WJ Communications MH101, MH101-PCB Datasheet
WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX:408-577-6620 • e-mail:sales@wj.com • Web site: www.wj.com
December 2001
MH101
Product Description
The MH101 is a passive GaAs MESFET mixer
that provides high dynamic range performance
in a low cost SOIC-8 package. WJ’s MH101
uses patented techniques to realize greater than
+30 dBm Input IP3 at an LO drive level of
+17 dBm.
This single monolithic integrated circuit does
not require any external baluns, bias, matching,
or decoupling elements. The on-chip diplexer
affords good matching on the RF and IF ports.
Typical applications include frequency up/down
conversion, modulation and demodulation for
receivers and transmitters used in 3G UMTS
systems.
Product Features
•
+30 dBm Input IP3
• No External Matching Elements
Required
• RF 1900-2200 MHz
• LO 1700-2150 MHz
•
IF 50-200 MHz
• +17 dBm Drive Level
• Low Cost SOIC-8 Package
•
No External Bias Required
Absolute Maximum Ratings
1
Parameter Rating
Operating Case Temperature -40 to +85°C
Storage Temperature -65 to +100°C
Maximum Input LO Power
2
+21 dBm
1. Operation of this device above any of these parameters may cause permanent damage.
2.Total sum of LO port and RF port power should not to exceed +23 dBm.
Ordering Information
Part No. Description
MH101 High Dynamic Range MMIC Mixer
(Available in tape and reel)
MH101-PCB Fully Assembled Application Circuit
High Dynamic Range MMIC Mixer
Specifications
Parameter Units Minimum Typical Maximum Condition
Frequency Range:
RF MHz 1900 2200
LO MHz 1700 2150
IF MHz 50 200
SSB Conversion Loss dB 9.0 10.5
Noise Figure dB 9.5
Input IP3 dBm +30
Input P1dB dBm +16
Isolation:
L-R dB 28
L-I dB 37
R-I dB 18
Return Loss:
RF Port dB 15
LO Port dB 12
IF Port dB 20
LO Drive Level dBm +17
Data was taken using the application board in a 50 Ω system, with a low side LO at +17 dBm in a downconvertering applicaion at 25°C.
Input IP3 was measured with two tones with an input power of +5 dBm/tone separated by 1 MHz.
Functional Diagram
The Communications Edge
™
Advanced Product Information
Actual Size
4321
5678
Function Pin No.
RF 7
LO 2
IF 5
Ground 1,3,4,6,8
WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX:408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com
December 2001
MH101
Performance Charts
Application Circuit
Advanced Product Information
Data was taken using the application board in a 50 Ω system, with a low side LO at +17 dBm in a downconvertering applicaion at 25°C.
Input IP3 was measured with two tones with an input power of +5 dBm/tone separated by 1 MHz.
Input IP3 vs RF Frequency
35
34
33
32
31
30
29
28
27
Input Intercept Point (dBm)
26
25
1900 1950 2000 2050 2100 2150 2200
IF = 200 MHz
IF = 150 MHz
IF = 100 MHz
IF = 50 MHz
RF Frequency (MHz)
IF Return Loss vs IF Frequency
0
RF = 2000 MHz
5
10
15
IF Return Loss (dB)
20
25
150 200175 225 250 275 300
IF Frequency (MHz)
Conversion Loss vs RF Frequency
9.2
IF = 200 MHz
9.0
8.8
8.6
Conversion Loss (dB)
8.4
8.2
1900 1950 2000 2050 2100 2150 2200
RF Frequency (MHz)
IF = 150 MHz
IF = 100 MHz
IF = 50 MHz
RF Return Loss vs RF Frequency
0
IF = 100 MHz
5
10
15
RF Return Loss (dB)
20
25
1900 1950 2000 2050 2100 2150 2200
RF Frequency (MHz)
Isolation vs LO Frequency
50
45
40
35
Isolation (dB)
30
25
20
1700 18001750 1850 1900 1950 2000 2050 2100 2150
LO Frequency (MHz)
L-I
L-R
LO Return Loss vs LO Frequency
0
5
10
15
20
LO Return Loss (dB)
25
30
1700 18001750 19001850 1950 2050 2100 2150 2200
LO Frequency (MHz)
IF
RF LO
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