ML485
Product Features
1.6–3.2 GHz High IP3 Mixer with Integrated LO Amp
Product Description
The ML485 high linearity converter combines a passive
GaAsFET mixer with an integrated LO driver in an ultra-
small lead-free/green/RoHS-compliant MSOP-8 package.
The double-balanced integrated IC is able to operate across
a wide 1.6-3.2 GHz frequency range to achieve +35 dBm
Input IP3 while drawing a very low 40mA current. The
ML485 can be used as an upconverter or downconverter in
a low-side or high-side LO configuration.
A LO buffer amplifier is integrated on the chip to allow for
operation directly from a synthesize requiring only 0 dBm
of drive level. The dual-stage LO driver provides a stable
input power level into the mixer to allow for consistent
performance over a wide range of LO power levels. The
converter requires no external baluns and supports a wide
range of IF frequencies.
Typical applications include frequency up/down
conversion, modulation and demodulation for receivers and
transmitters used in 2.5G and 3G mobile infrastructure.
Due to the wide frequency range of operation, the converter
can also be used for WiMAX, WiBro, ISM, and fixed
wireless applications.
Functional Diagram
LO
•
High dynamic range mixer with
integrated LO driver
•
+35 dBm Input IP3
•
8 dB Conversion Loss
•
RF: 1600 – 3200 MHz
•
LO: 1400 – 3500 MHz
•
IF: 50 – 300 MHz
•
5V Supply @ 40 mA
•
0 dBm Drive Level
•
RoHS-compliant MSOP8 (14mm
2
)
1
2
3
4
8
RF
7
GND
6
GND
5
IF
GND
GND
Vcc
Function
Vcc
RF
IF
LO
GND
Pin No.
4
8
5
1
2, 3, 6, 7
Applications
•
•
•
•
•
PCS / 3G Base station / Repeaters
TD-SCDMA / WCDMA
WiMAX / WiBro
ISM / Fixed Wireless
HPA Feed Back Paths
Specifications
Parameter
RF Frequency Range
LO Frequency Range
IF Frequency Range
SSB Conversion Loss
Input IP3
LO leakage at RF port
LO leakage at IF port
RF – IF Isolation
Return Loss: RF Port
Return Loss: IF Port
Return Loss: LO Port
Input P1dB
LO Drive Level
Operating Supply Voltage
Operating Current
Units
MHz
MHz
MHz
dB
dBm
dBm
dBm
dB
dB
dB
dB
dBm
dBm
V
mA
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
1700 – 1800
1400 – 1750
50 – 300
9.4
+28
+34
-5
-11
13
13
14
10
20
-2
0
+4
+5
40
1800 – 2200
1500 – 2150
50 – 300
8.7
10
+30
+35
-2
-18
16
13
14
10
20
-2
0
+4
+5
40
2300 – 2400
2000 - 2350
50 – 300
8.5
+37
-1
-25
14
15
14
12
19.5
-2
0
+4
+5
40
2500 – 2700
2200 – 2650
50 – 300
9.0
+36
-1
-15
11
16
14
13
19.5
-2
0
+4
+5
40
1. Specifications are shown at 25 °C, 0 dBm LO drive, IF = 200 MHz, Vdd=5V in a downconverting configuration with a low-side LO.
2. IIP3 is measured with
Δf
= 1 MHz with RF
in
= 0 dBm / tone.
Absolute Maximum Rating
Parameter
Storage Temperature
Thermal Resistance, Rth
Junction Temperature, Tj
DC Voltage
LO Power
Input IF / RF Power
Rating
-65 to +150 ºC
84
°C
/ W
150
°C
+7 V
+10 dBm
+27 dBm
Ordering Information
Part No.
ML485
ML485-PCB
Description
1.6–3.2 GHz High IP3 Mixer w/ Integrated LO Amp
Full Assembled Evaluation Board
Specifications and information are subject to change without notice
Operation of this device above any of these parameters may cause permanent damage.
Standard T/R size = 1000 pieces on a 7” reel.
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 July 2008
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