Ordering number : ENA0205 Monolithic Linear IC LA1654C Time Code Reception IC Overview 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 0.05µA. 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 B8-7046 No.A0205-1/5 LA1654C Operating Characteristics at Ta = 25°C, VCC = 3.0V * : Packaged in a VSON16 package and measured using the SON11T016-001-MF socket (Yamaichi Electronics Co., Ltd.) Overall Characteristics Parameter Symbol Conditions Quiescent current ICCO No input, PAD15 = 0V, PAD10 = 3V Standby mode current drain ISTB PAD15 = 3.0V Ratings min typ 30 37 max Unit 50 µA 0.05 µA AGC Amplifier Input Characteristics Parameter Symbol Input impedance Input frequency range Conditions ZI PAD1 FIN PAD1 Minimum input voltage VMIN PAD1 input level Maximum input voltage VMAX PAD1 input level Ratings min typ max 800 37.5 Unit kΩ 80.0 1 100 kHz µVrms mVrms TCO Output Characteristics - Input signal = PAD1, fin = 40kHz, PAD10 = 3V, PAD15 = 0V Parameter Symbol Conditions Ratings min typ max Unit High-level output voltage VOH PAD11 output level 2.9 3.0 V Low-level output voltage VOL PAD11 output level 0 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 (500 ms input) Output pulse width (800 ms input) Output pulse width (200 ms input) STB Control Characteristics Parameter Symbol Conditions Ratings min typ max Unit Standby on voltage VSH PAD15 DC voltage 2.9 3.0 V Standby off voltage VSL PAD15 DC voltage 0 0.1 V High-level pin input current ISH PAD15 = 3V 0.1 µA Low-level pin input current ISL PAD15 = 0V 0.3 µA HOLD Control Characteristics - PAD15 = 0V Parameter Symbol Conditions Ratings min typ max Unit Hold on voltage VHL PAD10 DC voltage 0 0.1 V Hold off voltage VHH PAD10 DC voltage 2.9 3.0 V High-level pin input current IHH PAD10 = 3V 0.1 µA Low-level pin input current IHL PAD10 = 0V 0.3 µA No.A0205-2/5 LA1654C Chip Specifications Parameter Conditions Ratings mm2 330(±20) µm 127.5×127.5 µm2 105×105 µm2 Chip thickness Pad size Unit 1.26×2.00 Chip size Pad opening PAD Coordinates PAD X-Axis Y-Axis PAD X-Axis Y-Axis P1 902 151 TEST PAD 776.5 1849 P2 1109 299.5 P9 368.5 1849 P3A 1109 717.5 P10 151 1747 P3B 1109 508.5 P11 151 1600 P4 1109 926.5 P12 151 1453 P5 1109 1073.5 P13 151 547 P6A 1109 1282.5 P14 151 400 P6B 1109 1491.5 P15 151 253 P7 1109 1700.5 P16 368.5 151 P8 926 1849 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 : µm 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 LA1654C Pad Layout Diagram PCA00620 Block Diagram AGC Cap. (Filter Cap.) REC Cap. TCO 12 11 RECTIFIER AMP AGC-AMP DECODER FILTER AGC REGULATOR GND VCC Filter Output Stand-by Switch 13 Hold Switch NFB Cap. 14 9 15 10 16 VCC VCC VCC 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.) PCA00621 1 No.A0205-4/5 LA1654C 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 AMP 2 3 10 4.8MΩ VCC 9 VCC 55kΩ 55kΩ RECTIFIER GND 4 5 6 7 8 A ICC 50Ω 0.47µF 11 DECODER VCC 6.6MΩ 1 12 0.1µF 0.47µF VCC 3.0V 47kΩ 40kHz crystal Signal Generator : Zo=50Ω 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. 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Specifications and information herein are subject to change without notice. PS No.A0205-5/5