LTC6946 datasheet(2/30 Pages) LINER

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LTC6946

6946fa

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

Supply Voltages

V+ (VREF+, VREFO+, VRF+, VD+) to GND..................3.6V

VCP+, VVCO+ to GND .............................................5.5V

Voltage on CP Pin ................. GND – 0.3V to VCP+ + 0.3V

Voltage on All Other Pins ..........GND – 0.3V to V+ + 0.3V

Operating Case Temperature Range (TC)

(Note 2).................................................. –40°C to 105°C

Operating Junction Temperature........................... 125°C

Storage Temperature Range .................. –65°C to 150°C

(Note 1)

TOP VIEW

GND

UFD PACKAGE

28-LEAD (4mm

5mm) PLASTIC QFN

11 12 13

28 27 26 25 24

VREFO+

REFO

STAT

SCLK

SDI

SDO

VVCO

GND

CMA

CMB

CMC

GND

TUNE

TJMAX = 125°C, θJC = 7°C/W,

EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

CASE TEMPERATURE RANGE

LTC6946IUFD-1#PBF

LTC6946IUFD-1#TRPBF

69461

28-Lead (4mm × 5mm) Plastic QFN

–40°C to 105°C

LTC6946IUFD-2#PBF

LTC6946IUFD-2#TRPBF

69462

28-Lead (4mm × 5mm) Plastic QFN

–40°C to 105°C

LTC6946IUFD-3#PBF

LTC6946IUFD-3#TRPBF

69463

28-Lead (4mm × 5mm) Plastic QFN

–40°C to 105°C

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

Consult LTC Marketing for information on non-standard lead based finish parts.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/

AVAILABLE OPTIONS

VCO FREQUENCY

RANGE (GHz)

PACKAGE STYLE

OUTPUT FREQUENCY RANGE vs OUTPUT DIVIDER SETTING (GHz)

QFN-28 (UFD28)

0 DIV = 6

0 DIV = 5

0 DIV = 4

0 DIV = 3

0 DIV = 2

0 DIV = 1

2.240 to 3.740

LTC6946IUFD-1

0.373 to 0.623

0.448 to 0.748

0.560 to 0.935

0.747 to 1.247

1.120 to 1.870

2.240 to 3.740

3.080 to 4.910

LTC6946IUFD-2

0.513 to 0.818

0.616 to 0.982

0.770 to 1.228

1.027 to 1.637

1.540 to 2.455

3.080 to 4.910

3.840 to 5.790

LTC6946IUFD-3

0.640 to 0.965

0.768 to 1.158

0.960 to 1.448

1.280 to 1.930

1.920 to 2.895

3.840 to 5.790

Overlapping Frequency Bands

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