PCD5002 datasheet(37/48 Pages) PHILIPS

37 / 48 page

1997 Jun 24

Philips Semiconductors

Product speciﬁcation

Advanced POCSAG and APOC-1 Paging

Decoder

PCD5002

14 AC CHARACTERISTICS

VDD = 2.7 V; VSS =0V; VPR = 2.7 V; Tamb =25 °C;. fosc = 76800 Hz.

SYMBOLS

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

System clock

Tclk

system clock period

fosc = 76800 Hz

−

13.02

−µs

Call alert frequencies

fAL

alert frequency

SPF byte 03H; bits:

D1, D0 = 0 0

−

2048

−

D1, D0 = 0 1

−

2731

−

D1, D0 = 1 0

−

3200

−

D1, D0 = 1 1

−

4096

−

fAW

warbled alert; modulation

frequency

alert set-up bit D2 = 1;

outputs ATL, ATH and LED

−

fAWH

warbled alert; high acoustic

alert frequency

alert set-up bit D2 = 1;

outputs ATL and ATH

−

fAL

−

fAWL

warbled alert; low acoustic alert

frequency

alert set-up bit D2 = 1;

outputs ATL and ATH

−

⁄2fAL

−

fVBP

pulsed vibrator frequency

(square wave)

low-level alert

−

Call alert duration

tALT

alert time-out period

−

tALL

ATL output time-out period

low-level alert

−

tALH

ATH output time-out period

high-level alert

−

tVBL

VIB output time-out period

low-level alert

−

tVBH

VIB output time-out period

high-level alert

−

tALC

alert cycle period

−

tALP

alert pulse duration

−

125

−

Real time clock reference

fref

real time clock reference

frequency

SPF byte 02H; bits:

D3, D2 = 0 0; note 1

−

32768

−

D3, D2 = 0 1; note 2

−

D3, D2 = 1 0

−

D3, D2 = 1 1

−

⁄60

−

tRFP

real time clock reference pulse

duration

all reference frequencies except

50 Hz (square wave)

−

13.02

−µs

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