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參數(shù)資料
| 型號(hào)： | U4221B |
| 英文描述： | Radio Controlled Clock Receiver |
| 中文描述： | 電波鐘接收器 |
| 文件頁(yè)數(shù)： | 5/12頁(yè) |
| 文件大?。?/td> | 169K |
| 代理商： | U4221B |
U4221B
Preliminary Information
TELEFUNKEN Semiconductors
Rev. A1, 15-May-96
5 (12)
Absolute Maximum Ratings
Parameters
Symbol
V
CC
T
amb
R
stg
T
j
±
V
ESD
Value
5.5
–20 to +70
–30 to +85
125
2000
Unit
V
C
C
C
V
Supply voltage
Ambient temperature range
Storage temperature range
Junction temperature
Electrostatic handling
(MIL Standard 883
°
C)
Thermal Resistance
Parameters
Symbol
R
thJA
Value
70
Unit
K/W
Thermal resistance
Electrical Characteristics
V
CCA
, V
CCD
= 3.0 V, reference point Pins 3, 7, 15, input signal according to DCF 77 transmitter, T
amb
= 25 C,
unless otherwise specified
Parameters
Test Conditions / Pins
Pins 9, 16
Symbol
V
CCA
V
CCD
I
CC
Min.
2.4
Typ.
Max.
5.5
Unit
V
Supply voltage range
Supply current
I
CC
= I
CCA
+ I
CCD
Pins 9, 16
without reception signal
with reception signal >
20 V OFF-mode
40
35
0.2
80
1.75
A
A
A
Reception frequency range
Minimum input voltage
f
in
V
in
60
kHz
V
R
gen
= 50
R
res
R
gen
= 50
R
res
Pins 1,2
300 k , Q
res
> 30
Pins 1,2
300 k , Q
res
> 30
Pins 1, 2
1.5
Maximum input voltage
V
in
40
mV
Input capacitances to
ground
Set-up time after POWER
ON
TIMING CODE OUTPUT; TCO
Output voltage
HIGH
LOW
Output current
HIGH
LOW
Decoding characteristics
input carrier reduction
100 ms input carrier
reduction 200 ms
POWER ON/OFF CONTROL; PON
Input voltage
HIGH
LOW
C
in 1
C
in 2
t
pon
1
1
pF
2.5
5
s
Pin 13
R
LOAD
= 13 M to GND
R
LOAD
= 2.6 M to V
CCD
V
OH
V
OL
V
CCD
-0.4
0.4
V
V
V
TCO
= V
CCD/2
V
TCO
= V
CCD/2
I
SOURCE
I
SINK
0.2
1
0.4
4
t
100
t
200
50
150
110
230
ms
ms
Pin 14
Generator output resistance
200 k
V
CCD
–0.4
0.4
V
V
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