MH302
Product Features
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The Communications Edge
TM
Product Information
PCS/UMTS-band Quad-FET Mixer
Product Description
The MH302 is a passive Quad-MOSFET mixer that
provides high dynamic range performance in a low cost
3x3 mm 6-pin DFN (Dual Flat No-Lead) lead-
free/green/RoHS-compliant package.
WJ’s MH302 uses patented techniques to realize +27
dBm Input IP3 at an LO drive level of +13 dBm when
used in a simple application circuit with a low-side LO
configuration. The LO can also be driven with higher
power levels up +20 dBm to achieve higher IP3
performance. This mixer integrates internal circuitry to
provide single-ended interfaces for the RF & LO ports.
Typical applications include frequency up/down
conversion, modulation and demodulation for receivers
and transmitters used in 3G UMTS, PCS, and
DCS1800 mobile infrastructure.
Functional Diagram
IF1
1
6
IF2
+27 dBm Input IP3
RF 1800 – 2000 MHz
IF 200 – 300 MHz
Low-side LO configuration
+13 dBm LO Drive Level
High L-I & L-R Isolation (>30 dB)
Lead-free/green/RoHS-compliant
GND
2
5
GND
LO
3
MH302
4
RF
6-pin 3x3 mm DFN package
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No External Bias Required
Applications
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2.5G/3G GSM/CDMA/WCDMA
Function
IF Differential Input
LO port
RF port
IF differential Input
Ground
Pin No.
1
3
4
6
2, 5
Specifications
Parameters
RF Frequency Range
LO Frequency Range
IF Frequency Range
SSB Conversion Loss
Input IP3
Input IP3
Input IP3
Input 1 dB Compression Point
Noise Figure
LO Input Drive Level
LO-RF Isolation
LO-IF Isolation
Return Loss: RF Port
Return Loss: LO Port
Return Loss: IF Port
1.
2.
3.
4.
5.
Units
MHz
MHz
MHz
dB
dBm
dBm
dBm
dBm
dB
dBm
dB
dB
dB
dB
dB
Minimum
1800
1540
200
+23
+26
+23
+16
Typical
Maximum
2000
1740
300
8.0
Comments
28
29
260
7.5
+25
+27
+25
+18
8
+13
32
35
15
10
15
See note 2
See note 3
RF = 1.8 GHz, See note 4
RF = 1.9 GHz, See note 4
RF = 2.0 GHz, See note 4
See note 5
Data was taken using an application board in a 50
Ω
system, with a low side LO at +13 dBm in a downconverting application at 25 °C with an IF frequency = 260 MHz.
An IF frequency of 260 MHz is a nominal frequency. The IF frequency can be specified by the user within the constraints of the specified minimum and maximum RF & LO frequency range.
The conversion loss includes the loss of an IF transformer (M/A COM ETK4-2T, nominal loss 0.7 dB at 260 MHz).
Input IP3 is measured using two tones with an input power of +3 dBm / tone separated by 1 MHz.
Although the input P1dB level is much higher, the continuous RF input power should not exceed +12 dBm. Operation above +12 dBm may cause permanent damage.
Absolute Maximum Ratings
Parameters
Operating Case Temperature
Storage Temperature
LO Input Power
RF Input Power
-40 to +85
°C
-40 to +125 °C
+20 dBm
+12 dBm
Rating
Ordering Information
Part No.
MH302-G
MH302-PCB
Description
PCS/UMTS-band Quad-FET Mixer
(lead-free/green/RoHS-compliant Package)
Fully-Assembled MH302 Application Board
Specifications and information are subject to change without notice
Operation of this device above any of these parameters may cause permanent damage.
