PCA2002USLASHAA datasheet(10/20 Pages) PHILIPS

10 / 20 page

2004 Jan 20

Philips Semiconductors

Product speciﬁcation

32 kHz watch circuit with programmable

output period and pulse width

PCA2002

CHARACTERISTICS

VDD = 1.55 V; VSS =0V; fosc = 32.768 kHz; Tamb =25 °C; quartz crystal; Rs =40kΩ;C1 = 2 to 3 fF; CL = 8.2 pF; unless

otherwise speciﬁed.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Supplies

VDD

supply voltage

normal operating mode;

Tamb = −10 °C to +60 °C

1.1

1.55

3.6

∆VDD

supply voltage variation

∆V/∆t=1V/µs

−−

0.25

IDD

supply current

between motor pulses

−

120

between motor pulses at

VDD = 3.5 V

−

120

180

Tamb = −10 °C to +60 °C

−−

200

stop mode; pin RESET connected

to VDD

−

100

135

Motor output

Vsat

saturation voltage

∑(P+N)

RM =2kΩ;

Tamb = −10 °C to +60 °C

−

150

200

Zo(sc)

short-circuit impedance

between motor pulses;

Imotor <1mA

−

200

300

Ω

Oscillator

Vstart

starting voltage

1.1

−−

transconductance

VOSCIN ≤ 50 mV (p-p)

−µS

tsu

start-up time

−

0.3

0.9

∆f/f

frequency stability

∆VDD = 100 mV

−

0.05

0.2

ppm

integrated load

capacitance

4.3

5.2

6.3

Rpar

parasitic resistance

allowed resistance between

adjacent pins

−−

Ω

Reset

output frequency

−

∆Vo

output voltage swing

RL =1MΩ; CL = 10 pF

1.4

−−

rise time

RL =1MΩ; CL =10pF

−

−µs

fall time

RL =1MΩ; CL =10pF

−

−µs

Ii(av)

average input current

pin RESET connected to VDD or

VSS

−

PCA2002U/AA 数据表(PDF) 10 Page - NXP Semiconductors

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PCA2002U/AA 数据表(PDF) 10 Page - NXP Semiconductors

PCA2002U/AA 数据表(HTML) 10 Page - NXP Semiconductors

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