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For price, delivery, and to place orders: Hittite Microwave Corporation,20 Alpha Road, 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

HMC830LP6GE

v00.0311

FRACTIONAL-N PLL WITH INTEGRATED VCO

25 - 3000 MHz

Figure 1. Typical Closed Loop Integer

Phase Noise[“LoopFilterConfigurationTable”]

Figure 5. Typical VCO Sensitivity

-200

-180

-160

-140

-120

-100

1

10

100

1000

10000

100000

fout 875 MHz, Loop BW 74 kHz, rms jitter 147 fs

fout 875 MHz, Loop BW 90 kHz, rms jitter 116 fs

fout 1600 MHz, Loop BW 74 kHz, rms jitter 127 fs

fout 1600 MHz, Loop BW 90 kHz, rms jitter 97 fs

fout 2500 MHz, Loop BW 74 kHz, rms jitter 153 fs

fout 2500 MHz, Loop BW 90 kHz, rms jitter 104 fs

OFFSET (kHz)

-180

-160

-140

-120

-100

-80

-60

-40

1

10

100

1000

10000

100000

2817 MHz

2418 MHz

1996 MHz

1575 MHz

OFFSET (kHz)

-180

-170

-160

-150

-140

-130

-120

-110

-100

10

100

1000

10000

27 C

-40 C

85 C

FREQUENCY (MHz)

100 MHz Offset

1 MHz Offset

100 kHz Offset

Figure 2. Typical Closed Loop Fractional

Phase Noise [“LoopFilterConfigurationTable”]

Figure 3. Free Running Phase Noise

Figure 4. Free Running VCO

Phase Noise vs.Temperature

0

1

2

3

4

5

VCO FREQUENCY

0

15

31

fmin

fmax

-200

-180

-160

-140

-120

-100

1

10

100

1000

10000

100000

fout 880 MHz, Loop BW 74 kHz, rms jitter 149 fs

fout 880 MHz, Loop BW 90 kHz, rms jitter 142 fs

fout 1605 MHz, Loop BW 74 kHz, rms jitter 130 fs

fout 1605 MHz, Loop BW 90 kHz, rms jitter 123 fs

fout 2505 MHz, Loop BW 74 kHz, rms jitter 157 fs

fout 2505 MHz, Loop BW 90 kHz, rms jitter 131 fs

OFFSET (kHz)

0

10

20

30

40

50

60

0

1

2

3

4

5

2817 MHz at 2.5V, Tuning Cap 15

2418 MHz at 2.5V, Tuning Cap 15

1996 MHz at 2.5V, Tuning Cap 15

1575 MHz at 2.5V, Tuning Cap 15

TUNING VOLTAGE (V)

Figure 6. Typical Tuning Voltage

After Calibration