MH205A
Product Features
•
•
•
•
•
•
•
+35 dBm Input IP3
7 dB Conversion Loss
RF: 800 – 960 MHz
LO: 700 – 890 MHz
IF:
70 – 120 MHz
+17 dBm Drive Level
Lead-free / RoHS-compliant /
Green SOIC-8 package
•
No External Bias Required
High Linearity Cellular-Band MMIC Mixer
Product Description
The MH205A is a passive GaAs MESFET mixer that
provides high dynamic range performance in a low-cost
lead-free/green/RoHS-compliant SOIC-8 package.
WJ’s
MH205A uses patented techniques to realize +35 dBm
Input IP3 at an LO drive level of +17 dBm and can be used
for upconverting or downconverting low-side LO
applications. This single monolithic integrated circuit does
not require any external baluns or bias elements.
Typical applications include frequency up/down
conversion, modulation and demodulation for receivers and
transmitters used in 2.5G and 3G GSM/CDMA/wCDMA
mobile infrastructure in the cellular frequency band.
Functional Diagram
MH205A
1
2
3
4
8
7
6
5
Applications
•
2.5G and 3G GSM/CDMA/
wCDMA Mobile Infrastructure
Function
LO
IF & RF
*
GND
N/C or GND
Pin No.
2
7
1, 3, 4, 6, 8
5
* External components (inductors & capacitors)
are required to diplex the signal
Specifications
Parameters
RF Frequency Range
LO Frequency Range
IF Frequency Range
SSB Conversion Loss
Noise Figure
Input IP3
Input P1dB
LO – RF Isolation
LO – IF Isolation
RF – IF Isolation
Return Loss: RF Port
Return Loss: IF Port
Return Loss: LO Port
LO Drive Level
Units
MHz
MHz
MHz
dB
dB
dBm
dBm
dB
dB
dB
dB
dB
dB
dBm
Min
Typ
800 – 960
700 – 890
70 – 120
7
7.5
+35
+18
37
55
15
15
16
11
+17
Max
Comments
9.5
+28
30
47
See note 1
See note 2
See notes 1 and 3
See note 4
See note 4
1. Test conditions unless otherwise noted: RF / IF = 803 / 70 and 963 / 70 with a low-side LO at +17 dBm in a downconverting application at 25 °C.
The diplexer shown on the application circuit is used in the test fixture.
2. Assumes LO injection noise is filtered at the thermal noise floor, -174 dBm/Hz, at the RF, IF, and Image frequencies.
3. IIP3 is measured with
Δf
= 1 MHz with RFin = 0 dBm / tone.
4. The return loss is measured after the diplexer which splits the RF and IF signals from the mixer.
Absolute Maximum Rating
Parameter
Operating Case Temperature
Storage Temperature
LO Power
Input IF / RF Power
-40 to +85
°C
-65 to +100 °C
+21 dBm
+20 dBm
Rating
Ordering Information
Part No.
MH205A-G
MH205A-PCB
Description
High Dynamic Range Cellular-band MMIC Mixer
(lead-free/green/RoHS-compliant SOIC-8 package)
Fully-Assembled Mixer 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, www.TriQuint.com
Page 1 of 4 May 2007
MH205A
MH205A
LO
High Linearity Cellular-Band MMIC Mixer
Typical Downconversion Performance Plots
Performance using the circuitry on the MH205A-PCB Evaluation Board
L1
27 nH
PIN 2
PIN 7
IF
C2
5.6 pF
RF
L2
15 nH
C1
12 pF
Circuit Board Material: .014” FR-4, 4 layers, .062” total thickness
All passive components are 0402 size.
All other pins on mixer are grounded.
