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參數資料
| 型號： | U4224B-CFLG3 |
| 英文描述： | Time Code Receiver |
| 中文描述： | 時間碼接收機 |
| 文件頁數： | 6/17頁 |
| 文件大小： | 225K |
| 代理商： | U4224B-CFLG3 |
U4224B
TELEFUNKEN Semiconductors
Rev. A3, 02-Apr-96
6 (17)
Electrical Characteristics
V
CC
= 3 V, reference point pin 3, input signal frequency 80 kHz, T
amb
= 25 C, unless otherwise specified
Parameters
Test Conditions / Pin
Supply voltage range
pin 1
Supply current
pin 1
without reception signal
with reception signal = 200 V
OFF-mode
Set-up time after V
CC
ON
V
CC
= 1.5 V
AGC AMPLIFIER INPUT;
IN
pin 2
Reception frequency range
Minimum input voltage
R
res
= 100 k , Q
res
> 30
Maximum input voltage
Input capacitance to ground
TIMING CODE OUTPUT;
TCO
pin 16
Output voltage
HIGH
LOW
R
LOAD
= 650 k to V
CC
Output current
HIGH
LOW
V
TCO
= V
CC
/2
Decoding characteristics
DCF77 based on the values of
the application circuit
page KEIN MERKER:
TCO pulse width 100 ms
TCO pulse width 200 ms
Symbol
V
CC
I
CC
Min.
1.2
Typ.
Max.
5.25
Unit
V
15
30
25
0.1
A
A
A
s
t
2
f
in
V
in
V
in
C
in
40
80
1.5
kHz
V
mV
pF
1
80
1.5
40
R
LOAD
= 870 k to GND
V
OH
V
OL
V
CC
-0.4
0.4
V
V
V
TCO
= V
CC
/2
I
SOURCE
I
SINK
3
4
10
12
Delay compared with the
transient of the RF signal:
drop down (start transition)
rise for 100 ms pulse
(end transition)
rise for 200 ms pulse
(end transition)
WWVB based on the values of
the application circuit
page KEIN MERKER:
TCO pulse width 200 ms
TCO pulse width 500 ms
TCO pulse width 800 ms
t
100
t
200
t
s
t
e1
t
e2
60
160
30
25
10
90
190
130
230
60
55
30
ms
ms
ms
ms
ms
Decoding characteristics
Delay compared with the
transient of the RF signal:
drop down (start transition)
rise (end transition)
t
200
t
500
t
800
t
s
t
e
140
440
740
45
20
200
500
800
80
45
ms
ms
ms
ms
ms
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