LT5560 datasheet(1/28 Pages) LINER

Part #	LT5560

Description	0.01MHz to 4GHz Low Power Active Mixer

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LT5560

1

5560f

0.01MHz to 4GHz

Low Power Active Mixer

The LT®5560 is a low power, high performance broad-

band active mixer. This double-balanced mixer can be

driven by a single-ended LO source and requires only

–2dBm of LO power. The balanced design results in

low LO leakage to the output, while the integrated input

ampliﬁer provides excellent LO to IN isolation. The sig-

nal ports can be impedance matched to a broad range

of frequencies, which allows the LT5560 to be used as

an up- or down-conversion mixer in a wide variety of

applications.

The LT5560 is characterized with a supply current of 10mA;

however, the DC current is adjustable, which allows the

performance to be optimized for each application with a

single resistor. For example, when biased at its maximum

supply current (13.4mA), the typical upconverting mixer

IIP3 is +10.8dBm for a 900MHz output.

■

Portable Wireless

■

CATV/DBS Receivers

■

WiMAX Radios

■

PHS Basestations

■

RF Instrumentation

■

Microwave Data Links

■

VHF/UHF 2-Way Radios

■

Up or Downconverting Applications

■

Noise Figure: 9.3dB Typical at 900MHz Output

■

Conversion Gain: 2.4dB Typical

■

IIP3: 9dBm Typical at ICC = 10mA

■

Adjustable Supply Current: 4mA to 13.4mA

■

Low LO Drive Level: –2dBm

■

Single-Ended or Differential LO

■

High Port-to-Port Isolation

■

Enable Control with Low Off-State Leakage Current

■

Single 2.7V to 5V Supply

■

Small 3mm × 3mm DFN Package

Low Cost 900MHz Downconverting Mixer

APPLICATIO S

FEATURES

DESCRIPTIO

TYPICAL APPLICATIO

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

IFOUT and IM3 Levels

vs RF Input Power

1

2

3

4

8

9

7

6

5

IN+

IN–

LO–

EN

OUT+

OUT–

LO+

U1

LT5560

PGND

RFIN

900MHz

LOIN

760MHz

IFOUT

140MHz

VCC

15nH

100pF

4.7pF

6.8nH

270nH

5560 TA01

270nH

15nH

6.8nH

270nH

1nF

1

µF

2.7V TO 5.3V

33pF

4.7pF

100pF

4.7pF

RF INPUT POWER (dBm)

–80

–60

–20

10

–70

–40

0

–30

–50

–10

–16

–12

–8

–4

5560 TA02

0

–18

–20

–14

–10

–6

–2

IM3

IFOUT

TA = 25°C

VCC = 3V

ICC = 13.3mA

fLO = 760MHz

fIF = 140MHz

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