For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824

Phone: 978-250-3343

Fax: 978-250-3373

Order On-line at www.hittite.com

Application Support: Phone: 978-250-3343 or apps@hittite.com

5

HMC987LP5E

v03.1112

LOW NOISE 1:9 FANOUT BUFFER

DC - 8 GHz

TYPICAL PERFORMANCE CHARACTERISTICS

unless otherwise speciied: t = 27 °C, regulated VDD = 3.3 V, 2 GHz, 6 dbm in, AC coupled single ended input and output, 120 Ω/leg DC termination,

AC coupled into 50 Ω measuring load.

Figure 3. Current Consumption vs. Num.

Figure 4. Skew of LVPECL Outputs

[1] +2dbm input, uncorrected for board loss. Measurement is band limited by the trace bandwidth of 7 GHz.

[2] buffers 1 through 8 are successively turned on. rF Min - rF buffer turned on with minimum gain, rF Max - rF buffer turned on with maximum gain

[3] 200 Ω termination, Corrected for board loss.

[4] Characterized at 2 GHz, Effects of customer evaluation board skew and loss are embedded.

[5] the graph shows only output trace distortion.

-0.4

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

0.4

-800

-600

-400

-200

0

200

400

600

800

TIME (picoseconds)

4 GHz OUTP

4 GHz OUTN

2 GHz OUTN

1 GHz OUTP

1 GHz OUTN

2 GHz OUTP

-0.8

-0.6

-0.4

-0.2

0

0.2

0.4

0.6

0

20

40

60

80

100

120

4 GHz

2 GHz

1 GHz

TIME (ps)

Figure 5. Fundamental Output Power vs.

-20

-15

-10

-5

0

5

-30

-24

-18

-12

-6

0

6

INPUT POWER (dBm)

400 MHz

2 GHz

3 GHz

4 GHz

5 GHz

6 GHz

Figure 6. Evaluation Board LVPECL Output

-15

-10

-5

0

5

10

15

P1

P2

P3

P4

P5

P6

P7

P8

OUTPUT CHANNEL

0

100

200

300

400

500

1

2

3

4

5

5

6

7

8

RF Min RF Max

NUMBER OF OUTPUTS SUCCESSIVELY TURNED ON

Ground Current (Does not depend on termination)

120 Ohm DC Termination

300 Ohm DC Termination

200 Ohm DC Termination

-7

-6

-5

-4

-3

-2

-1

0

100

1000

10000

OUTPUT FREQUENCY (MHz)

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

For price, delivery, and to place orders: Analog Devices, Inc.,

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106

Phone: 781-329-4700 • Order online at www.analog.com

Application Support: Phone: 1-800-ANALOG-D