DA9180.004
15 September, 2005
MAS9180
•
Single Band Receiver IC
•
High Sensitivity
•
Very Low Power Consumption
•
Wide Supply Voltage Range
•
Power Down Control
•
Control for AGC On
•
High Selectivity by Crystal Filter
•
Fast Startup Feature
DESCRIPTION
The MAS9180 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. Only a few external components are required for
time signal receiver. The circuit has preamplifier, wide
range automatic gain control, demodulator and output
comparator built in. The output signal can be
processed directly by an additional digital circuitry to
extract the data from the received signal. The control
for AGC (automatic gain control) can be used to switch
AGC on or off if necessary.
MAS9180 has both differential and asymmetric input
options and also options for compensating shunt
capacitances of different crystals (See ordering
information on page 15).
AM Receiver IC
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
Single Band Receiver IC
Highly Sensitive AM Receiver, 0.4
µV
RMS
typ.
Wide Supply Voltage Range from 1.1 V to 5.5 V
Very Low Power Consumption
Power Down Control
Fast Startup
Only a Few External Components Necessary
Control for AGC On
Wide Frequency Range from 40 kHz to 100 kHz
High Selectivity by Quartz Crystal Filter
Both Differential and Asymmetric Input Versions
Crystal Compensation Capacitance Options
APPLICATIONS
•
Single Band Time Signal Receiver WWVB (USA),
JJY (Japan), DCF77 (Germany), MSF (UK), HGB
(Switzerland) and BPC (China)
BLOCK DIAGRAM
QOP
RFIP
AGC Amplifier
QI
QOM
AON
Demodulator
&
Comparator
OUT
RFIM
Power Supply/Biasing
VDD
VSS
PDN
AGC
DEC
1 (15)
DA9180.004
15 September, 2005
MAS9180 PAD LAYOUT
MAS9180Ax,
x = 1..5 differential input,
B..F asymmetric input
VDD
QOP
QOM
QI
AGC
OUT
VSS
RFIP
PDN
AON
DEC
1474
µ
m
DIE size = 1.47 x 1.46 mm; PAD size = 80 x 80
µm
Note:
Because the substrate of the die is internally connected to VDD, the die has to be connected to VDD or left
floating. Please make sure that VDD is the first pad to be bonded. Pick-and-place and all component assembly
are recommended to be performed in ESD protected area.
Note:
Coordinates are pad center points where origin has been located in bottom-left corner of the silicon die.
Pad Identification
Power Supply Voltage
Positive Quartz Filter Output for Crystal
Negative Quartz Filter Output for Crystal
Quartz Filter Input for Crystal and External
Compensation Capacitor
AGC Capacitor
Receiver Output
Demodulator Capacitor
AGC On Control
Power Down
Positive Receiver Input
Negative Receiver Input
Power Supply Ground
Name
VDD
QOP
QOM
QI
AGC
OUT
DEC
AON
PDN
RFIP
RFIM
VSS
X-coordinate
174
µm
174
µm
174
µm
174
µm
174
µm
175
µm
1295
µm
1295
µm
1295
µm
1295
µm
1295
µm
1282
µm
Y-coordinate
1262
µm
1057
µm
854
µm
648
µm
444
µm
240
µm
225
µm
425
µm
624
µm
825
µm
1039
µm
1200
µm
Note
1456
µ
m
RFIM
4
1
2
3
5
5
Notes:
1) OUT = VSS when carrier amplitude at maximum; OUT = VDD when carrier amplitude is reduced (modulated)
-
the output is a current source/sink with |I
OUT
| > 5
µA
-
at power down the output is pulled to VSS (pull down switch)
2) AON = VSS means AGC off (hold current gain level); AON = VDD means AGC on (working)
-
Internal pull-up with current < 1
µA
which is switched off at power down
3) PDN = VSS means receiver on; PDN = VDD means receiver off
Fast start-up is triggered when the receiver is after power down (PDN=VDD) controlled to power up
(PDN=VSS) i.e. at the falling edge of PDN signal.
4) External crystal compensation capacitor pin QOM is connected only in MAS9190A5 and AF versions. It is left
unconnected in MAS9180A1 and AB..E versions which have internal compensation capacitor.
5) Differential input versions A1..A5 have 600 kΩ biasing MOSFET-transistors towards ground from both
receiver inputs RFIP and RFIM. Asymmetric input versions AB..AF have input pin RFIM unconnected.
