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參數(shù)資料
| 型號(hào)： | PCA1485 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 32 kHz watch circuits with adaptive motor pulse |
| 中文描述： | 32千赫的自適應(yīng)電機(jī)脈沖手表電路 |
| 文件頁數(shù)： | 13/20頁 |
| 文件大?。?/td> | 118K |
| 代理商： | PCA1485 |
1998 Apr 21
13
Philips Semiconductors
Product specification
32 kHz watch circuits with adaptive motor
pulse
PCA148x series
CHARACTERISTICS
V
DD
= 1.55 V; V
SS
= 0 V; f
osc
= 32.768 kHz; T
amb
= 25
°
C; crystal: R
S
= 20 k
; C
1
= 2 to 3 fF; C
L
= 8 to 10 pF;
C
0
= 1 to 3 pF; unless otherwise specified.
Immunity against parasitic impedance = 20 M
from one pin to an adjacent pin.
Note
1.
Duty factor is 1 : 32 and RESET = V
DD
or V
SS
.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
V
DD1
V
DD
V
DD2
V
DDP
supply voltage
supply voltage variation
supply voltage pulse
supply voltage pulse
variation
supply current
supply current
supply current
T
amb
=
10 to +60
°
C
transient
programming
programming
1.2
5.0
0.55
1.55
5.1
0.6
2.5
0.25
5.2
0.65
V
V
V
V
I
DD1
I
DD2
I
DD3
between motor pulses
T
amb
=
10 to +60
°
C
stop mode; pin 8 connected
to V
DD
170
180
260
600
280
nA
nA
nA
Motor output
V
sat
saturation voltage
Σ
(P + N)
R
M
= 2 k
;
T
amb
=
10 to +60
°
C
between motor pulses
I
transistor
< 1 mA
150
200
mV
Z
o(sc)
output short-circuit
impedance
200
300
Oscillator
V
OSC ST
g
m
t
osc
f/f
C
i
C
o
starting voltage
transconductance
start-up time
frequency stability
input capacitance
output capacitance
1.2
6
8
12
15
1
0.05
×
10
6
10
15
0.3
×
10
6
12
18
V
μ
S
s
V
i(p-p)
≤
50 mV
V
DD
= 100 mV
pF
pF
Voltage level detector
V
EOL
V
EOL
TC
EOL
threshold voltage
hysteresis of threshold
temperature coefficient
1.30
1.38
10
1
1.46
V
mV
mV/K
Reset input
f
o
V
o
t
edge
I
im
I
i(av)
output frequency
output voltage swing
edge time
peak input current
average input current
1.4
32
1
320
10
Hz
V
μ
s
nA
nA
R = 1 M
; C = 10 pF
R = 1 M
; C = 10 pF
note 1
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