t4225b ATMEL Corporation, t4225b Datasheet - Page 6

• Manufacturer Part Number: t4225b
• Description: Low-cost Time-code Receiver
• Manufacturer: ATMEL Corporation

Absolute Maximum Ratings
Electrical Characteristics
V
T4225B
Supply voltage
Ambient temperature range
Storage temperature range
Junction temperature
Electrostatic handling ( MIL Standard 883 D ),
except Pad IN, Q1A, Q1B, Q2A, Q2B
Supply voltage range
Supply current
Set-up time after V
AGC amplifier input; IN
Reception frequency range
Minimum input voltage
Maximum input voltage
Input capacitance to ground
Time code output; TCO
Output voltage
Output current
Decoding characteristics
for typical fieldstrentgh
1 mV/m
6 (16)
CC
HIGH
LOW
HIGH
LOW
= 3 V, reference point Pin 3, input signal frequency 80 kHz, T
Parameters
CC
ON
Parameters
Without reception signal
with reception signal = 200
OFF mode
V
R
Pad TCO
R
R
V
V
DCF77 based on the values of
the application circuit fig. 20:
TCO pulse width 100 ms
TCO pulse width 200 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
(end transition)
Pad IN
res
LOAD
LOAD
CC
TCO
TCO
= 100 k
= 1.5 V
Test Conditions / Pin
= V
= V
= 870 k
= 650 k
CC
CC
W
/2
/2
, Q
W
W
res
Pad V
Pad V
to GND
to V
> 30
CC
CC
CC
m
V
Symbol
I
T
V
Symbol
R
SOURCE
V
amb
I
amb
T
V
V
V
CC
stg
SINK
t
t
I
V
V
C
ESD
t
t
f
100
200
j
CC
t
OH
e1
e2
CC
t
in
OL
s
in
in
in
= 25 _ C, unless otherwise specified
V
CC
Min.
160
1.2
40
40
60
30
25
10
3
4
- 0.4
–40 to +85
–40 to +85
Value
2000
5.25
125
Typ.
190
1.5
15
80
10
12
90
2
1
Rev. A3, 03-Dec-98
Max.
5.25
130
230
0.1
1.5
0.4
25
20
80
60
55
30
Unit
_ C
_ C
_ C
V
V
Unit
kHz
mV
mA
mA
m
m
m
m
pF
ms
ms
ms
ms
ms
V
V
V
s
A
A
A
V