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參數資料
| 型號： | U4221B |
| 英文描述： | Radio Controlled Clock Receiver |
| 中文描述： | 電波鐘接收器 |
| 文件頁數： | 6/12頁 |
| 文件大小： | 169K |
| 代理商： | U4221B |
U4221B
TELEFUNKEN Semiconductors
Rev. A1, 15-May-96
Preliminary Information
6 (12)
Electrical Characteristics
Parameters
Test Conditions / Pins
Symbol
Min.
Typ.
Max.
Unit
FIELD STRENGTH INDICATION; FSI
Output voltage
HIGH
LOW
Output current
HIGH
LOW
FIELD STRENGTH SELECT; FSS
Input voltage
HIGH
LOW
Pin 12
R
LOAD
= 13 M to GND
R
LOAD
= 2.6 M to V
CCD
V
CC
–0.4
0.4
V
V
TCO
= V
CCD/2
V
TCO
= V
CCD/2
0.2
1.0
0.4
4.0
Pin 11
Generator output resistance
200 k
V
CC
–0.4
0.4
V
V
Test Circuit for DCF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
U 4221 B
Measurement
point
100 n
50 k
77,5 kHz
Generator
220 n
47 n
77.5 kHz
(with variable
output level)
Electronic switch
(Time Code)
T
1 s
Measuring device:
Oscilloscope with high impedance
probe(
20 M )
V
CCD
–0.8
V
Receiver input signal calibration:
Example: 2
V
eff
input signal
2 2 2
10
3
= 5.65 mV
pp
at measurement point
+V
CC
PON
TCO
It must be noted:
Input is shortened by 50
means, the antenna noise is not taken
into consideration.
that
Modulation depth
adjustment by
potentiometer
(carrier reduced to 25%)
100
93 7719 e
T = 100 ms (binary “0”)
or 200 ms (binary “1”)
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| U4222B | Radio Controlled Clock Receiver |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| U4221B-BFP | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Radio Controlled Clock Receiver |
| U4221B-BFPG1 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Radio Controlled Clock Receiver |
| U4222B | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Radio Controlled Clock Receiver |
| U4222B-CFP | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Radio Controlled Clock Receiver |
| U4222B-CFPG1 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Radio Controlled Clock Receiver |
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