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 MH303 uses patented techniques to realize +28
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 cellular-band 3G mobile
infrastructure.
Functional Diagram
IF1
1
6
IF2
+28 dBm IIP3
RF 820 – 920 MHz
IF 20 – 100 MHz
Low-side LO configuration
+13 dBm LO Drive Level
High L-I & L-R Isolation (>38 dB)
6-pin 3x3 mm DFN
lead-free/
green/RoHS-compliant
Package
•
No External Bias Required
GND
2
5
GND
LO
3
MH303
4
RF
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
820
720
20
+26
+27
+26
Typical
Maximum
920
900
100
8.0
Comments
35
40
70
7.5
+27
+28
+27
+17.5
8
+13
38
44
18
12
10
See note 2
See note 3
RF = 820 MHz, See note 4
RF = 870 MHz, See note 4
RF = 920 MHz, See note 4
See note 5
LO freq = 750 – 850 MHz
LO freq = 750 – 850 MHz
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 = 70 MHz.
An IF frequency of 70 MHz is a nominal frequency. The IF frequency can be specified by the user within the constraints of the specified minimum and maximum RF and LO frequency range.
The conversion loss includes the loss of an IF transformer (M/A COM ETC1-1-13, nominal loss 0.7 dB at 70 MHz).
Input IP3 is measured with 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
Ordering Information
Part No.
MH303
MH303-G
MH303-PCB
Rating
-40° to +85° C
-40° to +125° C
+20 dBm
+12 dBm
Description
Cellular-band Quad-FET Mixer
(lead-tin plated pins)
Cellular-band Quad-FET Mixer
(lead-free/green/RoHS-compliant Package)
Fully-Assembled MH303 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
•
Phone 1-800-WJ1-4401
•
FAX: 408-577-6621
•
e-mail: sales@wj.com
•
Web site: www.wj.com
October 2004
MH303
Input IP3 vs RF Frequency
+25° C, LO = +13 dBm
30
The Communications Edge
TM
Cellular-band Quad-FET Mixer
Product Information
Typical Performance Charts
Input IP3 vs RF Frequency
+25° C, IF = 70 MHz
35
50
L-I
Isolation vs LO Frequency
25° C, LO = +13 dBm
Input IP3 (dBm)
Input IP3 (dBm)
20
IF = 100 MHz
IF = 70 MHz
IF = 50 MHz
IF = 23 MHz
Isolation (dB)
25
30
45
25
40
L-R
15
20
LO = +17 dBm
LO = +15 dBm
LO = +13 dBm
LO = +11 dBm
35
10
770
820
870
920
970
RF Frequency (MHz)
15
770
820
870
920
970
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
770
820
870
920
970
RF Frequency (MHz)
Return Loss vs RF Frequency
+25° C, IF = 70 MHz, LO = +13 dBm
30
700
750
800
LO Frequency (MHz)
850
900
Conversion Loss vs RF Frequency
+25° C, IF = 70 MHz
10
LO = +11 dBm
LO = +13 dBm
LO = +15 dBm
LO = +17 dBm
IF = 23 MHz
IF = 50 MHz
IF = 70 MHz
IF = 100 MHz
9
8
7
6
5
770
820
870
920
970
RF Frequency (MHz)
Return Loss vs LO Frequency
+25° C, LO = +13 dBm
Return Loss vs IF Frequency
+25° C, RF = 870 MHz, LO = +13 dBm
0
IF Return Loss (dB)
0
LO Return Loss (dB)
RF Return Loss (dB)
-5
-10
-15
-20
-25
770
820
870
920
970
RF Frequency (MHz)
0
-5
-10
-15
-20
-25
700
750
800
850
900
LO Frequency (MHz)
-5
-10
-15
-20
-25
20
40
60
IF Frequency (MHz)
80
100
Application Circuit
3
2
6-lead
6-pin
MLPM
DFN
3 x 3 mm
1
LO
RF
T2
IF
6
4
5
M/A-Com E-Series, ETC1-1-13
RF 1:1 Transformer, 4.5 – 3000 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
October 2004
MH303
The Communications Edge
TM
Cellular-band Quad-FET Mixer
Product Information
MH303 Mechanical Information
This package may contain lead-bearing materials. The plating material on the leads is SnPb.
Package Information
Product Marking
The component will be laser marked with a model number
“M303” 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.
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
M303
YYWW
XXX
M303
YYWW
XXX
*
Functional Schematic Diagram
LO
180
o
Two-Way
Power
Divider
IF
RF
180
o
Two-Way
Power
Divider
MH303
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 235° C convection reflow
JEDEC Standard J-STD-020
Specifications and information are subject to change without notice
October 2004
MH303
The Communications Edge
TM
Cellular-band Quad-FET Mixer
Product Information
MH303-G Mechanical Information
This package is lead-free/Green/RoHS-compliant. It is compatible with both lead-free (maximum 260°C reflow temperature) and leaded
(maximum 245°C reflow temperature) soldering processes. The plating material on the leads is annealed matte tin over copper.
Package Information
Product Marking
The component will be laser marked with a model number
“G303” 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.
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
G303
YYWW
XXX
G303
YYWW
XXX
*
Functional Schematic Diagram
LO
180
o
Two-Way
Power
Divider
IF
RF
180
o
Two-Way
Power
Divider
MH303
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
FPGA/CPLD
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