1998 Apr 21

18

Philips Semiconductors

Product specification

32 kHz watch circuits with adaptive motor

pulse

PCA146x series

APPLICATION INFORMATION

Fig.12 Typical application circuit diagram.

0.5 pF or larger than 20 M

Ω.

Driving the motor at its minimum energy, probe and stray capacitance must be avoided.

handbook, full pagewidth

MSA939

VDD

M1

M2

RESET

VSS

TEST

OSC IN

OSC OUT

C M

(2)

C M

(2)

M

(1)

1.55 V

PCA146x

SERIES

1

2

3

4

8

7

6

5