ML485
1.6–3.2 GHz High IP3 Mixer with Integrated LO Amp
Product Features
Product Description
Functional Diagram
• High dynamic range mixer with
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.
LO
1
2
3
4
RF
8
7
6
integrated LO driver
GND
GND
GND
• +35 dBm Input IP3
• 8 dB Conversion Loss
• RF: 1600 – 3200 MHz
• LO: 1400 – 3500 MHz
• IF: 50 – 300 MHz
GND
IF
Vcc
5
Function
Vcc
RF
IF
LO
GND
Pin No.
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
• 5V Supply @ 40 mA
• 0 dBm Drive Level
4
8
5
1
• RoHS-compliant MSOP8 (14mm2) input power level into the mixer to allow for consistent
performance over a wide range of LO power levels. The
2, 3, 6, 7
converter requires no external baluns and supports a wide
range of IF frequencies.
Applications
• PCS / 3G Base station / Repeaters
Typical applications include frequency up/down
• TD-SCDMA / WCDMA
• WiMAX / WiBro
• ISM / Fixed Wireless
• HPA Feed Back Paths
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.
Specifications
Parameter
Units Min Typ Max Min Typ Max Min Typ Max Min Typ Max
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
MHz
MHz
MHz
dB
dBm
dBm
dBm
dB
1700 – 1800
1800 – 2200
2300 – 2400
2500 – 2700
1400 – 1750
1500 – 2150
2000 - 2350
2200 – 2650
50 – 300
9.4
+34
-5
50 – 300
8.7
+35
-2
50 – 300
8.5
+37
-1
50 – 300
9.0
+36
-1
10
+28
+30
-11
13
-18
16
-25
14
-15
11
Return Loss: RF Port
Return Loss: IF Port
Return Loss: LO Port
Input P1dB
LO Drive Level
Operating Supply Voltage
Operating Current
dB
dB
dB
dBm
dBm
V
13
14
10
20
0
+5
40
13
14
10
20
0
+5
40
15
14
12
19.5
0
16
14
13
19.5
0
-2
+4
-2
+4
-2
+4
-2
+4
+5
40
+5
40
mA
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 RFin = 0 dBm / tone.
Absolute Maximum Rating
Parameter
Storage Temperature
Thermal Resistance, Rth
Rating
-65 to +150 ºC
84 °C / W
Ordering Information
Junction Temperature, Tj
DC Voltage
LO Power
150 °C
+7 V
+10 dBm
+27 dBm
Part No. Description
ML485
1.6–3.2 GHz High IP3 Mixer w/ Integrated LO Amp
Input IF / RF Power
ML485-PCB Full Assembled Evaluation Board
Operation of this device above any of these parameters may cause permanent damage.
Standard T/R size = 1000 pieces on a 7” reel.
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, www.TriQuint.com Page 1 of 4 July 2008