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參數資料
| 型號： | U4224B |
| 英文描述： | Time Code Receiver |
| 中文描述： | 時間碼接收機 |
| 文件頁數： | 7/17頁 |
| 文件大?。?/td> | 225K |
| 代理商： | U4224B |
U4224B
TELEFUNKEN Semiconductors
Rev. A3, 02-Apr-96
7 (17)
Unit
Max.
Typ.
Min.
Symbol
Test Conditions / Pin
JG2AS 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
Parameters
Decoding characteristics
Delay compared with the
transient of the RF signal:
start transition (RF on)
end transition (RF off)
t
200
t
500
t
800
t
s
t
e
240
420
720
10
30
410
490
790
110
220
ms
ms
ms
ms
ms
POWER ON/OFF CONTROL;
PON
pin 15
Input voltage
HIGH
LOW
Input current
Required I
IN
0.5 A
V
CC
-0.2
V
CC
-1.2
2
V
V
A
A
A
s
V
CC
= 3V
V
CC
= 1.5 V
V
CC
= 5 V
I
IN
1.4
1.7
0.7
3
0.5
Set-up time after PON
AGC HOLD MODE;
SL
pin 12
Input voltage
HIGH
LOW
Input current
t
2
Required I
IN
0.5 A
V
CC
-0.2
V
CC
-1.2
0.1
V
V
A
A
Vin = V
CC
Vin = GND
f
d
– f
ud
= 625 Hz
V
d
= 3 V, f
d
= 77.5 kHz
using 2 crystal filters
using 1 crystal filter
2.5
Rejection of interference
signals
a
f
a
f
43
22
dB
dB
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