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HMC285 / 285E
v02.0907
GaAs MMIC SMT SINGLE BALANCED MIXER, 1.7 - 3.5 GHz
Typical Applications
The HMC285 / HMC285E is ideal for: * PCS * W-CDMA * 2.4 GHz ISM
Features
No External Components Required LO / RF Isolation: 30 dB Input IP3: +21 dBm Ultra Small SOT26 Package
8
MIXERS - SMT
* MMDS
Functional Diagram
General Description
The HMC285 & HMC285E are ultra miniature single balanced mixers in 6 lead plastic surface mount SOT26 packages. This passive MMIC mixer is constructed of GaAs Schottky diodes and a novel planar transformer balun on the chip. The RF port is balanced via the MMIC balun while the LO port is connected directly to the diodes. The consistent MMIC performance will improve system operation without the need for external components. The SOT26 package is the smallest footprint available for a complete single-balanced mixer, 0.118" x 0.118" (3.0mm x 3.0mm).
Electrical Specifi cations, TA = +25 C, As a Function of IF Frequency
Parameter Min. Frequency Range, RF & LO Frequency Range, IF Conversion Loss Noise Figure (SSB) LO to RF Isolation LO to IF Isolation IP3 (Input) 1 dB Compression (Input) 20 11 17 7 LO = +10 dBm IF = 100 MHz Typ. 2 - 3.5 DC - 0.9 9 9 30 20 21 11 11 11 25 14 16 6 Max. Min. LO = +10 dBm IF = 400 MHz Typ. 1.7 - 2.8 DC - 0.9 9.5 9.5 35 20 20 10 11.5 11.5 Max. GHz GHz dB dB dB dB dBm dBm Units
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For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
HMC285 / 285E
v02.0907
GaAs MMIC SMT SINGLE BALANCED MIXER, 1.7 - 3.5 GHz
Conversion Gain vs. Temperature @ LO = +10 dBm
0 -5 -10 -15 -20 -25 -30 1 1.5 2 2.5 3 3.5 4 FREQUENCY (GHz) ISOLATION (dB)
Isolation @ LO = +10 dBm
0 -10 -20 -30 IF = 400 MHz -40 -50 -60 1 1.5 2 2.5 3 3.5 4 FREQUENCY (GHz)
RF/IF LO/RF LO/RF
CONVERSION GAIN (dB)
IF = 400 MHz
-40 C +25 C +85 C
8
MIXERS - SMT
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Conversion Gain vs. LO Drive
0 -5 -10 -15 IF = 400 MHz -20 -25 -30 1 1.5 2 2.5 3 3.5 4 FREQUENCY (GHz)
+5 dBm +7 dBm +10 dBm +13 dBm
Return Loss @ LO = +10 dBm
0
CONVERSION GAIN (dB)
-5 RETURN LOSS (dB)
-10
-15 IF = 400 MHz -20
LO RF
-25 1 1.5 2 2.5 3 3.5 4 FREQUENCY (GHz)
Conversion Gain vs. IF Frequency
0 -5 -10 -15 -20 -25 -30 1 1.5 2 2.5 3 3.5 4 FREQUENCY (GHz)
IF Bandwidth @ LO = +10 dBm. Conversion Gain & Return Loss
CONVERSION GAIN & RETURN LOSS (dB) 0
CONVERSION GAIN (dB)
-5
-10
-15
100 MHz 400 MHz 800 MHz
-20
IF Conv. Gain IF Return Loss
-25 0 0.5 1 1.5 FREQUENCY (GHz)
For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
HMC285 / 285E
v02.0907
GaAs MMIC SMT SINGLE BALANCED MIXER, 1.7 - 3.5 GHz
Input IP3 vs. Temperature @ LO = +10 dBm
25 24 23 INPUT IP3 (dBm) 22 21 20 19 18 17 16 15 1 1.25 1.5 1.75 2 2.25 2.5 2.75 3 1 1.25 1.5 1.75 2 2.25 2.5 2.75 3 FREQUENCY (GHz) FREQUENCY (GHz)
-40 C +25 C +85 C
Input IP3 vs. LO Drive
25 24 23 INPUT IP3 (dBm) 22 21 20 19 18 17 16
+7 dBm +10 dBm +13 dBm
8
MIXERS - SMT
15
Input IP2 vs. LO Drive
70
P1dB vs. Temperature @ LO = +10 dBm
15 14
60 INPUT P1dB (dBm) INPUT IP2 (dBm)
13 12 11 10 9 8 7 6
-40 C +25 C +85 C
50
40
+7 dBm +10 dBm +13 dBm
30
20 1 1.25 1.5 1.75 2 2.25 2.5 2.75 3 FREQUENCY (GHz)
5 1 1.3 1.5 1.8 2 2.2 2.5 2.7 3 FREQUENCY (GHz)
MxN Spurious Outputs
nLO mRF 0 1 2 3 4 0 xx 10 59 >110 >110 1 -12.4 0 60 87 >110 2 1 38 61 90 >110 3 1 23 43 80 >110 4 33 43 62 88 >110
Harmonics of LO
nLO Spur at RF Port LO Frequency (GHz) 1.5 1.7 1.9 2.1 2.3 2.5 1 42 39 39 47 36 30 2 17 16 15 16 18 21 3 47 41 37 35 32 32 4 47 44 44 45 48 50
RF = 2.6 GHz @ -10 dBm LO = 2.2 GHz @ +10 dBm All values in dBc relative to the IF
LO = +10 dBm Values in dBc below input LO level measured at the RF port
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For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
HMC285 / 285E
v02.0907
GaAs MMIC SMT SINGLE BALANCED MIXER, 1.7 - 3.5 GHz
Absolute Maximum Ratings
RF / IF Input LO Drive Storage Temperature Operating Temperature +13 dBm +27 dBm -65 to +150 C -40 to +85 C
ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS
8
MIXERS - SMT
NOTES: 1. LEADFRAME MATERIAL: COPPER ALLOY 2. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 3. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE. 4. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE. 5. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND.
Outline Drawing
Package Information
Part Number HMC285 HMC285E Package Body Material Low Stress Injection Molded Plastic RoHS-compliant Low Stress Injection Molded Plastic Lead Finish Sn/Pb Solder 100% matte Sn MSL Rating MSL1 MSL1
[1]
Package Marking [3] H285 XXXX 285E XXXX
[2]
[1] Max peak reflow temperature of 235 C [2] Max peak reflow temperature of 260 C [3] 4-Digit lot number XXXX
For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
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HMC285 / 285E
v02.0907
GaAs MMIC SMT SINGLE BALANCED MIXER, 1.7 - 3.5 GHz
Evaluation Board Layout
8
MIXERS - SMT
List of Materials for Evaluation PCB 103240 [1]
Item J1 - J3 U1 PCB [2] Description PC Mount SMA Connector HMC285 / HMC285E Mixer 103065 Eval Board
[1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350
The circuit board used in the final application should be generated with proper RF circuit design techniques. Signal lines should have 50 ohm impedance and the package ground leads should be connected directly to the ground plane similar to that shown above. The evaluation circuit board as shown is available from Hittite upon request.
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For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
HMC285 / 285E
v02.0907
GaAs MMIC SMT SINGLE BALANCED MIXER, 1.7 - 3.5 GHz
Notes:
8
MIXERS - SMT
For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
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