MICROWAVE CORPORATION
v00.0902
HMC448
Features
Output Power: +11 dBm
Wide Input Power Range: -4 to +6 dBm
Fo, 3Fo Isolation: >20 dBc @ Fout= 20 GHz
100 KHz SSB Phase Noise: -135 dBc/Hz
Single Supply: 5V@ 48 mA
Die Size: 1.16 mm x 1.20 mm x 0.1 mm
GaAs MMIC x2 ACTIVE FREQUENCY
MULTIPLIER, 19 - 25 GHz OUTPUT
Typical Applications
The HMC448 is suitable for:
• Clock Generation Applications:
SONET OC-192 & SDH STM-64
• Pt to Pt & VSAT Radios
• Test Instrumentation
• Military & Space
4
FREQ. MULTIPLIERS - CHIP
Functional Diagram
General Description
The HMC448 die is a x2 active broadband frequency
multiplier chip utilizing GaAs PHEMT technology.
When driven by a 0 dBm signal, the multiplier
provides +11 dBm typical output power from 19 to
25 GHz. The Fo and 3Fo isolations are >22 dBc
up to 22 GHz. This multi-rate frequency multiplier
can be used in the generation of a half rate clock
for 40 Gbps systems or as part of a multiplier chain
to generate a full rate 40 Gbps clock. The HMC448
is also ideal for use in LO multiplier chains for Pt
to Pt & VSAT Radios yielding reduced parts count
vs. traditional approaches. The low additive SSB
Phase Noise of -135 dBc/Hz at 100 kHz offset helps
maintain good system noise performance. All data
is with the chip in a 50 ohm test fixture connected
via 0.076mm x 0.0127mm (3mil x 0.5mil) ribbon
bonds of minimal length 0.31mm (<12mils).
Electrical Specifications,
T
A
= +25° C, Vd1 = Vd2 = 5.0V, 0 dBm Drive Level
Parameter
Frequency Range, Input
Frequency Range, Output
Output Power
Fo Isolation (with respect to output level)
3Fo Isolation (with respect to output level)
Input Return Loss
Output Return Loss
SSB Phase Noise (100 kHz Offset)
Supply Current (Idd)
5
Min.
Typ.
9.5 - 11.0
19 - 22
9
25
25
9
5
-135
48
8
Max.
Min.
Typ.
11.0 - 12.5
22 - 25
12
15
22
6
5
-135
48
Max.
Units
GHz
GHz
dBm
dBc
dBc
dB
dB
dBc/Hz
mA
4 - 28
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
MICROWAVE CORPORATION
v00.0902
HMC448
GaAs MMIC x2 ACTIVE FREQUENCY
MULTIPLIER, 19 - 25 GHz OUTPUT
Output Power vs.
GaAs MMIC SUB-HARMONICALLY
Output Power vs. Drive Level
PUMPED MIXER 17 - 25
Temperature @ 0 dBm Drive Level
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
18
19
20
21
22
23
24
OUTPUT FREQUENCY (GHz)
16
14
12
10
8
6
4
2
0
-2
-4
-6
-8
-10
18
19
20
21
22
23
24
OUTPUT FREQUENCY (GHz)
GHz
OUTPUT POWER (dBm)
OUTPUT POWER (dBm)
+25 C
+85 C
-55 C
-6 dBm
-4 dBm
-2 dBm
0 dBm
+2 dBm
+4 dBm
+6 dBm
4
26
25
26
25
Output Power vs.
Supply Voltage @ 0 dBm Drive Level
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
18
19
20
21
22
23
24
OUTPUT FREQUENCY (GHz)
Isolation @ 0 dBm Drive Level
15
10
OUTPUT POWER (dBm)
5
0
-5
-10
-15
-20
-25
Fo
2Fo
3Fo
Vdd=4.5V
Vdd=5.0V
Vdd=5.5V
25
26
18
19
20
21
22
23
24
25
26
OUTPUT FREQUENCY (GHz)
Pin vs. Pout @ 3 Frequencies
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-1
-2
-6
-5
-4
-3
-2
-1
0
1
2
3
4
INPUT POWER (dBm)
OUTPUT POWER (dBm)
Fout=19 GHz
Fout=22 GHz
Fout=25 GHz
5
6
7
8
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
4 - 29
FREQ. MULTIPLIERS - CHIP
OUTPUT POWER (dBm)
MICROWAVE CORPORATION
v00.0902
HMC448
GaAs MMIC x2 ACTIVE FREQUENCY
MULTIPLIER, 19 - 25 GHz OUTPUT
Input Return Loss vs. Temperature
0
OUTPUT RETURN LOSS (dB)
Output Return Loss vs. Temperature
0
-2
INPUT RETURN LOSS (dB)
-3
-4
-6
-8
-10
-12
-14
-16
-18
+25 C
+85 C
-55 C
-6
-9
+25 C
+85 C
-55 C
4
FREQ. MULTIPLIERS - CHIP
-12
-15
9
10
11
FREQUENCY (GHz)
12
13
-20
18
19
20
21
22
23
24
25
26
FREQUENCY (GHz)
SSB Phase Noise Performance,
Fout = 20.4 GHz, Pin = 0 dBm
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
2
10
SSB PHASE NOISE (dBc/Hz)
10
3
10
4
10
5
10
6
10
7
OFFSET FREQUENCY (Hz)
4 - 30
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
MICROWAVE CORPORATION
v00.0902
HMC448
GaAs MMIC x2 ACTIVE FREQUENCY
MULTIPLIER, 19 - 25 GHz OUTPUT
Absolute Maximum Ratings
RF Input (Vcc= +5V)
Supply Voltage (Vd1, Vd2)
Channel Temperature
Continuous Pdiss (T= 85 °C)
(derate 8.3 mW/°C above 85 °C)
Thermal Resistance
(junction to die bottom)
Storage Temperature
Operating Temperature
+20 dBm
+6.0 Vdc
175 °C
744 mW
Typical Supply Current vs. Vdd
Vdd (Vdc)
4.5
5.0
5.5
Idd (mA)
47
48
49
121 °C/W
-65 to +150 °C
-55 to +85 °C
Note: Multiplier will operate over full voltage
range shown above
.
4
FREQ. MULTIPLIERS - CHIP
Outline Drawing
NOTES:
1. ALL DIMENSIONS ARE IN INCHES [MILLIMETERS].
2. DIE THICKNESS IS .004”
3. TYPICAL BOND PAD IS .004” SQUARE.
4. TYPICAL BOND SPACING IS .006” CENTER TO CENTER.
5. BOND PAD METALIZATION: GOLD
6. BACKSIDE METALIZATION: GOLD
7. BACKSIDE METAL IS GROUND.
8. NO CONNECTION REQUIRED FOR UNLABELED BOND PADS.
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
4 - 31
MICROWAVE CORPORATION
v00.0902
HMC448
GaAs MMIC x2 ACTIVE FREQUENCY
MULTIPLIER, 19 - 25 GHz OUTPUT
Pad Description
Pad Number
Function
Description
Pin is AC coupled and matched to 50 Ohm
from 9.5 - 12.5 GHz.
Interface Schematic
1
RF IN
4
FREQ. MULTIPLIERS - CHIP
2, 3
Vd1, Vd2
Supply voltage 5V ± 0.5V.
4
RF OUT
Pin is AC coupled and matched to 50 Ohm
from 19 - 25 GHz.
GND
Die bottom must be connected to RF ground.
Assembly Diagram
4 - 32
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
