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12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
MIXERS - SMT
12
HMC422MS8
GaAs MMIC MIXER w/ INTEGRATED
LO AMPLIFIER, 1.2 - 2.5 GHz
v01.0603
General Description
Features
Functional Diagram
Electrical Specifi cations, TA = +25° C
Typical Applications
The HMC422MS8 is ideal for:
• MMDS & ISM
• Wireless Local Loop
• WirelessLAN
• Cellular Infrastructure
* Unless otherwise noted, all measurements performed as downconverter, IF= 100 MHz.
The HMC422MS8 is a double balanced mixer
IC with an integrated LO amplifi er. This mixer
can operate as an upconverter or downconverter
between 1.2 GHz and 2.5 GHz. With the inte-
grated LO amplifi er, the mixer requires an LO
drive level of only 0 dBm, and requires only 30mA
from a single positive +3V rail. The mixer has 8 dB
of conversion loss, an input P1dB of +8 dBm and
an input third order intercept point of +15 dBm at
2 GHz.
Integrated LO Amplifi er w/ Pdiss <100 mW
Conversion Loss / Noise Figure: 8.0 dB
Low LO Drive: 0 dBm
Input IP3: +15 dBm
Single Positive Supply: 3V, 30 mA
Parameter
IF = 100 MHz
LO = 0 dBm & Vdd = 3V Units
Min. Typ. Max.
Frequency Range, RF & LO 1.2 - 2.5 GHz
Frequency Range, IF DC - 1.0 GHz
Conversion Loss 8 10.5 dB
Noise Figure (SSB) 8 10.5 dB
LO to RF Isolation 23 30 dB
LO to IF Isolation 9 15 - 20 dB
RF to IF Isolation 9 15 - 20 dB
IP3 (Input) 12 15 dBm
1 dB Compression (Input) 5 8 dBm
Supply Current (Idd) 30 mA
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MIXERS - SMT
12
-20
-15
-10
-5
0
1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
+25 C
-40 C
+85 C
CONVERSION GAIN (dB)
FREQUENCY (GHz)
-40
-35
-30
-25
-20
-15
-10
-5
0
1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
RF/IF
LO/RF
LO/IF
ISOLATION (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
LO = -2 dBm
LO = 0 dBm
LO = +2 dBm
LO = +4 dBm
LO = +6 dBm
CONVERSION GAIN (dB)
FREQUENCY (GHz)
-30
-25
-20
-15
-10
-5
0
1 1.5 2 2.5 3 3.5 4
LO
RF
RETURN LOSS (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
+2.7V
+3.0V
+3.3V
+5.0V
CONVERSION GAIN (dB)
FREQUENCY (GHz)
-30
-25
-20
-15
-10
-5
0
0 0.5 1 1.5 2
CONVERSION GAIN
RETURN LOSS
RESPONSE (dB)
FREQUENCY (GHz)
HMC422MS8
Conversion Gain
vs. Temperature @ LO = 0 dBm Isolation @ LO = 0 dBm
IF Bandwidth @ LO = 0 dBm
GaAs MMIC MIXER w/ INTEGRATED
LO AMPLIFIER, 1.2 - 2.5 GHz
v01.0603
Return Loss @ LO = 0 dBmConversion Gain vs. LO Drive
Conversion Gain
vs. Vdd @ LO = 0 dBm
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12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
MIXERS - SMT
12
-20
-15
-10
-5
0
1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
CONVERSION GAIN (dB)
FREQUENCY (GHz)
5
6
7
8
9
10
11
12
13
14
15
1.4 1.6 1.8 2 2.2 2.4 2.6
+25 C
-40 C
+85 C
INPUT P1dB (dBm)
FREQUENCY (GHz)
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
-2 dBm
0 dBm
+3 dBm
INPUT IP3 (dBm)
FREQUENCY (GHz)
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1.4 1.6 1.8 2 2.2 2.4 2.6
+25 C
-40 C
+85 C
INPUT IP3 (dBm)
FREQUENCY (GHz)
HMC422MS8
Upconverter Performance
Conversion Gain @ LO = 0 dBm
GaAs MMIC MIXER w/ INTEGRATED
LO AMPLIFIER, 1.2 - 2.5 GHz
v01.0603
Input IP3 vs. LO Drive*
Input P1dB vs.
