LTC6930-X.XX

5

6930fa

The

TIMING CHARACTERISTICS

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: LTC6930C is guaranteed functional over the operating range of

–40°C to 85°C.

Note 3: The LTC6930C is guaranteed to meet specified performance from

0°C to 70°C. The LTC6930C is designed, characterized and expected to

meet specified performance from –40°C to 85°C but is not tested or QA

sampled at these temperatures. The LTC6930I is guaranteed to meet

specified performance from –40°C to 85°C. The LTC6930H is guaranteed

to meet specified performance from –40°C to 125°C.

Note 4: Frequency accuracy and frequency drift are defined as deviation

from the nominal frequency or the nominal frequency divided by the

integer set through the DIV pins for each part. The nominal frequency for

the LTC6930 family of parts are defined as follows:

LTC6930-4.19

LTC6930-5.00

LTC6930-7.37

LTC6930-8.00

LTC6930-8.19

Note 5: Long-term drift of 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 non-linear 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 89ppm at 30ppm/√kHr. Drift

without power applied to the device may be approximated as 1/10th of the

drift with power, or 3ppm/√kHr for a 30ppm/√kHr device.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

3

ns

DCY

Duty Cycle

DIVA = DIVB = DIVC = 0

DIVA or DIVB or DIVC ≠ 0

l

l

l

35

35

48

50

50

50

65

70

52

%

%

%

Edge of DIV Signal to 1st Accurate Output Cycle

1

Cycle

Power On Delay

l

110

μs

The

DC ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Maximum Low Level Input Voltage,

All Digital Input Pins

l

0.7

1.25

V

Digital Input Leakage Current, All

Digital Input Pins

l

±1

μA

Output Resistance

40

Ω

High Level Output Voltage

DIVA = DIVB = DIVC = 0, No Load

l

l

l

5.4

2.9

1.8

5.5

3

2

1.7

V

V

V

V

DIVA = DIVB = DIVC = 0, 1k

Ω Load to GND

l

l

l

5

2.6

1.5

5.2

2.7

1.6

1.5

V

V

V

V

Low Level Output Voltage

DIVA = DIVB = DIVC = 0, No Load

l

l

l

0

0

0

0

0.1

0.1

0.1

V

V

V

V

DIVA = DIVB = DIVC = 0, 1k

l

l

l

0.3

0.3

0.3

0.3

0.7

0.5

0.35

V

V

V

V