AK2127 [GSG]
Radio Controlled Clock Receiver; 电波钟接收器
| 型号： | AK2127 |
| 厂家： | 
GUNTER SENICONDUCTOR GMBH. |
| 描述： | Radio Controlled Clock Receiver |
| 文件： | 总6页 (文件大小：70K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
GSG勁力半導体
Gunter Semiconductor GmbH
AK2127
EDITION 09/00
Receiver/ Demodulator for time
code signals transmitted by the
transmitter DCF77( Germany) ,
MSF(UK), or WWVB(USA)
For inquiry please contact :
China
Tel: 0086-755-3200442
Tel : 00852-26190748
sales@gsg-asia.com
Fax: 0086-755-3355520
Fax: 00852-24948080
Hong Kong
e-mail
Edition 09/00
Radio Controlled Clock Receiver
Short Description
Features
The TFA2127 is a bipolar integrated straight through
receiver circuit in the frequency range of 50...80 kHz.
The integrated circuit is designed for radio controlled
clock application with high sensitivity.
• Supply voltage range 1.2 ... 3.5 V
• Very high sensitivity < 1 µV
• High selectivity by X-tal resonator
• Start/stop-function available
• Complementary output stages
• Minimum external components
Package
1. Die
Pad-layout
9
11 10
12
13
8
Die dimensions
7
6
5
4
- die measures:
1.8 mm x 2.1 mm
14
15
- bond-pad measures: 100 µm x 100 µm
TFA 2127 X
- die height:
320 µm ± 15 µm
80 µm
16
3
- width of scribe line:
17
18 19
1 2
2. SOP 16
only for test purposes
6.0 ± 0.2
3.9 ± 0.1
9.9 ± 0.1
°
0...8
0.15
≥ 0.3
0.42 +- 0.07
1.27
≤ 0.7
0.06
M
0.25
16 15 14 13 12
11 10
9
8
1
2
3
4
5
6
7
09/00
1
Pin Description
Pad-No.
Pin-No.
Symbol
Function
(SOP 16)
1
2
3
4
5
6
7
1
-
E3Q
A2
A1
AP1
AP2
E1
Amplifier 3 input
Amplifier 2, non inverting output
Amplifier 2, inverting output
Bias control
Bias control
RF input, antenna
2
3
4
5
6
V
Supply voltage 2, internal band gap
CC2
8
9
7
8
PON
Stand-by and Start / Stop-switch
Supply voltage 1
V
CC1
10
11
12
13
14
15
16
17
18
19
9
10
11
-
12
13
14
15
16
16
OPD
OPU
GND1
KS
SR
CR
Output time code, pull-down
Output time code, pull-up
Ground (digital)
Comparator threshold
Clamping control input
AGC time constant
Low pass filter
Capacitor for bias stability
Ground (analog)
Ground (analog)
CD
AP3
GND3
GND2
Block Diagram and Test Circuit
6.8nF
GND1
22nF
GND1
GND1
47nF
4.7µF
AP2
5
AP1
4
A1
A2
2
E3Q
1
AP3
CD
16
CR
15
3
17
14
SR
6
E1
200k
V1
∆V1
V2
-
V3
CONTROL AMPLIFIER
1p
UE1
V
CC3
50
V
CC1
100k
TFA 2127
GND1
11
10
OPU
OPD
V
7
CC2
POWER SUPPLY
COMPARATOR
4.7µF
V3
V1, V2
19
9
8
18
GND3
12
GND1
13
100k
V
PON
GND2
KS
CC1
V2
V1
2
UE1: pot core A 1100 nH/w ; 2 x 25 windings with 0.2 CuL
L
2
09/00
TFA2127
Absolute Maximum Ratings
Parameter
Symbol
min.
0
max.
5.25
Unit
V
Supply voltage 1
V
CC1
Supply voltage 2
V
0
-0.3
-0.3
0
5.25
V
V
CC2
Output voltage OPD
Output voltage OPU
Input voltage SR
V
V
CC1
OPD
V
5.25
V
OPU
V
V
V
SR
CC1
Input voltage PON
Junction temperature
Ambient temperature range
V
0
V
V
PON
CC1
T
150
+70
°C
°C
j
T
-25
amb
Recommended Operational Conditions
Parameter
Symbol
min.
2.2
max.
3.5
Unit
V
Supply voltage 1
V
CC1
Supply voltage 2
RF input voltage
V
1.2
1
1.8
50000
80
V
CC2
V
µV
iE1
Reception frequency
f
50
KHz
09/00
TFA2127
3
Electrical Characteristics
Refering to the test circuit with generator signal
f = 77500 ± 5 Hz
pulse modulation of RF-signal from 100 % to 25 %
during modulation time t = 200 ms,
V
= V
= 1.4 V; V
= 0 V; T = 25 °C,
CC1
CC2
PON a
unless specified otherwise
Parameter
Symbol
min.
2.2
typ.
3.5
max.
5.25
Unit
V
Supply voltage 1
V
CC1
Supply voltage 2
V
1.2
1.4
1.8
V
CC2
Supply current
(V
= 3.5 V)
= 2.2 V)
I
400
400
540
530
690
690
µA
µA
CC1
CC11
(V
I
CC12
CC1
Supply current
I
300
500
640
1
µA
µA
CC2
Supply current stand-by
I
0.03
CC10
(V
= V
)
PON
CC1
Input current stand-by switch
Input current on SR
-I
14
0.3
20
2
µA
µA
ms
PON
-I
SR
1)
Output pulse duration (OPU)
t
180
100
190
220
OL
V
= 3 µV, 10 mV
iE1
Output LOW-current (OPU)
= 30 µV
I
200
45
µA
mV
µA
V
OL
V
iE1
Output LOW-voltage (OPU)
= 30 µV; I = 15 µA
V
200
OL
V
iE1
OL
Output HIGH-current (OPD)
= 30 µV
-I
100
1.1
330
1.3
0.8
OH
V
iE1
Output HIGH-voltage (OPD)
= 30 µV; -I =15 µA
V
OH
V
iE1
OH
Sensitivity
(min. RF input for t ≥ 180 ms)
V
1
µV
iE1
1)
OL
1)
Test in a special application circuit without socket.
4
09/00
TFA2127
Application Circuit With TFA2127 in SOP 16 for DCF-Receiver
OPU
OPD
47n
22n
4.7µ
100k
16
1
15
14
3
13
12
11
6
10
7
9
8
100k
TFA 2127
2
4
5
V
= 1.5 V
S
77.5 kHz
6.8n
4.7µ
FERRITE
ANTENNA
STAND BY *
100n
Switch on ground: Start, Power on
*
Switch open or on V : Stop, Stand-by
CC
Application Information
The PCB has to be designed for RF conditions. To achieve a high selectivity the parasitic parallel capacitance of
the X-tal resonator should be 1...1.5 pF.
For a trouble-free reception the capacitors on V
and AP3 have to be arranged nearby the chip food prints.
CC2
The dimensioning of the antenna resonant resistance is a compromise between high signal voltage and low
antenna noise voltage.
Q factor of antenna should be high for attenuation of interference signals. In the application circuit is R < 100 k;
res
Q = 80.
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