Temperature @ LO = 0 dBm
Input IP3 vs.
Temperature @ LO = 0 dBm*
Harmonics of LO
* Two-tone input power= 0 dBm each tone, 1 MHz spacing.
MxN Spurious @ IF Port
nLO
mRF01234
0 XX 2 22 26 41
1 10 0 27 48 57
2 6660645373
3 >85 >85 83 69 80
4 >85 >85 >85 >85 >85
RF = 2.1 GHz @ -10 dBm
LO = 2 GHz @ 0 dBm
All values in dBc relative to the IF power level.
nLO Spur @ RF Port
LO Freq.
(GHz) 1234
1.5 33 14 38 35
1.75 30 16 39 44
2 29174547
2.25 27 20 50 52
2.5 25 26 49 61
3 22376972
LO = 0 dBm
All values in dBc below input LO level @ RF port.
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12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
MIXERS - SMT
12
HMC422MS8
GaAs MMIC MIXER w/ INTEGRATED
LO AMPLIFIER, 1.2 - 2.5 GHz
v01.0603
Outline Drawing
Absolute Maximum Ratings
NOTES:
1. PACKAGE BODY MATERIAL: LOW STRESS INJECTION MOLDED
PLASTIC SILICA AND SILICON IMPREGNATED.
2. LEADFRAME MATERIAL: COPPER ALLOY
3. LEADFRAME PLATING: Sn/Pb SOLDER
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
6. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
7. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND.
RF / IF Input (Vdd = +3V) +13 dBm
LO Drive (Vdd = +3V) +13 dBm
Vdd +7 Vdc
IF DC Current ±10 mA
Channel Temperature (Tc) 150 °C
Continuous Pdiss (T = 85°C)
(Derate 5.8 mW/°C above 85 C) 0.38 W
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
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12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
MIXERS - SMT
12
Pin Number Function Description Interface Schematic
1 LO Port This pin is AC coupled and matched to 50 Ohm from
1.2 - 2.5 GHz.
2, 3, 6, 7 GND Pins must connect to RF ground.
4 Vdd Power supply for the LO Amplifi er. One external RF bypass
capacitor (10,000 pF) is required.
5 IF Port
This pin is DC coupled. For applications not requiring operation
to DC, this port should be DC blocked externally using a series
capacitor whose value has been chosen to pass the neces-
sary IF frequency range. For operation to DC, this pin must not
source/sink more than 10 mA of current or die non-function and
possible die failure will result.
8 RF Port This pin is DC coupled and matched to 50 Ohm from
1.2 - 2.5 GHz.
Pin Descriptions
HMC422MS8
GaAs MMIC MIXER w/ INTEGRATED
LO AMPLIFIER, 1.2 - 2.5 GHz
v01.0603
MICROWAVE CORPORATION
12 - 263
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
MIXERS - SMT
12
HMC422MS8
GaAs MMIC MIXER w/ INTEGRATED
LO AMPLIFIER, 1.2 - 2.5 GHz
v01.0603
Evaluation PCB
The circuit board used in the fi nal application should use
RF circuit design techniques. Signal lines should have
50 ohm impedance while the package ground leads
should be connected directly to the ground plane similar
to that shown. A suffi cient number of VIA holes should be
used to connect the top and bottom ground planes. The
evaluation circuit board shown is available from Hittite
upon request.
List of Material
Item Description
J1 - J3 PC Mount SMA RF Connector
J4 - J5 DC Pin
C1 10k pF Chip Capacitor, 0603 Pkg.
U1 HMC422MS8 Mixer
PCB* 104813 Evaluation PCB, 1.0” x 1.0”
* Circuit Board Material: Rogers 4350
