FemtoClock™ Multi-Rate 3.3V LVPECL Frequency Synthesizer

843034-06 DATA SHEET

8

REVISION B 8/17/15

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

I

IH

Input High Current

nCLK

V

IN

= V

CC

= 3.465V

150

µA

CLK

V

IN

= V

CC

= 3.465V

150

µA

I

IL

Input Low Current

nCLK

V

IN

= 0V, V

CC

= 3.465V

-150

µA

CLK

V

IN

= 0V, V

CC

= 3.465V

-5

µA

V

PP

Peak-to-Peak Input Voltage; NOTE 1

0.15

1.3

V

V

CMR

Common Mode Input Voltage; NOTE 1, 2

V

EE

+ 0.5

V

CC

- 0.85

V

NOTE 1: V

IL

should not be less than -0.3V.

NOTE 2: Common mode voltage is defined as V

IH

.

CC

= V

CCO_A

= V

CCO_B

= 3.3V±5%, V

EE

CC

= V

CCO_A

= V

CCO_B

= 3.3V±5%, V

EE

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

V

OH

Output High Voltage; NOTE 1

V

CCO

- 1.4

V

CCO

- 0.9

V

V

OL

Output Low Voltage; NOTE 1

V

CCO

- 2.0

V

CCO

- 1.7

V

V

SWING

Peak-to-Peak Output Voltage Swing

0.6

1.0

V

NOTE 1: Outputs terminated with 50

Ω to V

CCO_A,

V

CCO_B

- 2V.

CC

= V

CCO_A

= V

CCO_B

= V

CCO_REF

= 3.3V±5%, V

EE

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

Mode of Oscillation

Fundamental

Frequency

12

40

MHz

Equivalent Series Resistance (ESR)

50

Ω

Shunt Capacitance

7pF

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

f

IN

Input Frequency

XTAL_IN0/XTAL_OUT0,

XTAL_IN1/XTAL_OUT1

12

40

MHz

CLK/nCLK, REF_CLK

12

40

MHz

S_CLOCK

50

MHz

NOTE: For the input crystal, CLK/nCLK and REF_CLK frequency range, the M value must be set for the VCO to operate with-

in the 600MHz to 750MHz range. Using the minimum input frequency of 12MHz, valid values of M are 50

≤ M ≤ 62. Using the

maximum frequency of 40MHz, valid values of M are 15

≤ M ≤ 18.