WJ Communications, Inc
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Phone 1-800-WJ1-4401
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FAX: 408-577-6621
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e-mail: sales@wj.com
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Web site: www.wj.com
Page 1 of 3 April 2006
MH302
Input IP3 vs RF Frequency
+25° C, LO = +13 dBm
30
The Communications Edge
TM
Product Information
PCS/UMTS-band Quad-FET Mixer
Typical Performance Charts
Input IP3 vs RF Frequency
+25° C, IF = 260 MHz
35
45
Isolation vs LO Frequency
25° C, LO = +13 dBm
Input IP3 (dBm)
Input IP3 (dBm)
25
30
Isolation (dB)
40
L-I
L-R
20
IF = 300 MHz
IF = 260 MHz
IF = 200 MHz
25
LO = +17 dBm
LO = +15 dBm
LO = +13 dBm
LO = +11 dBm
1800
1900
2000
2100
35
15
20
30
10
1700
1800
1900
2000
2100
15
1700
25
1440
1540
1640
LO Frequency (MHz)
1740
1840
RF Frequency (MHz)
RF Frequency (MHz)
Conversion Loss vs RF Frequency
+25° C, LO = +13 dBm
10
Conversion Loss (dB)
Conversion Loss (dB)
9
8
7
6
5
1700
IF = 300 MHz
IF = 260 MHz
IF = 200 MHz
10
9
8
7
6
5
1700
Conversion Loss vs RF Frequency
+25° C, IF = 260 MHz
LO =
LO =
LO =
LO =
+11 dBm
+13 dBm
+15 dBm
+17 dBm
1800
1900
2000
2100
1800
1900
2000
2100
RF Frequency (MHz)
RF Frequency (MHz)
Return Loss vs RF Frequency
+25° C, IF = 260 MHz, LO = +13 dBm
0
LO Return Loss (dB)
RF Return Loss (dB)
-5
-10
-15
-20
-25
1750
0
-5
-10
-15
-20
-25
1440
Return Loss vs LO Frequency
+25° C, LO = +13 dBm
0
IF Return Loss (dB)
-5
-10
-15
-20
-25
200
Return Loss vs IF Frequency
+25° C, RF = 1900 MHz, LO = +13 dBm
1800
1850
1900
1950
2000
2050
1540
1640
1740
1840
225
250
IF Frequency (MHz)
275
300
RF Frequency (MHz)
LO Frequency (MHz)
Application Circuit
3
2
6-lead
6-pin
MLPM
DFN
3 x 3 mm
1
T2
LO
RF
IF
4
5
6
M/A-Com E-Series, ETK4-2T
RF 4:1 Transformer, 2.0 – 1000 MHz
Specifications and information are subject to change without notice
WJ Communications, Inc
•
Phone 1-800-WJ1-4401
•
FAX: 408-577-6621
•
e-mail: sales@wj.com
•
Web site: www.wj.com
Page 2 of 3 April 2006
MH302
The Communications Edge
TM
Product Information
PCS/UMTS-band Quad-FET Mixer
MH302-G Mechanical Information
This package is lead-free/Green/RoHS-compliant. The plating material on the leads is annealed matte tin over copper. It is compatible with
both lead-free (maximum 260
°C
reflow temperature) and leaded (maximum 245
°C
reflow temperature) soldering processes.
Package Information
Product Marking
The component will be laser marked with a model number
“G302” designator exactly as shown followed by an
assembly date code in location shown by “YYWW”. A
laser marked lot code will be in the location shown by
“XXX” and is unique for every assembly lot. The obsolete
tin-lead package is marked with an “M302” designator.
Tape and reel specifications for this part are located on the
website in the “Application Notes” section.
WJ Communications, Inc
•
Phone 1-800-WJ1-4401
•
FAX: 408-577-6621
•
e-mail: sales@wj.com
•
Web site: www.wj.com
G302
YYWW
XXX
G302
YYWW
XXX
*
Functional Schematic Diagram
LO
180
o
Two-Way
Power
Divider
IF
RF
180
o
Two-Way
Power
Divider
MH302
ESD / MSL Information
ESD Rating:
Value:
Test:
Standard:
MSL Rating:
Standard:
Class 1B
Passes at 500 V
Human Body Model (HBM)
JEDEC Standard JESD22-A114
Level 1 at 260
°C
convection reflow
JEDEC Standard J-STD-020
Specifications and information are subject to change without notice
Page 3 of 3 April 2006
Real-time operating system RTOS
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