Ordering number : ENA0204
Monolithic Linear IC
LA1654FN
Overview
Time Code Reception IC
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 Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg Ta ≤ 70°C Conditions Ratings 5.0 10 -20 to +70 -40 to +125 Unit V mW °C °C
Operating Conditions at Ta = 25°C
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 B8-7022 No.A0204-1/4
LA1654FN
Operating Characteristics at Ta = 25°C, VCC = 3.0V
Overall Characteristics
Parameter Quiescent current Standby mode current drain Symbol ICCO ISTB Conditions No input, Pin15 = 0V, Pin10 = 3V Pin15 = 3.0V Ratings min 30 typ 37 max 50 0.05 Unit µA µA
AGC Amplifier Input Characteristics
Parameter Input impedance Input frequency range Minimum input voltage Maximum input voltage Symbol ZI FIN VMIN VMAX Pin1 Pin1 Pin1 input level Pin1 input level 100 37.5 Conditions Ratings min typ 800 80.0 1 max Unit kΩ kHz µVrms mVrms
TCO Output Characteristics - Input signal = Pin1, fin = 40kHz, Pin10 = 3V, Pin15 = 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 Pin 11 output level Pin 11 output level VIN = 0 to 100dBµV, AM modulation (1Hz square wave, duty = 50%, 10:1 modulation) VIN = 0 to 100dBµV, AM modulation (1Hz square wave, duty = 80%, 10:1 modulation) VIN = 0 to 100dBµV, 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 Pin15 DC voltage Pin15 DC voltage Pin15 = 3V Pin15 = 0V Conditions Ratings min 2.9 0 typ max 3.0 0.1 0.1 0.3 Unit V V µA µA
HOLD Control Characteristics - Pin15 = 0V
Parameter Hold on voltage Hold off voltage High-level pin input current Low-level pin input current Symbol VHL VHH IHH IHL Pin10 DC voltage Pin10 DC voltage Pin10 = 3V Pin10 = 0V Conditions Ratings min 0 2.9 typ max 0.1 3.0 0.1 0.3 Unit V V µA µA
No.A0204-2/4
LA1654FN
Package Dimensions
unit : mm 3319
TOP VIEW 3.8 16
(0. 05)
SIDE VIEW
BOTTOM VIEW Exposed Die-Pad Do Not Connect
16 (2.6)
3.4
0.4 5
(1. 76)
12 0.4 SIDE VIEW
21
(0.5)
0.8 5M AX
(0. 8)
0.16
0.0 2
SANYO : VSON16(150mil)
Block Diagram
Stand-by Switch Filter Output Hold Switch (Filter Cap.) AGC Cap. REC Cap. NFB Cap.
TCO
16
15
14
13
12
11
VCC
10
9
REGULATOR
AGC
FILTER
DECODER
VCC RECTIFIER
VCC
AGC-AMP VCC
AMP
GND
1
AGC Amp-Input 1
2
AGC Amp-Input 2
3
VCC
4
AGC Amp-Output 1
5
AGC Amp-Output 2
6
GND
7
REC.-Input
8
(Filter Cap.)
PCA00623
No.A0204-3/4
LA1654FN
Test Circuit Diagram
AGC HOLD NORMAL NORMAL STANDBY
TCO 0.22µF 0.22µF
0.01µF
0.47µF
750kΩ
16
15
14
13
FILTER
12
11
4.8MΩ VCC
10
9
REGULATOR
AGC
DECODER
VCC AGCAMP
6.6MΩ
VCC 55kΩ 55kΩ RECTIFIER
AMP VCC
GND
1
50Ω 0.47µF 0.47µF
2
3
A ICC
4
5
6
7
8
0.1µF 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