provides high dynamic range performance in a low-cost
lead-free/green/RoHS-compliant SOIC-8 package.
WJ’s
MH1A 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, 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 2.5G and 3G GSM/CDMA /wCDMA
systems in the DCS, PCS, or UMTS frequency bands.
Functional Diagram
4
3
2
1
+35 dBm IIP3
RF: 1700 – 2000 MHz
LO: 1450 – 1950 MHz
IF:
50 – 250 MHz
+17 dBm Drive Level
Lead-free/green/RoHS-compliant
SOIC-8 SMT package
•
No External Bias Required
5
6
7
8
Applications
•
2.5G and 3G
GSM/CDMA/wCDMA
•
Optimized for DCS/PCS-band
Mobile Infrastructure
Function
LO
IF
RF
GND
Pin No.
2
5
7
1, 3, 4, 6, 8
Specifications
(1)
Parameters
RF Frequency Range
LO Frequency Range
IF Frequency Range
SSB Conversion Loss
Noise Figure
Input IP3
Input IP3
Input P1dB
LO – RF Isolation
LO – RF Isolation
LO – IF Isolation
RF – IF Isolation
2LO – RF Isolation
Return Loss: RF Port
Return Loss: IF Port
Return Loss: LO Port
LO Drive Level
Units
MHz
MHz
MHz
dB
dB
dBm
dBm
dBm
dB
dB
dB
dB
dB
dB
dB
dB
dBm
Min
Typ
1700 – 2000
1450 – 1950
50 – 250
8.3
8.5
+35
+35
+20
30
23
38
20
33
14
20
13
+17
Max
Comments
8.7
9.2
+30
+28
25
27
12
10
10
8
See note 2
RF=1850-1910MHz, IF=235-245MHz, See note 3
All other RF/IF combinations, See note 3
LO = 1450 – 1950 MHz
LO = 2256 – 2321 MHz
Referenced to the nominal LO drive level of 17 dBm
Return loss phase is nominally at -90˚ at 1.9 GHz.
1. Test conditions unless otherwise noted: RF / IF = 1700 / 250, 2000 / 50, and 2000 / 250 MHz with a low-side LO at +17 dBm in a downconverting application at 25 °C.
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 RF
in
= 5 dBm / tone.
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.
MH1A-G
MH1A-PCB
Description
High Dynamic Range PCS-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.
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