PCD3360 datasheet(3/20 Pages) PHILIPS

3 / 20 page

1997 Jan 15

Philips Semiconductors

Product speciﬁcation

Programmable multi-tone telephone ringer

PCD3360

FEATURES

• Output signals for electro-dynamic transducer

(loudspeaker) or for piezo-electric transducer (PXE)

• 7 basic output frequencies (tones) and a pause

• 4 selectable tone sequences

• 4 selectable repetition rates

• 3 selectable impedance settings

• 3-step automatic swell

• Delta-modulated output signal that approximates a

sinewave

• Input ringing frequency discriminator with selectable

upper and lower frequency limits

• Output for optical signal

• Customized tone sequences, impedance settings and

automatic swell levels are mask programmable.

GENERAL DESCRIPTION

The PCD3360 is a CMOS integrated circuit, designed to

replace the electro-mechanical bell in telephone sets.

It meets most postal requirements, with selectivity of

output tone sequences and input ringer frequencies.

Output signals for a loudspeaker or for a piezo-electric

(PXE) transducer are provided. No audio transformer is

required since the loudspeaker is driven in class D.

QUICK REFERENCE DATA

ORDERING INFORMATION

SYMBOL

PARAMETER

CONDITIONS

VALUE

UNIT

fTONE

available frequencies

(tones)

553, 600, 667, 800, 1000, 1067,

1333

nint

number of intervals per tone

sequence

15 or 16

fLL

lower limits of frequency

discriminator

13.33 or 20

fUL

upper limits of frequency

discriminator

30 or 60

Zset

impedance settings

with 50

Ω loudspeaker

≈7, ≈10.5 or ≈17.5

Ω

td(on)

switch-on delay

ringer frequency = 25 Hz

60 (maximum)

TYPE

NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

PCD3360P

DIP16

plastic dual in-line package; 16 leads (300 mil)

SOT38-4

PCD3360T

SO16

plastic small outline package; 16 leads; body width 7.5 mm

SOT162-1

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