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參數(shù)資料
| 型號： | PCA1461 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 32 kHz watch circuits with adaptive motor pulse |
| 中文描述： | 32千赫的自適應電機脈沖手表電路 |
| 文件頁數(shù)： | 13/24頁 |
| 文件大?。?/td> | 132K |
| 代理商： | PCA1461 |
1998 Apr 21
13
Philips Semiconductors
Product specification
32 kHz watch circuits with adaptive motor
pulse
PCA146x series
Power-on reset
For correct operation of the Power-on reset the rise time of
V
DD
from 0 V to 2.1 V should be less than 0.1 ms.
All resetable flip-flops are reset. Additionally the polarity of
the first motor pulse is positive: V
M1
V
M2
≥
0 V.
Customer testing
An output frequency of 32 Hz is provided at RESET (pin 8)
to be used for exact frequency measurement. Every
minute a jitter occurs as a result of the inhibition, which
occurs 90 to 150 ms after disconnecting the RESET from
V
DD
.
Connecting the RESET to V
DD
stops the motor pulses
leaving them in a 3-state mode and sets the motor pulse
width for the next available motor pulse to stage 1 in the
silver-oxide mode. A 32 Hz signal without jitter is produced
at the TEST pin.
Debounce time RESET = 14.7 to 123.2 ms.
Connecting RESET to V
SS
activates Tests 1 and 2 and
disables the inhibition.
Test 1, V
DD
> V
EOL
. Normal function takes place except
that the motor pulse period is t
T1
= 125 ms instead of t
T
,
and the motor pulse stage is reduced every second
instead of every 8 minutes. At TEST a speeded-up
8 minute signal is available.
Test 2, V
DD
< V
EOL
. Motor pulses of stage 8 are produced,
with a time period of t
T2
= 31.25 ms.
Test and reset modes are terminated by disconnecting the
RESET pin.
Test 3, V
DD
> 5.1 V
. Motor pulses of stage 8 are
produced, with a time period of t
T3
= 31.25 ms and
n
×
122
μ
s to check the contents of the EEPROM. At
TEST a speeded-up cycle for motor pulse period signal t
T
is available at 1024 times its normal frequency.
Decreasing V
DD
voltage level to lower than 2.5 V between
two motor pulses returns the circuit to normal operating
conditions.
AVAILABLE TYPES
Refer to Chapters “Ordering information” and “Functional description and testing”.
Note
1.
U = Chip in tray; U/7 = chip with bumps on tape; U/10 = chip on foil.
SHORT
TYPE
NUMBER
DELIVERY
FORMAT
(1)
PERIOD
t
T
(s)
SPECIFICATIONS
PULSE
WIDTH
t
P
(ms)
DRIVE
(%)
DETECTION
CRITERION
EEPROM
BATTERY
EOL
DETECTION
REMARKS
1461
U; U/10
1
7.8
max. 100
81
max. 100
81
max. 100
81
max. 100
P = 1
N = 2
P = 1
N = 2
P = 1
N = 2
P = 1
N = 2
P = 1
N = 2
yes
yes
1.5 V and
2.1 V Lithium
1.5 V and
2.1 V Lithium
1.5 V and
2.1 V Lithium
1.5 V
1462
U; U/7;
U/10
U; U/10
1
5.8
yes
yes
1463
1
3.9
yes
yes
1465
U/10; U/7
1
5.8
yes
no
1467
U/10
1
7.8
max. 100
yes
no
1.5 V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCA1461U | 32 kHz watch circuits with adaptive motor pulse |
| PCA1462 | 32 kHz watch circuits with adaptive motor pulse |
| PCA1462U | 32 kHz watch circuits with adaptive motor pulse |
| PCA1463 | 32 kHz watch circuits with adaptive motor pulse |
| PCA1463U | 32 kHz watch circuits with adaptive motor pulse |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA1461U | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32 kHz watch circuits with adaptive motor pulse |
| PCA1461U/10 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32 kHz watch circuits with adaptive motor pulse |
| PCA1462 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32 kHz watch circuits with adaptive motor pulse |
| PCA1462U | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32 kHz watch circuits with adaptive motor pulse |
| PCA1462U/10 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32 kHz watch circuits with adaptive motor pulse |
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