參數資料
型號： PCA2002CX8/5/1,025
廠商： NXP Semiconductors
文件頁數： 6/30頁
文件大?。?/td> 0K
描述： IC WATCH CIRCUIT 32KHZ DIE
標準包裝： 15,064
系列： *
PCA2002
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 8 — 25 November 2011
14 of 30
NXP Semiconductors
PCA2002
32 kHz watch circuit with programmable output period and pulse width
10. Characteristics
[1]
RL and CL are a load resistor and load capacitor, externally connected to pad RESET.
Table 10.
Characteristics
VDD = 1.55 V; VSS =0V; fosc = 32.768 kHz; Tamb =25 C; quartz crystal: Rs =40k, C1 = 2 fF 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
V
DD
supply voltage variation
V/t= 1V/s-
-
0.25
V
IDD
supply current
between motor pulses
-
90
120
nA
between motor pulses at
VDD =3.5 V
-
120
180
nA
Tamb = 10 C to +60 C
-
200
nA
stop mode;
pin RESET connected to VDD
-
100
135
nA
Motor output
Vsat
saturation voltage
Rmotor =2k;
Tamb = 10 C to +60 C
-
150
200
mV
Zo(sc)
output impedance (short
circuit)
between motor pulses;
Imotor <1mA
-
200
300
Oscillator
Vstart
start voltage
1.1
-
V
gm
transconductance
Vi(osc) 50 mV(p-p)
5
10
-
S
tstartup
start-up time
-
0.3
0.9
s
f/f
frequency stability
V
DD =100 mV
-
0.05
0.2
ppm
CL(itg)
integrated load
capacitance
4.3
5.2
6.3
pF
Rpar
parasitic resistance
allowed resistance between
adjacent pins
20
-
M
Pad RESET
fo
output frequency
-
32
-
Hz
VO(dif)
differential output voltage
RL =1M; CL =10pF
[1] 1.4
-
V
tr
rise time
RL =1M; CL =10pF
-
s
tf
fall time
RL =1M; CL =10pF
-
s
Ii(AV)
average input current
pin RESET connected to VDD
or VSS
-10
20
nA
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