U4224B Datasheet, PDF (6/17 Pages) TEMIC Semiconductors – Time Code Receiver

U4224B
Electrical Characteristics
V_CC = 3 V, reference point pin 3, input signal frequency 80 kHz, T_amb = 25 _C, unless otherwise specified
Parameters
Supply voltage range
Supply current
Test Conditions / Pin
Symbol Min. Typ. Max. Unit
pin 1
V_CC
1.2
5.25
V
pin 1
I_CC
m ^{without reception signal}
with reception signal = 200 V
OFF-mode
15
30
25
0.1
mmmAAA
Set-up time after V_CC ON V_CC = 1.5 V
AGC AMPLIFIER INPUT; IN
pin 2
t
2
s
Reception frequency range
Minimum input voltage
Maximum input voltage
W R_res = 100 k , Q_res > 30
Input capacitance to ground
TIMING CODE OUTPUT; TCO pin 16
f_in
40
V_in
80
kHz
1
1.5
mV
V_in
40
80
mV
C_in
1.5
pF
Output voltage
HIGH
LOW
W R_LOAD = 870 k to GND
W R_LOAD = 650 k to V_CC
V_OH
V_OL
V_CC - 0.4
V
0.4
V
Output current
HIGH
LOW
V_TCO = V_CC/2
V_TCO = V_CC/2
I_SOURCE
3
10
I_SINK
4
12
mA
mA
Decoding characteristics DCF77 based on the values of
the application circuit
page KEIN MERKER:
TCO pulse width 100 ms
TCO pulse width 200 ms
t₁₀₀
60
90
130
ms
t₂₀₀
160
190
230
ms
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
t_s
30
t_e1
25
t_e2
10
(end transition)
Decoding characteristics WWVB based on the values of
the application circuit
page KEIN MERKER:
TCO pulse width 200 ms
t₂₀₀
140
t₅₀₀
440
TCO pulse width 500 ms
TCO pulse width 800 ms
t₈₀₀
740
60
ms
55
ms
30
ms
200
ms
500
ms
800
ms
Delay compared with the
transient of the RF signal:
drop down (start transition)
rise (end transition)
t_s
45
t_e
20
80
ms
45
ms
6 (17)
TELEFUNKEN Semiconductors
Rev. A3, 02-Apr-96