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31 October, 2000
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The MAS1016 AM-Receiver chip is a highly sensitive,
simple to use AM receiver specially intended to
receive time signals in the frequency range from 40
kHz to 100 kHz. There are only a few external
components needed. The circuit has a preamplifier,
wide range automatic gain control, demodulator and
output comparator built in. The output signal can be
processed directly with an additional digital circuitry to
extract the data from the received signal.
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Wide Supply Voltage Range
Power Down Control
Only a Few External Components Needed
Highly Sensitive AM Receiver
Control for AGC On
Time Signal Receiver designed for MSF (British),
WWVB (USA), JG2AS (Japan) and DCF77
(Germany)
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31 October, 2000
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DIE size = 1.79 x 1.79 mm; PAD size = 100 x 100
m
Substrate is connected to Vdd.
Note: Coordinates are calculated using Vdd as a centre point
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Power Supply Voltage
VDD
0
m
0
m
Quarz Filter Output
QO
306
m
19
m
Quarz Filter Input
QI
587
m
19
m
AGC Capacitor
AGC
866
m
19
m
Receiver Output
OUT
1143
m
19
m
3
Demodulator Capacitor
DEC
1111
m
1436
m
AGC On Control
AON
868
m
1436
m
2
Power Down Input
PDN
551
m
1436
m
1
Receiver Input
RFI
309
m
1436
m
Power Supply Ground
VSS
16
m
1415
m
Notes:
1) Level = VSS means receiver on; VDD = receiver off
2) Level = VSS means AGC hold; VDD = AGC on (working)
-
Internal pull-up with current < 1
A which is switched off in power down
-
During AGC hold the receiver output OUT is hold down to VSS
3) 100% AM results in Level = VSS; 25% AM results in Level = VDD
-
the output is a current source/sink with |I
OUT
| > 5
A
-
at power down the output is tri-state
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Supply Voltage
V
DD
-V
SS
-0.3
5.0
V
Input Voltage
V
IN
V
SS
-0.3
V
DD
+0.3
V
Power Dissipation
P
MAX
100
mW
Operating Temperature
T
OP
-20
70
o
C
Storage Temperature
T
ST
-40
120
o
C
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Operating Conditions: VDD = 1.4V, Temperature = 25C
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Operating Voltage
V
DD
1.10
3.60
V
Current Consumption
I
DD
50
200
A
Stand-By Current
I
DDoff
0.1
A
Input Range
f
IN
40
100
kHz
Sensitivity
V
IN
0.001
50
mVrms
Input Levels |l
IN
|<0.5
A
V
IL
V
IH
0.8 V
DD
0.2 V
DD
V
Output Current
V
OL
<0.2 V
DD
;V
OH
>0.8 V
DD
|I
OUT
|
5
A
Output Pulse
T
0
65
125
ms
T
1
150
220
ms
Startup Time
T
Start
8
s
Output Delay Time
T
Delay
50
100
ms
4 (6)
DA1016.003
31 October, 2000
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Crystal frequencies:
77.503 kHz for DCF77 Receiver,
60 kHz for WWVB (USA) and MSF (British) Receiver
40 kHz JG2AS (Japan) Receiver
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DCF77 Receiver 0.47 to 1.0 uF
WWVB (USA), MSF (British) and JG2AS (Japan) 220 nF (external control of AON (=AGC on)is needed, for
more details see also DAEV1016)
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DA1016.003
31 October, 2000
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NC 1
VDD 2
NC 3
QO 4
NC 5
QI 6
AGC 7
OUT 8
NC 9
NC 10
20 VSS
19 NC
18 RFI
17 PDN
16 AON
15 DEC
14 NC
13 NC
12 NC
11 NC
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NC
1
VDD
2
P
Positive Power Supply
NC
3
QO
4
AO
Quartz Filter Output
NC
5
QI
6
AI
Quartz Filter Input
AGC
7
AO
AGC Capacitor
OUT
8
DO
Receiver Output
3
NC
9
NC
10
NC
11
NC
12
NC
13
NC
14
DEC
15
AO
Demodulator Capacitor
AON
16
DI
AGC On Control
2
PDN
17
AI
Power Down Input
1
RFI
18
AI
Receiver Input
NC
19
VSS
20
G
Power Supply Ground
Notes:
1) Level = VSS means receiver on; VDD = receiver off
2) Level = VDD means receiver on; VSS = receiver off (PDN = VDD)
Internal pull-down resistor > 1MOhm to VSS
3) 100 % AM results in Level = VSS; 25 % AM results in Level = VDD
- the output is a current source/sink with
[
lout
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>5
A
- at power down the output is tri-state
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