SAA5264PSSLASHM3 datasheet(13/24 Pages) PHILIPS

13 / 24 page

2000 Jan 27

Philips Semiconductors

Preliminary speciﬁcation

10 and 1 page intelligent teletext decoders

SAA5264; SAA5265

Notes

1. Periphery supply current is dependent on I/O external components and voltage levels.

2. Crystal order number 4322 143 05561. If crystal 4322 143 05561 is not used, then the formulae in the crystal

specification should be used.

3. Cosc may need to be reduced from the initially selected value. Cchip = 7 pF, the mean of the capacitances due to the

chip at XTALIN and at XTALOUT. Cstray is a value for the mean of the stray capacitances due to the external circuit

at XTALIN and XTALOUT. The maximum value for Cxtal(hold) is to ensure start-up.

Crystal oscillator

XTALIN (PIN 41)

VIL

LOW-level input

voltage

VSSA

−−

VIH

HIGH-level input

voltage

−−

VDDA

input capacitance

−−

XTALOUT (PIN 42)

output capacitance

−−

Crystal speciﬁcation; notes 2 and 3

fxtal(nom)

nominal frequency

fundamental

mode

−

MHz

load capacitance

−−

Cmot

motional capacitance

Tamb =25 °C

−−

Rxtal

crystal resonance

resistance

Tamb =25 °C

−−

Ω

Cosc

capacitance at

XTALIN, XTALOUT

Tamb =25 °C

−−

Cxtal(hold)

crystal holder

capacitance

Tamb =25 °C

−−

Txtal

crystal temperature

range

−20

+25

+85

°C

adjustment tolerance

Tamb =25 °C

−−

±50 × 10−6

drift

−−

±100 × 10−6

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

chip

–

stray

–

osc

------------

–

chip

-------------

–

stray

---------------

–

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