LTC5510 - 1MHz to 6GHz Wideband High Linearity Active Mixer

LTC5510

1MHz to 6GHz Wideband

High Linearity Active Mixer

FEATURES

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DESCRIPTION

Input Frequency Range to 6GHz

50¦¸ Matched Input from 30MHz to >3GHz

Capable of Up- or Down-Conversion

OIP3: 27dBm at fOUT = 1575MHz

1.5dB Conversion Gain

Noise Figure: 11.6dB at fOUT = 1575MHz

High Input P1dB: 11dBm at 5V

5V or 3.3V Supply at 105mA

Shutdown Control

LO Input Impedance Always Matched

0dBm LO Drive Level

0n-Chip Temperature Monitor

¨C40¡ãC to 105¡ãC Operation (TC)

16-Lead (4mm ¡Á 4mm) QFN Package

The LTC?5510 is a high linearity mixer optimized for applications requiring very wide input bandwidth, low distortion,

and low LO leakage. The chip includes a double-balanced

active mixer with an input buffer and a high speed LO amplifier. The input is optimized for use with 1:1 transmissionline baluns, allowing very wideband impedance matching.

The mixer can be used for both up- and down-conversion

and can be used in wideband systems.

The LO can be driven differentially or single-ended and

requires only 0dBm of LO power to achieve excellent distortion and noise performance, while also reducing external

drive circuit requirements. The LTC5510 offers low LO

leakage, greatly reducing the need for output filtering to

meet LO suppression requirements.

APPLICATIONS

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The LTC5510 is optimized for 5V but can also be used

with a 3.3V supply with slightly reduced performance.

The shutdown function allows the part to be disabled for

further power savings.

Wideband Receivers/Transmitters

Cable Downlink Infrastructure

HF/VHF/UHF Mixer

Wireless Infrastructure

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

TYPICAL APPLICATION

Conversion Gain, IIP3 and NF

vs Input Frequency

30MHz to 4GHz Up/Down Mixer for Wideband Receiver

LO

50¦¸

IN

30MHz TO

4GHz

50¦¸

TCM1-43X+

1:1

0.1?F

TEMP

0.1?F

LO+

LTC5510

OUT+

IN+

0.6pF

0.1?F

IN¨C

OUT¨C

BIAS

LGND

EN VCC1

BD1222J50200AHF

4:1

LO¨C

VCC2 IADJ

6.8nH

6.8pF

OUT

1575MHz

50¦¸

6.8nH

4.75k¦¸

EN

25

IIP3

20

HS LO

15

LS LO

NF

10

fOUT = 1575MHz

PIN = ¨C10dBm

PLO = 0dBm

TC = 25¡ãC

5

10nF

GC

0

5V

10nF

GAIN (dB), IIP3 (dBm), NF (dB)

TEMPERATURE

MONITOR

30

0.1?F

1?F

0

1000

2000

3000

INPUT FREQUENCY (MHz)

5510 TA01

4000

5510 TA01a

5510fa

For more information LTC5510

1

LTC5510

ABSOLUTE MAXIMUM RATINGS

PIN CONFIGURATION

(Note 1)

GND

LO¨C

LO+

TP

TOP VIEW

16 15 14 13

12 GND

TEMP 1

IN+ 2

11 OUT+

17

IN¨C 3

10 OUT ¨C

LGND 4

5

6

7

8

EN

VCC2

IADJ

9

VCC1

Supply Voltage (VCC1, VCC2, OUT+, OUT¨C).................6.0V

Enable Voltage (EN)..........................¨C0.3V to VCC + 0.3V

Current Adjust Voltage (IADJ)..................... ¨C0.3V to 2.7V

LO Input Power (1MHz to 6GHz)......................... +10dBm

LO Differential DC Voltage........................................1.5V

LO+, LO ¨C Input DC Voltage............................ ¨C0.3V to 3V

IN+, IN¨C Input Power (1MHz to 6GHz)................. +15dBm

IN+, IN¨C Input DC Voltage .......................... ¨C0.3V to 2.4V

Temp Monitor Input Current (TEMP).......................10mA

Operating Temperature Range (TC)......... ¨C40¡ãC to 105¡ãC

Storage Temperature Range................... ¨C65¡ãC to 150¡ãC

Junction Temperature (TJ)..................................... 150¡ãC

GND

UF PACKAGE

16-LEAD (4mm ¡Á 4mm) PLASTIC QFN

TJMAX = 150¡ãC, ¦ÈJC = 6¡ãC/W

EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC5510IUF#PBF

LTC5510IUF#TRPBF

5510

16-Lead (4mm ¡Á 4mm) Plastic QFN

¨C40¡ãC to 105¡ãC

Consult LTC Marketing for parts specified with wider operating temperature ranges.

