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Número de pieza
componentes Descripción
T4224B-CF Ver la hoja de datos (PDF) - Temic Semiconductors
Número de pieza
componentes Descripción
Fabricante
T4224B-CF
Time Code Receiver
Temic Semiconductors
T4224B-CF Datasheet PDF : 17 Pages
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U4224B
Parameters
Decoding characteristics
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
Delay compared with the
transient of the RF signal:
start transition (RF on)
end transition (RF off)
y
POWER ON/OFF CONTROL;
PON
pin 15
Input voltage
Required I
IN
0.5
m
A
HIGH
LOW
Input current
Set-up time after PON
V
CC
= 3V
V
CC
= 1.5 V
V
CC
= 5 V
AGC HOLD MODE;
SL
Input voltage
HIGH
LOW
y
pin 12
Required I
IN
0.5
m
A
Input current
Rejection of interference
signals
Vin = V
CC
ȧ ȧ
Vin = GND
f
d
– f
ud
= 625 Hz
V
d
= 3
m
V, f
d
= 77.5 kHz
using 2 crystal filters
using 1 crystal filter
Symbol Min.
t
200
240
t
500
420
t
800
720
t
s
10
t
e
30
V
CC
- 0.2
I
IN
1.4
t
V
CC
- 0.2
a
f
a
f
Typ. Max. Unit
410
ms
490
ms
790
ms
110
ms
220
ms
V
V
CC
- 1.2 V
1.7
2
m
A
0.7
m
A
3
m
A
0.5
2
s
V
V
CC
- 1.2 V
0.1
m
A
2.5
m
A
43
dB
22
dB
TELEFUNKEN Semiconductors
Rev. A3, 02-Apr-96
7 (17)
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