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

Page 1 of 4 June 2006

ML501

1.9–2.7 GHz High IP3 Mixer with Integrated LO Amp

Product Information

The Communications Edge

TM

Product Features

integrated LO driver

Applications

Infrastructure

Product Description

The ML501 high linearity upconverter or downconverter

combines a passive GaAs MESFET mixer with an

integrated HBT LO driver in a low-cost lead-

free/green/RoHS-compliant SOIC-8 package.

WJ’s

ML501 uses patented techniques to realize +30 dBm Input

IP3 with 8 dB conversion loss using an LO drive level of 0

dBm in a downconverting application.

The on-chip

diplexer in the mixers allows for good matching on the RF

and IF ports. 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.

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 PCS, or UMTS frequency bands. They can

also be used for WiBro/WiLAN/WiMAX infrastructure

requiring high linearity frequency conversion.

Functional Diagram

Specifications

(1)

Parameter

Units

Min

Typ

Max

Min

Typ

Max

Min

Typ

Max

RF Frequency Range

MHz

1900 – 2200

2200 – 2400

2400 – 2700

LO Frequency Range

MHz

1600 – 2150

1900 – 2350

1900 – 2500

IF Frequency Range

MHz

50 – 300

50 – 300

200 – 500

SSB Conversion Loss

dB

8

9

8.1

8.4

dBm

+28

+30

+30

+28

Input P1dB

dBm

+21

+20

+20

dB

9

8

7

dB

27

27

25

RF – IF Isolation

dB

20

21

21

Return Loss: RF Port

dB

16

17

17

Return Loss: IF Port

dB

20

20

20

Return Loss: LO Port

dB

15

12

11

LO Drive Level

dBm

-2.5

0

2.5

-2.5

0

2.5

-2.5

0

2.5

Supply Voltage

V

+5

+5

+5

mA

85

110

135

120

130

1. Min / max limits are tested for the mixer in downconverting application with a low-side LO at 0 dBm at 25 °C with RF/IF = 1900/50, 2200/50, and 1900/300 MHz.

2. IIP3 is measured with

Δf = 1 MHz with RFin = 0 dBm / tone.

3. LO is injected with 0 dBm.

4. This refers to the operating current under LO drive. The current can be reduced by increasing the value of the R2 resistor slightly.

Absolute Maximum Rating

Parameter

Rating

Operating Case Temperature

-40 to +85

°C

Storage Temperature

-55 to +150 °C

DC Voltage

+5.5 V

LO Power

+10 dBm

Input IF / RF Power

+20 dBm

Operation of this device above any of these parameters may cause permanent damage.

Ordering Information

Part No.

Description

ML501-G

1.9–2.7 GHz High IP3 Mixer w/ Integrated LO Amp

(lead-free/green/RoHS-compliant SOIC-8 package)

ML501-PCB

Full Assembled Evaluation Board

1

2

3

4

8

7

6

5

RF

IF

GND

LO

GND

Vcc1

Vcc2

GND

The backside paddle is Ground.