Sanyo LA1654FN Time code reception ic Datasheet

Ordering number : ENA0204
Monolithic Linear IC
LA1654FN
Time Code Reception IC
Overview
The LA1654FN time code reception IC receives long-wave time standard broadcasts (such as the Japanese JJY and
German DCF77 standards) and detects and outputs the time code superposed on the long-wave signal.
Applications can automatically correct their clock's time setting by using the time code received by the LA1654 FN.
Functions
• RF amplifier, rectifier, detector, time code output, and standby circuit.
Features
• Low-voltage operation (operating VCC as low as 1.5V).
• Standby mode current drain less than or equal to 0.05µA.
Japan : JJY 40/60kHz
Germany : DCF77 77.5kHz
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Allowable power dissipation
Symbol
Conditions
Ratings
VCC max
Pd max
Ta ≤ 70°C
Unit
5.0
V
10
mW
Operating temperature
Topr
-20 to +70
°C
Storage temperature
Tstg
-40 to +125
°C
Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
min
typ
max
Unit
Recommended supply voltage
VCC
1.5
3.0
V
Operating supply voltage range
VCC op
1.1
3.6
V
Any and all SANYO Semiconductor products described or contained herein do not have specifications
that can handle applications that require extremely high levels of reliability, such as life-support systems,
aircraft's control systems, or other applications whose failure can be reasonably expected to result in
serious physical and/or material damage. Consult with your SANYO Semiconductor representative
nearest you before using any SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor assumes no responsibility for equipment failures that result from using products
at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor
products described or contained herein.
92706 / 12506 MS OT B8-7022 No.A0204-1/4
LA1654FN
Operating Characteristics at Ta = 25°C, VCC = 3.0V
Overall Characteristics
Parameter
Symbol
Conditions
Quiescent current
ICCO
No input, Pin15 = 0V, Pin10 = 3V
Standby mode current drain
ISTB
Pin15 = 3.0V
Ratings
min
30
typ
37
max
Unit
50
µA
0.05
µA
AGC Amplifier Input Characteristics
Parameter
Symbol
Input impedance
Conditions
ZI
Pin1
Input frequency range
FIN
Pin1
Minimum input voltage
VMIN
Pin1 input level
Maximum input voltage
VMAX
Pin1 input level
Ratings
min
typ
max
800
37.5
Unit
kΩ
80.0
1
100
kHz
µVrms
mVrms
TCO Output Characteristics - Input signal = Pin1, fin = 40kHz, Pin10 = 3V, Pin15 = 0V
Parameter
Symbol
High-level output voltage
Conditions
Ratings
min
typ
Pin 11 output level
Low-level output voltage
VOL
Pin 11 output level
0.1
V
Output pulse width
T500
VIN = 0 to 100dBµV, AM modulation
(1Hz square wave, duty = 50%, 10:1 modulation)
400
520
600
ms
T800
VIN = 0 to 100dBµV, AM modulation
(1Hz square wave, duty = 80%, 10:1 modulation)
600
730
800
ms
T200
VIN = 0 to 100dBµV, AM modulation
(1Hz square wave, duty = 20%, 10:1 modulation)
200
300
400
ms
Output pulse width
(800 ms input)
Output pulse width
(200 ms input)
3.0
Unit
VOH
(500 ms input)
2.9
max
0
V
STB Control Characteristics
Parameter
Symbol
Conditions
Ratings
min
typ
max
Unit
Standby on voltage
VSH
Pin15 DC voltage
2.9
3.0
Standby off voltage
VSL
Pin15 DC voltage
0
0.1
V
V
High-level pin input current
ISH
Pin15 = 3V
0.1
µA
Low-level pin input current
ISL
Pin15 = 0V
0.3
µA
HOLD Control Characteristics - Pin15 = 0V
Parameter
Symbol
Conditions
Ratings
min
typ
max
Unit
Hold on voltage
VHL
Pin10 DC voltage
0
0.1
V
Hold off voltage
VHH
Pin10 DC voltage
2.9
3.0
V
High-level pin input current
IHH
Pin10 = 3V
0.1
µA
Low-level pin input current
IHL
Pin10 = 0V
0.3
µA
No.A0204-2/4
LA1654FN
Package Dimensions
unit : mm
3319
TOP VIEW
SIDE VIEW
BOTTOM VIEW
3.8
16
16
(0.
05)
Exposed Die-Pad
Do Not Connect
(2.6)
3.4
(1.
76)
0.4
5
2 1
12
0.4
(0.5)
SIDE VIEW
0.8
5M
AX
(0.
8)
0.16
SANYO : VSON16(150mil)
0.0
2
Block Diagram
AGC Cap.
(Filter Cap.)
REC Cap.
TCO
14
13
12
11
Filter Output
Stand-by Switch
15
Hold Switch
NFB Cap.
16
10
9
VCC
REGULATOR
AGC
FILTER
DECODER
VCC
VCC
RECTIFIER
AMP
AGC-AMP
VCC
GND
1
2
3
4
5
6
7
8
AGC Amp-Input 1
AGC Amp-Input 2
VCC
AGC Amp-Output 1
AGC Amp-Output 2
GND
REC.-Input
(Filter Cap.)
PCA00623
No.A0204-3/4
LA1654FN
Test Circuit Diagram
0.22µF
AGC HOLD
0.01µF
NORMAL
NORMAL
STANDBY
TCO
0.47µF
0.22µF
750kΩ
16
15
REGULATOR
14
13
AGC
FILTER
VCC
AGCAMP
1
2
6.6MΩ
AMP
3
11
10
4.8MΩ
VCC
9
DECODER
VCC
55kΩ
55kΩ
VCC
RECTIFIER
GND
4
5
6
7
8
A
ICC
50Ω
0.47µF
12
0.1µF
0.47µF
VCC
3.0V
47kΩ 40kHz crystal
Signal Generator :
Zo=50Ω
PCA00624
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performance, characteristics, and functions of the described products in the independent state, and are
not guarantees of the performance, characteristics, and functions of the described products as mounted
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Information (including circuit diagrams and circuit parameters) herein is for example only; it is not
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This catalog provides information as of January, 2006. Specifications and information herein are subject
to change without notice.
PS No.A0204-4/4
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