PCA2003_2

© NXP B.V. 2009. All rights reserved.

Product data sheet

Rev. 02 — 21 July 2009

2 of 21

NXP Semiconductors

PCA2003

32 kHz watch circuit with programmable adaptive motor pulse

3.

Applications

4.

Ordering information

[1]

Version AC: enhanced oscillator performance; to be used for new designs.

[2]

Packing method: bare die; chip on film frame carrier.

5.

Block diagram

Table 1.

Ordering information

Type number[1]

Package

Name

Description

Version

PCA2003U/10AA/1

PCA200xU

wire bond die; 8 bonding pads;

1.16

× 0.86 × 0.22 mm[2]

PCA200xU

PCA2003U/10AC/1

PCA200xU

wire bond die; 8 bonding pads;

1.16

× 0.86 × 0.22 mm[2]

PCA200xU

Fig 1.

Block diagram

001aai168

÷4

MOT2

MOT1

8

3

5

1

2

67

RESET

4

VOLTAGE DETECTOR,

OTP-CONTROLLER

MOTOR CONTROL WITH

ADAPTIVE PULSE MODULATION

STEP

DETECTION

PCA2003

DIVIDER

RESET

reset

32 Hz

1 Hz

8 kHz

OSCILLATOR

OSCIN

OSCOUT

i.c.

OTP-MEMORY

TIMING ADJUSTMENT,

INHIBITION