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

7

7 - 5

HMC820LP6CE

v05.1010

FRACTIONAL-N SYNTHESIZER w/ INTEGRATED VCO

1095 - 1275, 2190 - 2550, 4380 - 5100 MHz

Free Running VCO Phase Noise

Over Temperature

Typical VCO Tuning Voltage After

Calibration

Closed Loop Integer Phase Noise

[1] Fractional Mode, 50 MHz Crystal, R=1, ~80 kHz Loop BW, (Loop filter values: Contact factory for component values) 2mA Charge Pump, -385µA

Offset.

-180

-170

-160

-150

-140

-130

-120

-110

-100

-90

-80

1095 MHz FF

2190 MHz FF

4380 MHz FF

10

2

10

3

10

4

10

5

10

6

10

7

10

8

OFFSET FREQUENCY (Hz)

-180

-170

-160

-150

-140

-130

-120

-110

-100

-90

-80

1096 MHz FF

2192 MHz FF

4384 MHz FF

10

2

10

3

10

4

10

5

10

6

10

7

10

8

OFFSET FREQUENCY (Hz)

-180

-160

-140

-120

-100

-80

-60

-40

10

3

10

4

10

5

10

6

10

7

10

8

1095 MHz FF

2190 MHz FF

4380 MHz FF

OFFSET FREQUENCY (Hz)

900

950

1000

1050

1100

0

1

2

3

4

5

TUNING VOLTAGE (V)

n0

n2

n4

n6

n8

n10

n12

n14

n16

n18

n20

n22

n24

n26

n31

fmax

fmin

fmax

n30

-170

-160

-150

-140

-130

-120

-110

-100

+27C

+85C

-40C

2150

2206

2263

2319

2375

2431

2487

2544

2600

FREQUENCY (MHz)

1 MHz Offset

100 kHz Offset

10 MHz Offset

0

1

2

3

4

5

VCO FREQUENCY

0

15

31

fmin

fmax

Typical Closed Loop Fractional Phase

Typical Tuning Curves vs. Switch Position

Free Running Phase Noise