STW81200 datasheet(13/58 Pages) STMICROELECTRONICS

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STW81200

Electrical specifications

All electrical specifications are given at 25oC TAMB and in a full-current mode, unless

otherwise stated.

Table 6. Electrical specifications

Symbol

Parameter

Condition

Min

Typ

Max

Units

Output frequency range

FOUT

Output Frequency

Direct output

3000

6000

MHz

Divider by 2 output

1500

3000

MHz

……

…

MHz

Divider by 64 output

46.875

93.75

MHz

VCO dividers

VCO Divider Ratio

Integer Mode

131071

Fractional mode (DSM 1st

Order)

510

Fractional mode (DSM 2nd

Order)

509

Fractional mode (DSM 3rd

Order)

507

Fractional mode (DSM 4st

Order)

503

Xtal oscillator

FXTAL

XTAL frequency range

MHz

ESRXTAL

XTAL ESR

Ω

PXTAL

XTAL Power Dissipation

CINXTAL

XTAL Oscillator Input

capacitance

Single ended

0.6

PNXTAL

XTAL Oscillator Phase

Noise Floor

50 MHz XTAL

-162

dBc/Hz

TOLXTAL

XTAL Oscillator accuracy

@12 MHz, 25 ºC

ppm

Reference clock and phase frequency detector

Fref

Reference input

frequency(1)

-10

800

MHz

Reference input sensitivity

Differential Mode

0.2

1.25

Single Ended Mode

0.35

1.25

PNREFIN

Reference Input Buffer Phase

Noise Floor

Single Ended Mode @100 MHz,

sinusoidal signal 1.25 Vp

-163

dBc/Hz

LVDS signal @100 MHz

400 mVp

-159

dBc/Hz

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