For price, delivery, and to place orders, please contact Hittite Microwave Corporation:

20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373

Order On-line at www.hittite.com

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12 - 19

HMC765LP6CE

v00.0609

FRACTIONAL-N SYNTHESIZER WITH

INTEGRATED VCO, 7.8 - 8.8 GHz

SSB Phase Noise vs. Frequency,

Integer Mode

SSB Phase Noise vs. Temperature

@ 8.3 GHz, Integer Mode

SSB Phase noise vs. Reference Freq. &

Loop BW @ 8.3 GHz, Integer Mode

SSB Phase Noise Fractional

Spurs @ 8.302 GHz

Example of Cycle Slip Prevention Hop

from 8.6 to 8.1 GHz

-150

-140

-130

-120

-110

-100

-90

-80

-70

-60

10

2

10

3

10

4

10

5

10

6

10

7

7800 MHz

8300 MHz

8800 MHz

OFFSET FREQUENCY (Hz)

Temp = 25C

Fref = 50 MHz

Loop BW = 100 kHz

-150

-140

-130

-120

-110

-100

-90

-80

-70

-60

10

2

10

3

10

4

10

5

10

6

10

7

Fref = 10MHz

Loop BW= 10kHz

Fref = 50MHz

Loop BW=100kHz

OFFSET FREQUENCY (Hz)

10

2

10

3

10

4

10

5

10

6

10

7

-150

-140

-130

-120

-110

-100

-90

-80

-70

-60

OFFSET FREQUENCY (Hz)

Temp = 25C

Fref = 50MHz

Loop BW = 100kHz

-10

0

10 20 30 40 50 60 70 80 90 100 110 120

8

8.1

8.2

8.3

8.4

8.5

8.6

8.7

TIME (μSEC)

CSP ON

CSP OFF

-150

-140

-130

-120

-110

-100

-90

-80

-70

-60

10

2

10

3

10

4

10

5

10

6

10

7

+25C

+85C

-40C

OFFSET FREQUENCY (Hz)

Fref = 50 MHz

Loop BW = 100 kHz

Typical Reference Sensitivity

-50

-40

-30

-20

-10

0

10

20

0

50

100

150

200

250

300

FREQUENCY (MHz)

R = Max, +25C

R = 3, +85C

R = Max, +85C

R = 3, +25C

[1] R refers to the reference path division ratio