Biasing
- As shown in the bonding diagram, this device is operated by separately biasing Vd1 and Vd2
with Vd(1,2)=4.0V, Id1=230mA and Id2=140mA. It is also recommended to use active biasing to keep the currents
constant as the RF power and temperature vary; this gives the most reproducible results. Depending on the supply
voltage available and the power dissipation constraints, the bias circuit may be a single transistor or a low power
operational amplifier, with a low value resistor in series with the drain supply used to sense the current. The gate of the
pHEMT is controlled to maintain correct drain current and thus drain voltage. The typical gate voltage needed to do this
is -0.3V. Typically the gate is protected with Silicon diodes to limit the applied voltage. Also, make sure to sequence the
applied voltage to ensure negative gate bias is available before applying the positive drain supply.
27.0-36.0 GHz GaAs MMIC
Transmitter
May 2005 - Rev 20-May-05
27TRX0357
App Note [3] USB/LSB Selection
-
LSB
USB
IF2
IF1
An alternate method of Selection of USB or LSB:
od
IF2
USB
LSB
e-
pr
IF1
In Phase Combiner
In Phase Combiner
uc
For Lower Side Band operation (LSB):
With IF1 and IF2 connected to the
direct port (0º) and coupled port (90º)
respectively as shown in the diagram,
the LSB signal will reside on the input
port. The isolated port must be loaded
with 50 ohms.
Pr
-90
o
IF2
IF1
tio
-90
o
For Upper Side Band operation (USB):
With IF1 and IF2 connected to the
direct port (0º) and coupled port (90º)
respectively as shown in the diagram,
the USB signal will reside on the
isolated port. The input port must be
loaded with 50 ohms.
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099
Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Characteristic Data and Specifications are subject to change without notice.
©2005
Mimix Broadband, Inc.
Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept
their obligation to be compliant with U.S. Export Laws.
n
Page 5 of 7
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