For more information on lead free part marking, go to:

For more information on tape and reel specifications, go to:

AC ELECTRICAL CHARACTERISTICS

The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TC = 25¡ãC. EN = High, PLO = 0dBm. Test circuit shown in Figure 1. (Notes 2, 3, 4)

PARAMETER

CONDITIONS

Input Frequency Range

Requires External Matching

LO Input Frequency Range

MIN

TYP

MAX

UNITS

l

1 to 6000

MHz

l

1 to 6500

MHz

l

1 to 6000

MHz

Output Frequency Range

Requires External Matching

Input Return Loss

ZO = 50¦¸, 30MHz to 3GHz

LO Input Return Loss

ZO = 50¦¸, 1MHz to 5GHz

>10

dB

Output Impedance

Differential at 1500MHz

201¦¸||0.6pF

R||C

LO Input Power

fLO = 1MHz to 5GHz

5V Wideband Up/Downmixer Application: fIN = 30MHz to 3000MHz, fOUT = 1575MHz, VCC = 5V, R1 = 4.75k¦¸

Conversion Gain

fIN = 190MHz, fLO = 1765MHz, Upmixer

fIN = 900MHz, fLO = 2475MHz, Upmixer

fIN = 2150MHz, fLO = 575MHz, Downmixer

fIN = 2600MHz, fLO = 1025MHz, Downmixer

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Conversion Gain vs Temperature

TC = ¨C40¡ãC to 105¡ãC, fIN = 900MHz

>11

¨C6

0

0.5

1.5

1.4

1.1

1.2

¨C0.007

dB

6

dBm

dB

dB

dB

dB

dB/¡ãC

5510fa

2

For more information LTC5510

LTC5510

AC ELECTRICAL CHARACTERISTICS

The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TC = 25¡ãC. EN = High, PLO = 0dBm, PIN = ¨C10dBm (¨C10dBm/tone for two-tone tests),

unless otherwise noted. Test circuit shown in Figure 1. (Notes 2, 3, 4)

PARAMETER

CONDITIONS

MIN

TYP

24.0

fIN = 190MHz, fLO = 1765MHz, Upmixer

fIN = 900MHz, fLO = 2475MHz, Upmixer

fIN = 2150MHz, fLO = 575MHz, Downmixer

fIN = 2600MHz, fLO = 1025MHz, Downmixer

SSB Noise Figure

fIN = 190MHz, fLO = 1765MHz, Upmixer

fIN = 900MHz, fLO = 2475MHz, Upmixer

fIN = 2150MHz, fLO = 575MHz, Downmixer

fIN = 2600MHz, fLO = 1025MHz, Downmixer

SSB Noise Figure Under Blocking

fIN =900MHz, fLO = 2475MHz,

fBLOCK = 800MHz, PBLOCK = +5dBm

LO-IN Leakage

fLO = 20MHz to 3300MHz

LO-OUT Leakage

fLO = 20MHz to 1000MHz

fLO = 1000MHz to 3300MHz

IN-OUT Isolation

fIN = 20MHz to 1150MHz

fIN = 1150MHz to 3000MHz

IN-LO Isolation

fIN = 30MHz to 3000MHz

Input 1dB Compression

fIN = 190MHz, fLO = 1765MHz, Upmixer

fIN = 900MHz, fLO = 2475MHz, Upmixer

fIN = 2150MHz, fLO = 575MHz, Downmixer

fIN = 2600MHz, fLO = 1025MHz, Downmixer

3.3V Wideband Up/Downmixer Application: fIN = 30MHz to 3000MHz, fOUT = 1575MHz, VCC = 3.3V, R1 = 1.8k¦¸

Conversion Gain

fIN = 190MHz, fLO = 1765MHz, Upmixer

fIN = 900MHz, fLO = 2475MHz, Upmixer

fIN = 2150MHz, fLO = 575MHz, Downmixer

fIN = 2600MHz, fLO = 1025MHz, Downmixer

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Conversion Gain vs Temperature