2 (15)
DA9180.004
15 September, 2005
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply Voltage
Input Voltage
Power Dissipation
Operating Temperature
Storage Temperature
Symbol
V
DD
-V
SS
V
IN
P
MAX
T
OP
T
ST
Conditions
Min
-0.3
V
SS
-0.3
-40
-55
Max
6
V
DD
+0.3
100
+85
+150
Unit
V
V
mW
o
C
o
C
ELECTRICAL CHARACTERISTICS
Operating Conditions: VDD = 1.4V, Temperature = 25°C
Parameter
Operating Voltage
Current Consumption
Symbol
V
DD
I
DD
Conditions
VDD=1.4 V, Vin=0
µVrms
VDD=1.4 V, Vin=20 mVrms
VDD=3.6 V, Vin=0
µVrms
VDD=3.6 V, Vin=20 mVrms
Min
1.10
Typ
64
37
67
40
Max
5.5
Unit
V
µA
31
27
40
Stand-By Current
Input Frequency Range
Minimum Input Voltage
Maximum Input Voltage
Receiver Input Resistance
Receiver Input Capacitance
Receiver Input Resistance
Receiver Input Capacitance
Input Levels |l
IN
|<0.5
µA
Output Current
V
OL
<0.2 V
DD
;V
OH
>0.8 V
DD
Output Pulse
I
DDoff
f
IN
V
IN min
V
IN max
R
RFI
C
RFI
R
RFI
C
RFI
V
IL
V
IH
|I
OUT
|
T
100ms
T
200ms
T
500ms
T
800ms
0.4
20
Differential Input
MAS9180A1..5
f=40 kHz..77.5 kHz
Asymmetric Input
MAS9180AB..F
f=40 kHz..77.5 kHz
0.8 V
DD
5
1
µVrms ≤
V
IN
≤
20 mVrms
1
µVrms ≤
V
IN
≤
20 mVrms
1
µVrms ≤
V
IN
≤
20 mVrms
1
µVrms ≤
V
IN
≤
20 mVrms
Fast Start-up, Vin=0.4
µVrms
Fast Start-up, Vin=20 mVrms
50
150
400
700
500
800
1.3
3.5
50
330
4.5
670
6.4
91
65
0.1
100
1
µA
kHz
µVrms
mVrms
kΩ
pF
kΩ
pF
0.2 V
DD
V
µA
140
230
600
900
ms
ms
ms
ms
s
Startup Time
Output Delay Time
T
Start
T
Delay
100
ms
3 (15)
DA9180.004
15 September, 2005
TYPICAL APPLICATION
MAS9180A1
Note 1
Note 4
Optional
Control
for AGC on/hold
QI
QOM
AON
Demodulator
&
Comparator
OUT
Receiver
Output
Note 5
Ferrite
Antenna
QOP
RFIP
RFIM
AGC Amplifier
Power Supply/Biasing
VDD
1.4 V
VSS
PDN
AGC
C
AGC
+
10
µ
F
DEC
C
DEC
47 nF
Note 2
Note 3
Power Down /
Fast Startup
Control
Figure 1
Application circuit of differential input and internal compensation capacitance option version
MAS9180A1.
Note 1
C
C_EXT
=C
0
Note 4
Optional
MAS9180A5
Control
for AGC on/hold
Note 5
Ferrite
Antenna
QOP
RFIP
AGC Amplifier
QI
QOM
AON
Demodulator
&
Comparator
OUT
Receiver
Output
RFIM
Power Supply/Biasing
VDD
1.4 V
VSS
PDN
AGC
C
AGC
+
10
µ
F
DEC
C
DEC
47 nF
Figure 2
Note 3
Note 2
Power Down /
Fast Startup
Control
Application circuit of differential input and external compensation capacitance option version
MAS9180A5.
4 (15)
DA9180.004
15 September, 2005
TYPICAL APPLICATION (Continued)
Note 1
Note 4
Optional
Control
for AGC on/hold
QI
QOM
AON
Demodulator
&
Comparator
OUT
Receiver
Output
MAS9180A5
Note 5
Ferrite
Antenna
QOP
RFIP
RFIM
AGC Amplifier
Antenna
Frequency
Selection
Power Supply/Biasing
VDD
1.4 V
VSS
PDN
AGC
C
AGC
+
10
µ
F
DEC
C
DEC
47 nF
Note 3
Note 2
Power Down /
Fast Startup
Control
Figure 3
Dual band application circuit of differential input and external compensation capacitance option
version MAS9180A5.
Note 1
Note 4
Optional
MAS9180AB..E
Control
for AGC on/hold
Note 5
Ferrite
Antenna
QOP
RFIP
RFIM
X
QI
QOM
AON
Demodulator
&
Comparator
OUT
Receiver
Output
AGC Amplifier
Power Supply/Biasing
VDD
1.4 V
VSS
PDN
AGC
C
AGC
+
10
µ
F
DEC
C
DEC
47 nF
Figure 4
Note 2
Note 3
Power Down /
Fast Startup
Control
Application circuit of asymmetric input and internal compensation capacitance version option
MAS9180AB..E.
5 (15)
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