Input IP3 vs RF Frequency vs Temperature
Low-side Downconversion, LO = +17 dBm, IF = 70 MHz
Input IP3 vs RF Frequency vs IF Frequency
Low-side Downconversion, LO = +17 dBm, 25 °C
Input IP3 vs RF Frequency vs LO Power
Low-side Downconversion, IF = 70 MHz, 25 °C
38
Input IP3 (dBm)
Input IP3 (dBm)
38
Input IP3 (dBm)
38
36
34
32
30
28
750
800
850
900
950
1000
750
800
850
900
36
34
32
30
28
750
800
850
900
950
1000
36
34
32
30
28
-40 °C
+25 °C
+85 °C
LO = 15 dBm
LO = 17 dBm
LO = 19 dBm
IF = 70 MHz
IF = 120 MHz
950
1000
RF Frequency (MHz)
Conv. Loss vs RF Frequency vs IF Frequency
Low-side Downconversion, LO = +17 dBm, 25 °C
RF Frequency (MHz)
Conv. Loss vs RF Frequency vs Temperature
Low-side Downconversion, LO = +17 dBm, IF = 70 MHz
RF Frequency (MHz)
Conv. Loss vs RF Frequency vs LO Power
Low-side Downconversion, IF = 70 MHz, 25 °C
9
Conversion Loss (dB)
Conversion Loss (dB)
9
8
7
6
5
4
750
800
850
900
950
1000
750
800
850
900
950
1000
Conversion Loss (dB)
9
8
7
6
5
4
750
800
850
900
950
1000
8
7
6
5
4
RF Frequency (MHz)
IF = 70 MHz
IF = 120 MHz
-40 °C
+25 °C
+85 °C
LO = 15 dBm
LO = 17 dBm
LO = 19 dBm
RF Frequency (MHz)
RF Frequency (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, www.TriQuint.com
Page 2 of 4 May 2007
MH205A
LO Return Loss
LO = +17 dBm, 25 °C
High Linearity Cellular-Band MMIC Mixer
Typical Downconversion Performance Plots (cont’d)
Performance using the circuitry on the MH205A-PCB Evaluation Board
RF Return Loss
LO = +17 dBm, 25 °C
IF Return Loss
LO = +17 dBm, 25 °C
0
LO Return Loss (dB)
RF Return Loss (dB)
0
-5
-10
-15
-20
-25
750
IF Return Loss (dB)
0
-5
-10
-15
-20
-25
800
850
900
950
RF Frequency (MHz)
1000
70
80
90
100
110
IF Frequency (MHz)
120
RF = 800 MHz
RF = 900 MHz
-5
-10
-15
-20
-25
700
750
800
LO Frequency (MHz)
850
L-R Isolation vs Temperature
50
L-R Isolation (dB)
L-I Isolation (dB)
L-I Isolation vs Temperature
70
60
50
40
30
650
-40 °C
+25 °C
+85 °C
700
750
800
850
LO Frequency (MHz)
900
40
30
-40 °C
20
10
650
+25 °C
+85 °C
700
750
800
850
LO Frequency (MHz)
900
Intermodulation (IMD) Product Table
Performance using the circuitry on the MH205A-PCB Evaluation Board
Harmonics of f
LO
2
3
76
89
42
63
43
63
89
64
>93
>93
>93
>93
0
1
2
3
4
5
0
--
18
90
>93
>93
>93
1
57
0
75
>93
>93
>93
4
79
59
84
77
80
>93
5
85
64
83
>93
85
88
RF frequency = 940 MHz @ 0 dBm
LO Frequency = 870 MHz @ +17 dBm
IM product amplitude is in dBc relative to IF output amplitude.
The harmonics of f
LO
with 0*f
RF
are relative to the LO input signal (17 dBm).
Harmonics of f
RF
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, www.TriQuint.com
Page 3 of 4 May 2007
MH205A
High Linearity Cellular-Band MMIC Mixer
This package is lead-free/green/RoHS-compliant. The plating material on the leads is NiPdAu. It is compatible with both lead-free (maximum 260
°C
reflow
temperature) and lead (maximum 245
°C
reflow temperature) soldering processes.
MH205A-G Mechanical Information
Outline Drawing
Product Marking
The component will be marked with an
“MH205A-G” designator with an alphanumeric
lot code on the top surface of the package. The
obsolete tin-lead package is marked with an
“M205A” designator with an alpha numeric lot
code.
Tape and reel specifications for this part are
located on the website in the “Application
Notes” section.
ESD / MSL Information
ESD Rating:
Value:
Test:
Standard:
ESD Rating:
Value:
Test:
Standard:
Class 1B
Passes
/500V
to <1000 V
Human Body Model (HBM)
JEDEC Standard JESD22-A114
Class III
Passes
/500
V to <1000 V
Charged Device Model (CDM)
JEDEC Standard JESD22-C101
Land Pattern / Mounting Configuration
MSL Rating: Level 2 at +260
°C
convection reflow
Standard:
JEDEC Standard J-STD-020
Functional Pin Layout
MH205A
1
2
3
4
8
7
6
5
Pin
1
2
3
4
5
6
7
8
Function
Ground
LO Port
Ground
Ground
No Connect / Ground
Ground
RF / IF Port*
Ground
* External components (inductors & capacitors) are
required to diplex the signal
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, www.TriQuint.com
Page 4 of 4 May 2007
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