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 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.A0204-4/4