LTC6909

4

6909f

Frequency Error vs Temperature

Supply Current vs Supply Voltage

Supply Current

Supply Current

of the PH0, PH1 and PH2 pins as described in the Applications Information

section.

PH = 3, 4, 5, 6, 7 or 8.

Note 6: Guaranteed by 5V test.

Note 7: To conform to the Logic IC Standard, current out of a pin is

defined as a negative value.

Note 8: Output rise and fall times are measured between the 10% and the

90% power supply levels with no output loading. These specifications are

based on characterization.

ELECTRICAL CHARACTERISTICS

TYPICAL PERFORMANCE CHARACTERISTICS

Note 9: Long term drift on silicon oscillators is primarily due to the

movement of ions and impurities within the silicon and is tested at 30°C

under otherwise nominal operating conditions. Long term drift is specified

as ppm/√kHr due to the typically nonlinear nature of the drift. To calculate

drift for a set time period, translate that time into thousands of hours, take

the square root and multiply by the typical drift number. For instance, a

year is 8.77kHr and would yield a drift of 888ppm at 300ppm/√kHr. Drift

without power applied to the device (aging) may be approximated as

1/10th of the drift with power, or 30ppm/√kHr for a 300ppm/√kHr device.

SUPPLY VOLTAGE (V)

2.7

0

200

600

800

1000

3.7

4.7

1800

6909 G04

400

3.2

4.2

1200

1400

1600

PH = 3, SSFM ENABLED

10k

0

1000

2000

3000

500

1500

2500

100k

1M

10M

6909 G05

10k

0

1000

2000

3000

500

1500

2500

100k

1M

10M

6909 G06

10k

5

4

3

2

1

0

–1

–2

–3

–4

–5

100k

1M

10M

6909 G01

TYPICAL MAX

GUARANTEED MIN

OVER TEMPERATURE

TYPICAL MIN

GUARANTEED MAX

OVER TEMPERATURE

10k

5

4

3

2

1

0

–1

–2

–3

–4

–5

100k

1M

10M

6909 G02

TYPICAL MAX

GUARANTEED MAX

OVER TEMPERATURE

GUARANTEED MIN

OVER TEMPERATURE

TYPICAL MIN

TEMPERATURE (°C)

–40

20

60

6909 G03

–20

0

40

1.00

0.75

0.50

0.25

0

–0.25

–0.50

–0.75

–1.00

80

TYPICAL MAX

TYPICAL MIN