
1997 Jan 15
3
Philips Semiconductors
Product specification
Programmable multi-tone telephone ringer
PCD3360
1
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.
2
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.
3
QUICK REFERENCE DATA
4
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
VALUE
UNIT
f
TONE
available frequencies
(tones)
number of intervals per tone
sequence
lower limits of frequency
discriminator
upper limits of frequency
discriminator
impedance settings
switch-on delay
553, 600, 667, 800, 1000, 1067,
1333
15 or 16
Hz
n
int
f
LL
13.33 or 20
Hz
f
UL
30 or 60
Hz
Z
set
t
d(on)
with 50
loudspeaker
ringer frequency = 25 Hz
≈
7,
≈
10.5 or
≈
17.5
60 (maximum)
k
ms
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
PCD3360P
PCD3360T
DIP16
SO16
plastic dual in-line package; 16 leads (300 mil)
plastic small outline package; 16 leads; body width 7.5 mm
SOT38-4
SOT162-1