TC = ¨C40¡ãC to 105¡ãC, fIN = 900MHz

Two-Tone Output 3rd Order Intercept

fIN = 190MHz, fLO = 1765MHz, Upmixer

fIN = 900MHz, fLO = 2475MHz, Upmixer

(¦¤f = 2MHz)

fIN = 2150MHz, fLO = 575MHz, Downmixer

fIN = 2600MHz, fLO = 1025MHz, Downmixer

SSB Noise Figure

fIN = 190MHz, fLO = 1765MHz, Upmixer

fIN = 900MHz, fLO = 2475MHz, Upmixer

fIN = 2150MHz, fLO = 575MHz, Downmixer

fIN = 2600MHz, fLO = 1025MHz, Downmixer

SSB Noise Figure Under Blocking

fIN = 900MHz, fLO = 2475MHz,

fBLOCK = 800MHz PBLOCK = +5dBm

LO-IN Leakage

fLO = 20MHz to 3300MHz

LO-OUT Leakage

fLO = 20MHz to 1000MHz

fLO = 1000MHz to 3300MHz

IN-OUT Isolation

fIN = 20MHz to 1150MHz

fIN = 1150MHz to 3000MHz

IN-LO Isolation

fIN = 30MHz to 3000MHz

Input 1dB Compression

fIN = 190MHz, fLO = 1765MHz, Upmixer

fIN = 900MHz, fLO = 2475MHz, Upmixer

fIN = 2150MHz, fLO = 575MHz, Downmixer

fIN = 2600MHz, fLO = 1025MHz, Downmixer

27.8

25.0

26.0

24.5

11.6

12.1

11.6

11.8

20.3

Two-Tone Output 3rd Order Intercept

(¦¤f = 2MHz)

MAX

UNITS

14.5

dBm

dBm

dBm

dBm

dB

dB

dB

dB

dB

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11.0

12.2

11.5

11.6

dBm

dBm

dBm

dB

dB

dB

dBm

dBm

dBm

dBm

1.5

1.4

1.1

1.2

¨C0.006

24.2

23.3

23.9

22.3

11.2

12.2

11.4

11.4

20.8

dB

dB

dB

dB

dB/¡ãC

dBm

dBm

dBm

dBm

dB

dB

dB

dB

dB

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8.9

10.7

10.1

9.6

dBm

dBm

dBm

dB

dB

dB

dBm

dBm

dBm

dBm

5510fa

For more information LTC5510

3

LTC5510

AC ELECTRICAL CHARACTERISTICS

The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TC = 25¡ãC. EN = High, PLO = 0dBm, PIN = ¨C10dBm (¨C10dBm/tone for two-tone tests),

unless otherwise noted. Test circuit shown in Figure 1. (Notes 2, 3, 4)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

5V Wideband Upmixer Application: fIN = 30MHz to 1000MHz, fOUT = 2140MHz, fLO = fIN + fOUT, VCC = 5V, R1 = 4.75k¦¸

Conversion Gain

fIN = 190MHz

fIN = 450MHz

fIN = 900MHz

Conversion Gain vs Temperature

TC = ¨C40¡ãC to 105¡ãC, fIN = 190MHz

¨C0.006

dB/¡ãC

Two-Tone Output 3rd Order Intercept

(¦¤f = 2MHz)

fIN = 190MHz

fIN = 450MHz

fIN = 900MHz

25.6

24.6

23.9

dBm

dBm

dBm

SSB Noise Figure

fIN = 190MHz

fIN = 450MHz

fIN = 900MHz

12.0

12.2

12.4

dB

dB

dB

SSB Noise Floor at PIN = +5dBm

fIN = 800MHz, fLO = 3040MHz, fOUT = 2140MHz

LO-IN Leakage

fLO = 2100MHz to 3500MHz

50

dB

Input 1dB Compression

fIN = 190MHz

fIN = 450MHz

fIN = 900MHz

11.5

11.5

11.7

dBm

dBm

dBm

1.1

1.0

1.0

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¨C151.4

dB

dB

dB

dBm/Hz

5V VHF/UHF Wideband Downmixer Application: fIN = 100MHz to 1000MHz, fOUT = 44MHz, fLO = fIN + fOUT, VCC = 5V, R1 = Open

