8V49NS0312 datasheet(6/57 Pages) IDT

Teilenummer	8V49NS0312

Bauteilbeschribung	FemtoClock NG Clock Generator with 4 Dividers

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Hersteller	IDT [Integrated Device Technology]

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6

September 2, 2016

8V49NS0312 Datasheet

Table 2: Input Characteristics

Table 3: Output Characteristics

56

OSCO

Output

Crystal oscillator interface.

57

OSCI

Input

Crystal oscillator interface.

58

VCCA_XT

Power

Analog Power Supply Voltage for the Crystal Oscillator (3.3V).

59

NA[0]

Input

Pullup /

Pulldown

Control Inputs for Output Bank A. 3-level signals. Refer to Table 9.

60

RES

Analog

Connect a 2.8 k

 (1%) resistor to VEE for output current calibration.

61

SDATA

I/O

Pullup

I2C data Input/Output: LVCMOS interface levels. Open Drain Pin.

62

SCLK

Input

Pullup

I2C clock input. LVCMOS interface levels.

63

VCC_SP

Power

Power Supply Voltage for the I2C port (3.3V).

64

LOCK

Output

Lock status output. LVCMOS interface levels.

Logic Low = PLL not locked

Logic High = PLL locked

ePad

VEE

Power

Negative supply. Exposed pad must be connected to ground

a. Pulldown and Pullup refer to internal input resistors. See Table 2, Input Characteristics, for typical values.

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

CIN

Input Capacitancea

a. This specification does not apply to OSCI and OSCO pins.

3.5

pF

RPULLDOWN

Input Pulldown Resistor

51

k



RPULLUP

Input Pullup Resistor

51

k



Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

ROUT

Output

Impedance

LOCK

VCCa = 3.3V ± 5%

a. VCC denotes VCC_SP, VCCOD.

20



QD1

30



Table 1: Pin DescriptionsaCont.

Number

Name

Type

Description

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