PR533 datasheet(11/36 Pages) NXP

11 / 36 page

PR533_SDS

All information provided in this document is subject to legal disclaimers.

Product short data sheet

COMPANY PUBLIC

Rev. 3.6 — 27 October 2014

206436

11 of 36

NXP Semiconductors

PR533

USB NFC integrated reader solution

10.3 Typical 27.12 MHz Crystal requirements

10.4 Pin characteristics for 27.12 MHz XTAL Oscillator (OSCIN, OSCOUT)

[1]



n(th) and f

n(th) define the mask for maximum acceptable phase noise of the clock signal at the OSCIN, OSCOUT inputs. See Figure 3

“27.12 MHz input clock phase noise spectrum mask”.

Table 10.

Crystal requirements

Symbol Parameter

Conditions

Min

Typ

Max

Unit

fxtal

crystal frequency

27.107

27.12

27.133

MHz

ESR

equivalent series resistance

100



load capacitance

Pxtal

crystal power dissipation

100

W

Table 11.

Pin characteristics for 27.12 MHz XTAL Oscillator (OSCIN, OSCOUT)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

ILI

input leakage current

RSTPD_N = 0 V

1-

VIH

HIGH-level input voltage

0.7

 V

DDA

-VDDA

VIL

LOW-level input voltage

0.3

 V

DDA

VOH

HIGH-level output voltage

1.1

VOL

LOW-level output voltage

0.2

fclk

clock frequency

0.05 %

27.12

+0.05 %

MHz



duty cycle



n(th)

phase noise threshold

[1] --

140

dBc/Hz

fn(th)

phase noise threshold fre-

quency



n(th) = 140dBc/Hz;

20dB/decade slope

[1] -

kHz

OSCIN

input voltage

0.65

input capacitance

VDDA = 2.8 V; Vi (DC) = 0.65 V;

Vi (AC) = 1 V p-p

-2

OSCOUT

input capacitance

Fig 3.

27.12 MHz input clock phase noise spectrum mask

φn(th)

phase noise

(dBc/Hz)

-20 dB/decade

acceptable phase

noise area

001aao393

fφn(th)

frequency (Hz)

PR533 Datasheet(PDF) 11 Page - NXP Semiconductors

PR533 Datasheet(HTML) 11 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36

Datasheet Download

Link URL