Conversion Gain

fIN = 140MHz

fIN = 456MHz

fIN = 900MHz

Conversion Gain vs Temperature

TC = ¨C40¡ãC to 105¡ãC, fIN = 456MHz

¨C0.006

dB/¡ãC

Two-Tone Input 3rd Order Intercept

(¦¤f = 2MHz)

fIN = 140MHz

fIN = 456MHz

fIN = 900MHz

27.8

28.5

26.8

dBm

dBm

dBm

SSB Noise Figure

fIN = 140MHz

fIN = 456MHz

fIN = 900MHz

10.8

10.9

11.6

dB

dB

dB

SSB Noise Figure Under Blocking

fIN = 900MHz, fLO = 944MHz,

fBLOCK = 800MHz, PBLOCK = +5dBm

20.0

dB

Two-Tone Input 2nd Order Intercept

(¦¤f = fIM2 = 42MHz)

fIN1 = 477MHz, fIN2 = 435MHz, fLO = 500MHz

72

dBm

2LO-2RF Output Spurious Product

(fIN = fLO ¨C fOUT/2)

fIN = 478MHz at ¨C6dBm, fLO = 500MHz, fOUT = 44MHz

¨C84

dBc

3LO-3RF Output Spurious Product

(fIN = fLO ¨C fOUT/3)

fIN = 485.33MHz at ¨C6dBm, fLO = 500MHz,

fOUT = 44.01MHz

¨C82

dBc

LO-IN Leakage

fLO = 50MHz to 1200MHz

62

dB

Input 1dB Compression

fIN = 456MHz

12.1

dBm

1.9

1.9

1.9

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dB

dB

dB

5510fa

4

For more information LTC5510

LTC5510

AC ELECTRICAL CHARACTERISTICS

The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TC = 25¡ãC. EN = High, PLO = 0dBm, PIN = ¨C10dBm (¨C10dBm/tone for two-tone tests),

unless otherwise noted. Test circuit shown in Figure 1. (Notes 2, 3, 4)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

5V VHF/UHF Upmixer Application: fIN = 70MHz, fOUT = 100MHz to 1000MHz, fLO = fIN + fOUT, VCC = 5V, R1 = Open, L3 = 220nH

Conversion Gain

fOUT = 456MHz

Conversion Gain vs Temperature

TC = ¨C40¡ãC to 105¡ãC, fOUT = 456MHz

1.1

Two-Tone Output 3rd Order Intercept

(¦¤f = 2MHz)

fOUT = 456MHz

l

dB

¨C0.007

dB/¡ãC

29.0

dBm

SSB Noise Figure

fOUT = 456MHz

11.3

dB

SSB Noise Floor at PIN = +5dBm

fIN = 44MHz, fLO = 532MHz, fOUT = 462MHz

¨C152

dBm/Hz

LO-IN Leakage

fLO = 100MHz to 1500MHz

70

dB

dB

Input 1dB Compression

fOUT = 456MHz

11.0

dBm

DC ELECTRICAL CHARACTERISTICS

The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TC = 25¡ãC. VCC = 5V, EN = High, unless otherwise noted. Test circuit shown in

Figure 1. (Note 2)

PARAMETER

CONDITIONS

MIN

TYP

MAX

4.5

3.1

5

3.3

5.3

3.5

UNITS

Power Supply

Supply Voltage (Pins 6, 7, 10, 11)

5V Supply

3.3V Supply

Supply Current (Pins 6, 7, 10, 11)

5V, R1 = Open

5V, R1 = 4.75k

3.3V, R1 = Open

3.3V, R1 = 1.8k

105

99.6

105

94

Total Supply Current ¨C Shutdown

EN = Low

1.3

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2.5

V

V

mA

mA

mA

mA

mA

Enable Logic Input (EN)

EN Input High Voltage (On)

l

EN Input Low Voltage (Off)

1.8

V

l

¨C20

0.5

V

200

¦ÌA

EN Input Current

¨C0.3V to VCC + 0.3V

Turn-On Time

EN: Low to High

0.6

¦Ìs

Turn-Off Time

EN: High to Low

0.6

¦Ìs

1.8

V

IADJ Shorted to Ground

1.9

mA

DC Voltage at TJ = 25¡ãC

IIN = 10?A

IIN = 80?A

697

755

mV

mV

Voltage Temperature Coefficient

IIN = 10?A

IIN = 80?A

Current Adjust Pin (IADJ)

Open Circuit DC Voltage

Short Circuit DC Current

Temperature Monitor Pin (TEMP)

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: The LTC5510 is guaranteed functional over the case operating

temperature range of ¨C40¡ãC to 105¡ãC. (¦ÈJC = 6¡ãC/W)

l

l

¨C1.80

¨C1.61

mV/¡ãC

mV/¡ãC

Note 3: SSB Noise Figure measured with a small-signal noise source,

bandpass filter and 3dB matching pad on the signal input, bandpass filter

and 6dB matching pad on the LO input, and no other RF signals applied.

Note 4: Specified performance includes all external component and

evaluation PCB losses.

For more information LTC5510

5510fa

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