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Ordering number : ENA0205
Monolithic Linear IC
LA1654C
Overview
Time Code Reception IC
The LA1654C 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 LA1654C. Note that the LA1654C is a bare chip product that is not packaged.
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 0.05A. Japan : JJY 40/60kHz Germany : DCF77 77.5kHz
Specifications
Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg Ta 70C Conditions Ratings 5.0 10 -20 to +70 -40 to +125 Unit V mW C C
Operating Conditions at Ta = 25C
Parameter Recommended supply voltage Operating supply voltage range Symbol VCC VCC op Conditions Ratings min 1.5 1.1 typ max 3.0 3.6 Unit V 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 B8-7046 No.A0205-1/5
LA1654C
Operating Characteristics at Ta = 25C, VCC = 3.0V
* : Packaged in a VSON16 package and measured using the SON11T016-001-MF socket (Yamaichi Electronics Co., Ltd.)
Overall Characteristics
Parameter Quiescent current Standby mode current drain Symbol ICCO ISTB Conditions No input, PAD15 = 0V, PAD10 = 3V PAD15 = 3.0V Ratings min 30 typ 37 max 50 0.05 Unit A A
AGC Amplifier Input Characteristics
Parameter Input impedance Input frequency range Minimum input voltage Maximum input voltage Symbol ZI FIN VMIN VMAX PAD1 PAD1 PAD1 input level PAD1 input level 100 37.5 Conditions Ratings min typ 800 80.0 1 max Unit k kHz Vrms mVrms
TCO Output Characteristics - Input signal = PAD1, fin = 40kHz, PAD10 = 3V, PAD15 = 0V
Parameter High-level output voltage Low-level output voltage Output pulse width (500 ms input) Output pulse width (800 ms input) Output pulse width (200 ms input) T200 T800 Symbol VOH VOL T500 PAD11 output level PAD11 output level VIN = 0 to 100dBV, AM modulation (1Hz square wave, duty = 50%, 10:1 modulation) VIN = 0 to 100dBV, AM modulation (1Hz square wave, duty = 80%, 10:1 modulation) VIN = 0 to 100dBV, AM modulation (1Hz square wave, duty = 20%, 10:1 modulation) Conditions Ratings min 2.9 0 400 600 200 520 730 300 typ max 3.0 0.1 600 800 400 Unit V V ms ms ms
STB Control Characteristics
Parameter Standby on voltage Standby off voltage High-level pin input current Low-level pin input current Symbol VSH VSL ISH ISL PAD15 DC voltage PAD15 DC voltage PAD15 = 3V PAD15 = 0V Conditions Ratings min 2.9 0 typ max 3.0 0.1 0.1 0.3 Unit V V A A
HOLD Control Characteristics - PAD15 = 0V
Parameter Hold on voltage Hold off voltage High-level pin input current Low-level pin input current Symbol VHL VHH IHH IHL PAD10 DC voltage PAD10 DC voltage PAD10 = 3V PAD10 = 0V Conditions Ratings min 0 2.9 typ max 0.1 3.0 0.1 0.3 Unit V V A A
No.A0205-2/5
LA1654C
Chip Specifications
Parameter Chip size Chip thickness Pad size Pad opening Conditions Ratings 1.26x2.00 330(20) 127.5x127.5 105x105 Unit mm2 m m2 m2
PAD Coordinates
PAD P1 P2 P3A P3B P4 P5 P6A P6B P7 P8 X-Axis 902 1109 1109 1109 1109 1109 1109 1109 1109 926 Y-Axis 151 299.5 717.5 508.5 926.5 1073.5 1282.5 1491.5 1700.5 1849 PAD TEST PAD P9 P10 P11 P12 P13 P14 P15 P16 X-Axis 776.5 368.5 151 151 151 151 151 151 368.5 Y-Axis 1849 1849 1747 1600 1453 547 400 253 151
Notes 1. The left upper corner of the Pad Layout Diagram on the following page is the origin, the X axis increases to the right and the Y axis increases in the downward direction. 2. Units : m 3. The pad coordinates give the coordinate values of the center of the pads. 4. Both of each of the pairs P3A/P3B (VCC) and P6A/P6B (ground) must be bonded. 5. The test pads must not be connected (NC).
No.A0205-3/5
PCA00620
PCA00621
Filter Output
(Filter Cap.)
9
VCC
8
DECODER
Hold Switch
10
VCC
RECTIFIER
GND
7
REC.-Input
TCO
11
GND
LA1654C
12
6
REC Cap.
AGC Amp-Output 2
FILTER
VCC
13
5
AMP
(Filter Cap.)
AGC Amp-Output 1
AGC-AMP
14
AGC Cap.
AGC
VCC
4
VCC
Pad Layout Diagram
15
Stand-by Switch
REGULATOR
3
AGC Amp-Input 2
Block Diagram
2
16
NFB Cap.
AGC Amp-Input 1
1
No.A0205-4/5
LA1654C
Test Circuit Diagram
AGC HOLD NORMAL NORMAL STANDBY
TCO 0.22F 0.22F
0.01F
0.47F
750k
16
15
14
13
FILTER
12
11
4.8M VCC
10
9
REGULATOR
AGC
DECODER
VCC AGCAMP
6.6M
VCC 55k 55k RECTIFIER
AMP VCC
GND
1
50 0.47F 0.47F
2
3
A ICC 0.1F
4
5
6
7
8
VCC 3.0V
47k 40kHz crystal
Signal Generator : Zo=50
PCA00622
Specifications of any and all SANYO Semiconductor products described or contained herein stipulate the 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 in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment. SANYO Semiconductor Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO Semiconductor products (including technical data,services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of SANYO Semiconductor Co., Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO Semiconductor product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO Semiconductor believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of January, 2006. Specifications and information herein are subject to change without notice. PS No.A0205-5/5

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