WJ Communications MH102, MH102-PCB Datasheet
WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com
May 1.0 2002
MH102
Product Description
The MH102 is a passive GaAs MESFET mixer
that provides high dynamic range performance
in a low cost SOIC-8 package. WJ’s MH102
uses patented techniques to realize +32 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 or 1930-1990 MHz PCS band mobile
infrastructure.
Product Features
•
+32 dBm Input IP3
• No External Matching Elements
or External Bias Required
• RF 1900-2200 MHz
• IF 150-300 MHz
•
Low Cost SOIC-8 Package
• UMTS Up/Down Converter
• 1930-1990 MHz Up Converter
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
MH102 High Dynamic Range MMIC Mixer
(Available in tape and reel)
MH102-PCB Fully Assembled Application Circuit
High Dynamic Range UMTS MMIC Mixer
Specifications
Parameter Units Minimum Typical Maximum Condition
Frequency Range:
RF MHz 1900 2200
IF MHz 150 300
SSB Conversion Loss dB 9.0 10.5
Noise Figure dB 9.5
Input IP3 dBm +28 +32
Input P1dB dBm +16
Isolation:
L-R dB 27
L-I dB 35
R-I dB 18
Return Loss:
RF Port dB 15
LO Port dB 1 2
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 application at 25°C.
Input IP3 was measured with two tones with an input power of +5 dBm/tone separated by 10 MHz.
Functional Diagram
The Communications Edge
™
Actual Size
1
2LO RF
3
4
Function Pin No.
RF 7
LO 2
IF 5
Ground 1,3,4,6,8
Internal
Diplexer
8
7
6
5
IF
WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com
May 1.0 2002
MH102
Performance Charts
Input IP3 vs RF Frequency
Low-side Downconversion, LO = +17 dBm, 25°C
36
34
32
30
IF = 350 MHz
28
Input Intercept Point (dBm)
26
1800 1900 2000 2100 2200 2300
IF = 250 MHz
IF = 150 MHz
RF Frequency (MHz)
Input IP3 vs RF Frequency
Low-side Downconversion, IF = 250 MHz, 25°C
36
34
32
30
28
Input Intercept Point (dBm)
26
1800 1900 2000 2100 2200 2300
LO = +19 dBm
LO = +17 dBm
LO = +15 dBm
RF Frequency (MHz)
Input IP3 vs RF Frequency
Low-side Downconversion, IF = 250 MHz
36
34
32
30
28
Input Intercept Point (dBm)
26
1800 1900 2000 2100 2200 2300
-40°C
+25°C
+85°C
RF Frequency (MHz)
Conversion Loss vs RF Frequency
Low-side Downconversion, LO = +17 dBm, 25°C
10.0
9.5
IF = 350 MHz
9.0
IF = 150 MHz
8.5
Conversion Loss (dB)
8.0
1800 1900 2000 2100 2200 2300
RF Frequency (MHz)
IF = 250 MHz
L-I Isolation vs LO Frequency
50
45
40
35
30
L-I Isolation (dB)
25
20
Low-side Downconversion, 25°C
LO = +17 dBm
LO = +19 dBm
LO = +15 dBm
1600 1700 1800 1900 2000 2100 2200
LO Frequency (MHz)
Conversion Loss vs RF Frequency
Low-side Downconversion, IF = 250 MHz, 25°C
10.0
9.5
LO = +19 dBm
9.0
8.5
Conversion Loss (dB)
8.0
1800 1900 2000 2100 2200 2300
LO = +15 dBm
RF Frequency (MHz)
LO = +17 dBm
L-I Isolation vs LO Frequency
50
45
40
35
30
L-I Isolation (dB)
25
20
1600 1700 1800 1900 2000 2100 2200
Low-side Downconversion
LO Frequency (MHz)
-40°C
25°C
85°C
Conversion Loss vs RF Frequency
Low-side Downconversion, IF = 250 MHz
10.0
9.5
9.0
8.5
Conversion Loss (dB)
8.0
1800 1900 2000 2100 2200 2300
RF Frequency (MHz)
+85°C
+25°C
-40°C
IF Return Loss vs IF Frequency
RF = 2000 MHz, LO = +17 dBm, 25°C
0
-5
-10
-15
IF Return Loss (dB)
-20
-25
100 150 200 250 300 350
IF Frequency (MHz)
L-R Isolation vs LO Frequency
50
45
40
35
30
L-R Isolation (dB)
25
20
1600 1700 1800 1900 2000 2100 2200
Low-side Downconversion
LO Frequency (MHz)
LO = 15 dB
LO = 17 dB
LO = 19 dB
L-R Isolation vs LO Frequency
50
45
40
35
30
L-R Isolation (dB)
25
20
1600 1700 1800 1900 2000 2100 2200
Low-side Downconversion
LO Frequency (MHz)
-40°C
25°C
85°C
LO/RF Return Loss vs Frequency
0
-5
-10
-15
Return Loss (dB)
-20
-25
1600 1700 1800 1900 2000 2100 2200 2300
LO = +17 dBm, 25°C
LO Return Loss
RF Return Loss
Frequency (MHz)
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