參數(shù)資料
型號： MH303-PCB
廠商： Electronic Theatre Controls, Inc.
英文描述： Cellular-band Quad-FET Mixer
中文描述： 蜂窩帶四FET混頻器
文件頁數(shù)： 1/4頁
文件大?。?/td> 144K
代理商： MH303-PCB
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
The Communications Edge
TM
MH303
Cellular-band Quad-FET Mixer
Product Information
Product Features
+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
Product Description
The MH303 is a passive Quad-MOSFET mixer that
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
MH303
IF1
GND
LO
IF2
GND
RF
4
5
6
3
2
1
Function
Pin No.
1
3
4
6
2, 5
IF Differential Input
LO port
RF port
IF differential Input
Ground
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
Units
MHz
MHz
MHz
dB
dBm
dBm
dBm
dBm
dB
dBm
dB
dB
dB
dB
dB
Minimum
820
720
20
+26
+27
+26
35
40
Typical
70
7.5
+27
+28
+27
+17.5
8
+13
38
44
18
12
10
Maximum
920
900
100
8.0
Comments
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
1. Data was taken using an application board in a 50
system, with a low side LO at +13 dBm in a downconverting application at 25°C with an IF frequency = 70 MHz.
2. 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.
3. The conversion loss includes the loss of an IF transformer (M/A COM ETC1-1-13, nominal loss 0.7 dB at 70 MHz).
4. Input IP3 is measured with two tones with an input power of +3 dBm / tone separated by 1 MHz.
5. 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
Rating
-40° to +85
°
C
-40° to +125° C
+20 dBm
+12 dBm
Operation of this device above any of these parameters may cause permanent damage.
Ordering Information
Part No.
MH303
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
MH303-G
MH303-PCB
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